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Precision Shoulder Screw - Sockets

Shoulder Screws, sometimes referred to as Shoulder Bolts, tight tolerance shoulder screws, or Stripper Bolts, get their name from the unique shoulder found between the head and the threads of the screw. Lyn-Tron manufactures Precision Shoulder Screws, so named for the high tolerance (+/-0.0005) the shoulder diameter is held to.

Most commonly offered in the following materials, Lyn-tron's precision shoulder screws are available in other materials upon request.

All common thread sizes are stocked in both Inch (4-40, 6-32, 8-32, 10-32 etc.) and Metric (M3, M3.5, M4 etc.). Precision Shoulder Screw Sizes come standard from 1/8" up to 1/2" diameters and in Metric sizes from 3mm to 10mm diameters.

If you are in need of a custom precision shoulder bolt or part, we're happy to help. Feel free to contact us today with your concept and we can modify any of our shoulder screw dimensions to fit your specific application!

What Makes the Precision Shoulder Screw Socket Unique?

There are a few key differences between precision socket head shoulder screws, and other types of screws, or even other shoulder screws.

The primary difference between shoulder screws and other standard screws is the thick shoulder that separates the head of the screw and the thread. When the thread of a shoulder screw is installed, the shoulder will stay extended from the top of the surface. This provides shoulder screws with the unique ability to serve as guides for sliding elements, pivot points, or shafts for items that may need to rotate in an assembly.

The most obvious differentiator of socketed shoulder screws compared to slotted shoulder screws is the fact that the head of the screw features a hex-socket drive. This allows for a standard hex key to be used to drive the screw into place, whereas a slotted shoulder screw is built with a flathead driver in mind.

Precision shoulder screws are also unique from other "commercial grade" shoulder screws because of the high tolerance (+/-0.0005) the shoulder diameter and length are held to. This allows for a tight, but free fit with nominal-sized components which makes them perfect for use in electronic hardware applications.

Precision Shoulder Screws Selection Guide

Need help finding the right precision shoulder screw for your application? Check out our selection guide to find out how to select the right part for your unique needs.

More Questions?

Lyn-Tron has been the leading manufacturer of electronic components for over 50 years! We offer a full line of standard electronic hardware, and also have the ability to manufacture custom parts and OEM designed hardware to your print.

Feel free to Contact us today if you have any questions about selecting the right precision shoulder screws for your project, or if you have any requests for custom electronic hardware or parts manufacturing.

Additional Product Information

Steel Precision Shoulder Screw - Sockets

1/8"

Part Number Material Head Diameter Head Length Shoulder Diameter Shoulder Length Male Thread Thread Length Socket Width Details
ST7401 Steel 1/4" 1/8" 1/8" 1/8" #4-40 5/32" 5/64"
  • Material: Steel
  • Head Diameter: 1/4"
  • Head Length: 1/8"
  • Shoulder Diameter: 1/8"
  • Shoulder Length: 1/8"
  • Male Thread: #4-40
  • Thread Length: 5/32"
  • Socket Width: 5/64"
ST7402 Steel 1/4" 1/8" 1/8" 3/16" #4-40 5/32" 5/64"
  • Material: Steel
  • Head Diameter: 1/4"
  • Head Length: 1/8"
  • Shoulder Diameter: 1/8"
  • Shoulder Length: 3/16"
  • Male Thread: #4-40
  • Thread Length: 5/32"
  • Socket Width: 5/64"
ST7403 Steel 1/4" 1/8" 1/8" 1/4" #4-40 5/32" 5/64"
  • Material: Steel
  • Head Diameter: 1/4"
  • Head Length: 1/8"
  • Shoulder Diameter: 1/8"
  • Shoulder Length: 1/4"
  • Male Thread: #4-40
  • Thread Length: 5/32"
  • Socket Width: 5/64"
ST7404 Steel 1/4" 1/8" 1/8" 5/16" #4-40 5/32" 5/64"
  • Material: Steel
  • Head Diameter: 1/4"
  • Head Length: 1/8"
  • Shoulder Diameter: 1/8"
  • Shoulder Length: 5/16"
  • Male Thread: #4-40
  • Thread Length: 5/32"
  • Socket Width: 5/64"
ST7405 Steel 1/4" 1/8" 1/8" 3/8" #4-40 5/32" 5/64"
  • Material: Steel
  • Head Diameter: 1/4"
  • Head Length: 1/8"
  • Shoulder Diameter: 1/8"
  • Shoulder Length: 3/8"
  • Male Thread: #4-40
  • Thread Length: 5/32"
  • Socket Width: 5/64"
ST7406 Steel 1/4" 1/8" 1/8" 7/16" #4-40 5/32" 5/64"
  • Material: Steel
  • Head Diameter: 1/4"
  • Head Length: 1/8"
  • Shoulder Diameter: 1/8"
  • Shoulder Length: 7/16"
  • Male Thread: #4-40
  • Thread Length: 5/32"
  • Socket Width: 5/64"
ST7407 Steel 1/4" 1/8" 1/8" 1/2" #4-40 5/32" 5/64"
  • Material: Steel
  • Head Diameter: 1/4"
  • Head Length: 1/8"
  • Shoulder Diameter: 1/8"
  • Shoulder Length: 1/2"
  • Male Thread: #4-40
  • Thread Length: 5/32"
  • Socket Width: 5/64"

5/32"

Part Number Material Head Diameter Head Length Shoulder Diameter Shoulder Length Male Thread Thread Length Socket Width Details
ST7408 Steel 9/32" 1/8" 5/32" 1/8" #6-32 3/16" 3/32"
  • Material: Steel
  • Head Diameter: 9/32"
  • Head Length: 1/8"
  • Shoulder Diameter: 5/32"
  • Shoulder Length: 1/8"
  • Male Thread: #6-32
  • Thread Length: 3/16"
  • Socket Width: 3/32"
ST7409 Steel 9/32" 1/8" 5/32" 3/16" #6-32 3/16" 3/32"
  • Material: Steel
  • Head Diameter: 9/32"
  • Head Length: 1/8"
  • Shoulder Diameter: 5/32"
  • Shoulder Length: 3/16"
  • Male Thread: #6-32
  • Thread Length: 3/16"
  • Socket Width: 3/32"
ST7410 Steel 9/32" 1/8" 5/32" 1/4" #6-32 3/16" 3/32"
  • Material: Steel
  • Head Diameter: 9/32"
  • Head Length: 1/8"
  • Shoulder Diameter: 5/32"
  • Shoulder Length: 1/4"
  • Male Thread: #6-32
  • Thread Length: 3/16"
  • Socket Width: 3/32"
ST7411 Steel 9/32" 1/8" 5/32" 5/16" #6-32 3/16" 3/32"
  • Material: Steel
  • Head Diameter: 9/32"
  • Head Length: 1/8"
  • Shoulder Diameter: 5/32"
  • Shoulder Length: 5/16"
  • Male Thread: #6-32
  • Thread Length: 3/16"
  • Socket Width: 3/32"
ST7412 Steel 9/32" 1/8" 5/32" 3/8" #6-32 3/16" 3/32"
  • Material: Steel
  • Head Diameter: 9/32"
  • Head Length: 1/8"
  • Shoulder Diameter: 5/32"
  • Shoulder Length: 3/8"
  • Male Thread: #6-32
  • Thread Length: 3/16"
  • Socket Width: 3/32"
ST7413 Steel 9/32" 1/8" 5/32" 7/16" #6-32 3/16" 3/32"
  • Material: Steel
  • Head Diameter: 9/32"
  • Head Length: 1/8"
  • Shoulder Diameter: 5/32"
  • Shoulder Length: 7/16"
  • Male Thread: #6-32
  • Thread Length: 3/16"
  • Socket Width: 3/32"
ST7414 Steel 9/32" 1/8" 5/32" 1/2" #6-32 3/16" 3/32"
  • Material: Steel
  • Head Diameter: 9/32"
  • Head Length: 1/8"
  • Shoulder Diameter: 5/32"
  • Shoulder Length: 1/2"
  • Male Thread: #6-32
  • Thread Length: 3/16"
  • Socket Width: 3/32"
ST7415 Steel 9/32" 1/8" 5/32" 9/16" #6-32 3/16" 3/32"
  • Material: Steel
  • Head Diameter: 9/32"
  • Head Length: 1/8"
  • Shoulder Diameter: 5/32"
  • Shoulder Length: 9/16"
  • Male Thread: #6-32
  • Thread Length: 3/16"
  • Socket Width: 3/32"
ST7416 Steel 9/32" 1/8" 5/32" 5/8" #6-32 3/16" 3/32"
  • Material: Steel
  • Head Diameter: 9/32"
  • Head Length: 1/8"
  • Shoulder Diameter: 5/32"
  • Shoulder Length: 5/8"
  • Male Thread: #6-32
  • Thread Length: 3/16"
  • Socket Width: 3/32"
ST7417 Steel 9/32" 1/8" 5/32" 11/16" #6-32 3/16" 3/32"
  • Material: Steel
  • Head Diameter: 9/32"
  • Head Length: 1/8"
  • Shoulder Diameter: 5/32"
  • Shoulder Length: 11/16"
  • Male Thread: #6-32
  • Thread Length: 3/16"
  • Socket Width: 3/32"

3/16"

Part Number Material Head Diameter Head Length Shoulder Diameter Shoulder Length Male Thread Thread Length Socket Width Details
ST7419 Steel 5/16" 5/32" 3/16" 1/8" #8-32 3/16" 3/32"
  • Material: Steel
  • Head Diameter: 5/16"
  • Head Length: 5/32"
  • Shoulder Diameter: 3/16"
  • Shoulder Length: 1/8"
  • Male Thread: #8-32
  • Thread Length: 3/16"
  • Socket Width: 3/32"
ST7420 Steel 5/16" 5/32" 3/16" 3/16" #8-32 3/16" 3/32"
  • Material: Steel
  • Head Diameter: 5/16"
  • Head Length: 5/32"
  • Shoulder Diameter: 3/16"
  • Shoulder Length: 3/16"
  • Male Thread: #8-32
  • Thread Length: 3/16"
  • Socket Width: 3/32"
ST7421 Steel 5/16" 5/32" 3/16" 1/4" #8-32 3/16" 3/32"
  • Material: Steel
  • Head Diameter: 5/16"
  • Head Length: 5/32"
  • Shoulder Diameter: 3/16"
  • Shoulder Length: 1/4"
  • Male Thread: #8-32
  • Thread Length: 3/16"
  • Socket Width: 3/32"
ST7422 Steel 5/16" 5/32" 3/16" 5/16" #8-32 3/16" 3/32"
  • Material: Steel
  • Head Diameter: 5/16"
  • Head Length: 5/32"
  • Shoulder Diameter: 3/16"
  • Shoulder Length: 5/16"
  • Male Thread: #8-32
  • Thread Length: 3/16"
  • Socket Width: 3/32"
ST7423 Steel 5/16" 5/32" 3/16" 3/8" #8-32 3/16" 3/32"
  • Material: Steel
  • Head Diameter: 5/16"
  • Head Length: 5/32"
  • Shoulder Diameter: 3/16"
  • Shoulder Length: 3/8"
  • Male Thread: #8-32
  • Thread Length: 3/16"
  • Socket Width: 3/32"
ST7424 Steel 5/16" 5/32" 3/16" 7/16" #8-32 3/16" 3/32"
  • Material: Steel
  • Head Diameter: 5/16"
  • Head Length: 5/32"
  • Shoulder Diameter: 3/16"
  • Shoulder Length: 7/16"
  • Male Thread: #8-32
  • Thread Length: 3/16"
  • Socket Width: 3/32"
ST7425 Steel 5/16" 5/32" 3/16" 1/2" #8-32 3/16" 3/32"
  • Material: Steel
  • Head Diameter: 5/16"
  • Head Length: 5/32"
  • Shoulder Diameter: 3/16"
  • Shoulder Length: 1/2"
  • Male Thread: #8-32
  • Thread Length: 3/16"
  • Socket Width: 3/32"
ST7426 Steel 5/16" 5/32" 3/16" 9/16" #8-32 3/16" 3/32"
  • Material: Steel
  • Head Diameter: 5/16"
  • Head Length: 5/32"
  • Shoulder Diameter: 3/16"
  • Shoulder Length: 9/16"
  • Male Thread: #8-32
  • Thread Length: 3/16"
  • Socket Width: 3/32"
ST7427 Steel 5/16" 5/32" 3/16" 5/8" #8-32 3/16" 3/32"
  • Material: Steel
  • Head Diameter: 5/16"
  • Head Length: 5/32"
  • Shoulder Diameter: 3/16"
  • Shoulder Length: 5/8"
  • Male Thread: #8-32
  • Thread Length: 3/16"
  • Socket Width: 3/32"
ST7428 Steel 5/16" 5/32" 3/16" 11/16" #8-32 3/16" 3/32"
  • Material: Steel
  • Head Diameter: 5/16"
  • Head Length: 5/32"
  • Shoulder Diameter: 3/16"
  • Shoulder Length: 11/16"
  • Male Thread: #8-32
  • Thread Length: 3/16"
  • Socket Width: 3/32"

1/4"

Part Number Material Head Diameter Head Length Shoulder Diameter Shoulder Length Male Thread Thread Length Socket Width Details
ST7435 Steel 3/8" 3/16" 1/4" 1/8" #10-32 1/4" 1/8"
  • Material: Steel
  • Head Diameter: 3/8"
  • Head Length: 3/16"
  • Shoulder Diameter: 1/4"
  • Shoulder Length: 1/8"
  • Male Thread: #10-32
  • Thread Length: 1/4"
  • Socket Width: 1/8"
ST7436 Steel 3/8" 3/16" 1/4" 3/16" #10-32 1/4" 1/8"
  • Material: Steel
  • Head Diameter: 3/8"
  • Head Length: 3/16"
  • Shoulder Diameter: 1/4"
  • Shoulder Length: 3/16"
  • Male Thread: #10-32
  • Thread Length: 1/4"
  • Socket Width: 1/8"
ST7437 Steel 3/8" 3/16" 1/4" 1/4" #10-32 1/4" 1/8"
  • Material: Steel
  • Head Diameter: 3/8"
  • Head Length: 3/16"
  • Shoulder Diameter: 1/4"
  • Shoulder Length: 1/4"
  • Male Thread: #10-32
  • Thread Length: 1/4"
  • Socket Width: 1/8"
ST7438 Steel 3/8" 3/16" 1/4" 5/16" #10-32 1/4" 1/8"
  • Material: Steel
  • Head Diameter: 3/8"
  • Head Length: 3/16"
  • Shoulder Diameter: 1/4"
  • Shoulder Length: 5/16"
  • Male Thread: #10-32
  • Thread Length: 1/4"
  • Socket Width: 1/8"
ST7439 Steel 3/8" 3/16" 1/4" 3/8" #10-32 1/4" 1/8"
  • Material: Steel
  • Head Diameter: 3/8"
  • Head Length: 3/16"
  • Shoulder Diameter: 1/4"
  • Shoulder Length: 3/8"
  • Male Thread: #10-32
  • Thread Length: 1/4"
  • Socket Width: 1/8"
ST7440 Steel 3/8" 3/16" 1/4" 7/16" #10-32 1/4" 1/8"
  • Material: Steel
  • Head Diameter: 3/8"
  • Head Length: 3/16"
  • Shoulder Diameter: 1/4"
  • Shoulder Length: 7/16"
  • Male Thread: #10-32
  • Thread Length: 1/4"
  • Socket Width: 1/8"
ST7441 Steel 3/8" 3/16" 1/4" 1/2" #10-32 1/4" 1/8"
  • Material: Steel
  • Head Diameter: 3/8"
  • Head Length: 3/16"
  • Shoulder Diameter: 1/4"
  • Shoulder Length: 1/2"
  • Male Thread: #10-32
  • Thread Length: 1/4"
  • Socket Width: 1/8"
ST7442 Steel 3/8" 3/16" 1/4" 9/16" #10-32 1/4" 1/8"
  • Material: Steel
  • Head Diameter: 3/8"
  • Head Length: 3/16"
  • Shoulder Diameter: 1/4"
  • Shoulder Length: 9/16"
  • Male Thread: #10-32
  • Thread Length: 1/4"
  • Socket Width: 1/8"
ST7443 Steel 3/8" 3/16" 1/4" 5/8" #10-32 1/4" 1/8"
  • Material: Steel
  • Head Diameter: 3/8"
  • Head Length: 3/16"
  • Shoulder Diameter: 1/4"
  • Shoulder Length: 5/8"
  • Male Thread: #10-32
  • Thread Length: 1/4"
  • Socket Width: 1/8"
ST7444 Steel 3/8" 3/16" 1/4" 11/16" #10-32 1/4" 1/8"
  • Material: Steel
  • Head Diameter: 3/8"
  • Head Length: 3/16"
  • Shoulder Diameter: 1/4"
  • Shoulder Length: 11/16"
  • Male Thread: #10-32
  • Thread Length: 1/4"
  • Socket Width: 1/8"

5/16"

Part Number Material Head Diameter Head Length Shoulder Diameter Shoulder Length Male Thread Thread Length Socket Width Details
ST7451 Steel 7/16" 7/32" 5/16" 1/4" #1/4-20 3/8" 5/32"
  • Material: Steel
  • Head Diameter: 7/16"
  • Head Length: 7/32"
  • Shoulder Diameter: 5/16"
  • Shoulder Length: 1/4"
  • Male Thread: #1/4-20
  • Thread Length: 3/8"
  • Socket Width: 5/32"
ST7452 Steel 7/16" 7/32" 5/16" 5/16" #1/4-20 3/8" 5/32"
  • Material: Steel
  • Head Diameter: 7/16"
  • Head Length: 7/32"
  • Shoulder Diameter: 5/16"
  • Shoulder Length: 5/16"
  • Male Thread: #1/4-20
  • Thread Length: 3/8"
  • Socket Width: 5/32"
ST7453 Steel 7/16" 7/32" 5/16" 3/8" #1/4-20 3/8" 5/32"
  • Material: Steel
  • Head Diameter: 7/16"
  • Head Length: 7/32"
  • Shoulder Diameter: 5/16"
  • Shoulder Length: 3/8"
  • Male Thread: #1/4-20
  • Thread Length: 3/8"
  • Socket Width: 5/32"
ST7454 Steel 7/16" 7/32" 5/16" 1/2" #1/4-20 3/8" 5/32"
  • Material: Steel
  • Head Diameter: 7/16"
  • Head Length: 7/32"
  • Shoulder Diameter: 5/16"
  • Shoulder Length: 1/2"
  • Male Thread: #1/4-20
  • Thread Length: 3/8"
  • Socket Width: 5/32"
ST7455 Steel 7/16" 7/32" 5/16" 5/8" #1/4-20 3/8" 5/32"
  • Material: Steel
  • Head Diameter: 7/16"
  • Head Length: 7/32"
  • Shoulder Diameter: 5/16"
  • Shoulder Length: 5/8"
  • Male Thread: #1/4-20
  • Thread Length: 3/8"
  • Socket Width: 5/32"
ST7456 Steel 7/16" 7/32" 5/16" 3/4" #1/4-20 3/8" 5/32"
  • Material: Steel
  • Head Diameter: 7/16"
  • Head Length: 7/32"
  • Shoulder Diameter: 5/16"
  • Shoulder Length: 3/4"
  • Male Thread: #1/4-20
  • Thread Length: 3/8"
  • Socket Width: 5/32"
ST7457 Steel 7/16" 7/32" 5/16" 7/8" #1/4-20 3/8" 5/32"
  • Material: Steel
  • Head Diameter: 7/16"
  • Head Length: 7/32"
  • Shoulder Diameter: 5/16"
  • Shoulder Length: 7/8"
  • Male Thread: #1/4-20
  • Thread Length: 3/8"
  • Socket Width: 5/32"
ST7458 Steel 7/16" 7/32" 5/16" 1" #1/4-20 3/8" 5/32"
  • Material: Steel
  • Head Diameter: 7/16"
  • Head Length: 7/32"
  • Shoulder Diameter: 5/16"
  • Shoulder Length: 1"
  • Male Thread: #1/4-20
  • Thread Length: 3/8"
  • Socket Width: 5/32"

3/8"

Part Number Material Head Diameter Head Length Shoulder Diameter Shoulder Length Male Thread Thread Length Socket Width Details
ST7459 Steel 1/2" 7/32" 3/8" 1/4" #1/4-20 3/8" 5/32"
  • Material: Steel
  • Head Diameter: 1/2"
  • Head Length: 7/32"
  • Shoulder Diameter: 3/8"
  • Shoulder Length: 1/4"
  • Male Thread: #1/4-20
  • Thread Length: 3/8"
  • Socket Width: 5/32"
ST7460 Steel 1/2" 7/32" 3/8" 5/16" #1/4-20 3/8" 5/32"
  • Material: Steel
  • Head Diameter: 1/2"
  • Head Length: 7/32"
  • Shoulder Diameter: 3/8"
  • Shoulder Length: 5/16"
  • Male Thread: #1/4-20
  • Thread Length: 3/8"
  • Socket Width: 5/32"
ST7461 Steel 1/2" 7/32" 3/8" 3/8" #1/4-20 3/8" 5/32"
  • Material: Steel
  • Head Diameter: 1/2"
  • Head Length: 7/32"
  • Shoulder Diameter: 3/8"
  • Shoulder Length: 3/8"
  • Male Thread: #1/4-20
  • Thread Length: 3/8"
  • Socket Width: 5/32"
ST7462 Steel 1/2" 7/32" 3/8" 1/2" #1/4-20 3/8" 5/32"
  • Material: Steel
  • Head Diameter: 1/2"
  • Head Length: 7/32"
  • Shoulder Diameter: 3/8"
  • Shoulder Length: 1/2"
  • Male Thread: #1/4-20
  • Thread Length: 3/8"
  • Socket Width: 5/32"
ST7463 Steel 1/2" 7/32" 3/8" 5/8" #1/4-20 3/8" 5/32"
  • Material: Steel
  • Head Diameter: 1/2"
  • Head Length: 7/32"
  • Shoulder Diameter: 3/8"
  • Shoulder Length: 5/8"
  • Male Thread: #1/4-20
  • Thread Length: 3/8"
  • Socket Width: 5/32"
ST7464 Steel 1/2" 7/32" 3/8" 3/4" #1/4-20 3/8" 5/32"
  • Material: Steel
  • Head Diameter: 1/2"
  • Head Length: 7/32"
  • Shoulder Diameter: 3/8"
  • Shoulder Length: 3/4"
  • Male Thread: #1/4-20
  • Thread Length: 3/8"
  • Socket Width: 5/32"
ST7465 Steel 1/2" 7/32" 3/8" 7/8" #1/4-20 3/8" 5/32"
  • Material: Steel
  • Head Diameter: 1/2"
  • Head Length: 7/32"
  • Shoulder Diameter: 3/8"
  • Shoulder Length: 7/8"
  • Male Thread: #1/4-20
  • Thread Length: 3/8"
  • Socket Width: 5/32"
ST7466 Steel 1/2" 7/32" 3/8" 1" #1/4-20 3/8" 5/32"
  • Material: Steel
  • Head Diameter: 1/2"
  • Head Length: 7/32"
  • Shoulder Diameter: 3/8"
  • Shoulder Length: 1"
  • Male Thread: #1/4-20
  • Thread Length: 3/8"
  • Socket Width: 5/32"
ST7467 Steel 1/2" 7/32" 3/8" 1/4" #5/16-18 7/16" 3/16"
  • Material: Steel
  • Head Diameter: 1/2"
  • Head Length: 7/32"
  • Shoulder Diameter: 3/8"
  • Shoulder Length: 1/4"
  • Male Thread: #5/16-18
  • Thread Length: 7/16"
  • Socket Width: 3/16"
ST7468 Steel 1/2" 7/32" 3/8" 5/16" #5/16-18 7/16" 3/16"
  • Material: Steel
  • Head Diameter: 1/2"
  • Head Length: 7/32"
  • Shoulder Diameter: 3/8"
  • Shoulder Length: 5/16"
  • Male Thread: #5/16-18
  • Thread Length: 7/16"
  • Socket Width: 3/16"

1/2"

Part Number Material Head Diameter Head Length Shoulder Diameter Shoulder Length Male Thread Thread Length Socket Width Details
ST7475 Steel 5/8" 1/4" 1/2" 1/4" #3/8-16 1/2" 1/4"
  • Material: Steel
  • Head Diameter: 5/8"
  • Head Length: 1/4"
  • Shoulder Diameter: 1/2"
  • Shoulder Length: 1/4"
  • Male Thread: #3/8-16
  • Thread Length: 1/2"
  • Socket Width: 1/4"
ST7476 Steel 5/8" 1/4" 1/2" 5/16" #3/8-16 1/2" 1/4"
  • Material: Steel
  • Head Diameter: 5/8"
  • Head Length: 1/4"
  • Shoulder Diameter: 1/2"
  • Shoulder Length: 5/16"
  • Male Thread: #3/8-16
  • Thread Length: 1/2"
  • Socket Width: 1/4"
ST7477 Steel 5/8" 1/4" 1/2" 3/8" #3/8-16 1/2" 1/4"
  • Material: Steel
  • Head Diameter: 5/8"
  • Head Length: 1/4"
  • Shoulder Diameter: 1/2"
  • Shoulder Length: 3/8"
  • Male Thread: #3/8-16
  • Thread Length: 1/2"
  • Socket Width: 1/4"
ST7478 Steel 5/8" 1/4" 1/2" 1/2" #3/8-16 1/2" 1/4"
  • Material: Steel
  • Head Diameter: 5/8"
  • Head Length: 1/4"
  • Shoulder Diameter: 1/2"
  • Shoulder Length: 1/2"
  • Male Thread: #3/8-16
  • Thread Length: 1/2"
  • Socket Width: 1/4"
ST7479 Steel 5/8" 1/4" 1/2" 5/8" #3/8-16 1/2" 1/4"
  • Material: Steel
  • Head Diameter: 5/8"
  • Head Length: 1/4"
  • Shoulder Diameter: 1/2"
  • Shoulder Length: 5/8"
  • Male Thread: #3/8-16
  • Thread Length: 1/2"
  • Socket Width: 1/4"
ST7480 Steel 5/8" 1/4" 1/2" 3/4" #3/8-16 1/2" 1/4"
  • Material: Steel
  • Head Diameter: 5/8"
  • Head Length: 1/4"
  • Shoulder Diameter: 1/2"
  • Shoulder Length: 3/4"
  • Male Thread: #3/8-16
  • Thread Length: 1/2"
  • Socket Width: 1/4"
ST7481 Steel 5/8" 1/4" 1/2" 7/8" #3/8-16 1/2" 1/4"
  • Material: Steel
  • Head Diameter: 5/8"
  • Head Length: 1/4"
  • Shoulder Diameter: 1/2"
  • Shoulder Length: 7/8"
  • Male Thread: #3/8-16
  • Thread Length: 1/2"
  • Socket Width: 1/4"
ST7482 Steel 5/8" 1/4" 1/2" 1" #3/8-16 1/2" 1/4"
  • Material: Steel
  • Head Diameter: 5/8"
  • Head Length: 1/4"
  • Shoulder Diameter: 1/2"
  • Shoulder Length: 1"
  • Male Thread: #3/8-16
  • Thread Length: 1/2"
  • Socket Width: 1/4"

3.16mm

Part Number Material Head Diameter Head Length Shoulder Diameter Shoulder Length Male Thread Thread Length Socket Width Details
ST5370 Steel 6mm 3.18mm 3.16mm 3.18mm M3.0x0.5 4mm 2mm
  • Material: Steel
  • Head Diameter: 6mm
  • Head Length: 3.18mm
  • Shoulder Diameter: 3.16mm
  • Shoulder Length: 3.18mm
  • Male Thread: M3.0x0.5
  • Thread Length: 4mm
  • Socket Width: 2mm
ST5371 Steel 6mm 3.18mm 3.16mm 4.76mm M3.0x0.5 4mm 2mm
  • Material: Steel
  • Head Diameter: 6mm
  • Head Length: 3.18mm
  • Shoulder Diameter: 3.16mm
  • Shoulder Length: 4.76mm
  • Male Thread: M3.0x0.5
  • Thread Length: 4mm
  • Socket Width: 2mm
ST5372 Steel 6mm 3.18mm 3.16mm 6.35mm M3.0x0.5 4mm 2mm
  • Material: Steel
  • Head Diameter: 6mm
  • Head Length: 3.18mm
  • Shoulder Diameter: 3.16mm
  • Shoulder Length: 6.35mm
  • Male Thread: M3.0x0.5
  • Thread Length: 4mm
  • Socket Width: 2mm
ST5373 Steel 6mm 3.18mm 3.16mm 7.94mm M3.0x0.5 4mm 2mm
  • Material: Steel
  • Head Diameter: 6mm
  • Head Length: 3.18mm
  • Shoulder Diameter: 3.16mm
  • Shoulder Length: 7.94mm
  • Male Thread: M3.0x0.5
  • Thread Length: 4mm
  • Socket Width: 2mm
ST5374 Steel 6mm 3.18mm 3.16mm 9.52mm M3.0x0.5 4mm 2mm
  • Material: Steel
  • Head Diameter: 6mm
  • Head Length: 3.18mm
  • Shoulder Diameter: 3.16mm
  • Shoulder Length: 9.52mm
  • Male Thread: M3.0x0.5
  • Thread Length: 4mm
  • Socket Width: 2mm
ST5375 Steel 6mm 3.18mm 3.16mm 11.11mm M3.0x0.5 4.75mm 2mm
  • Material: Steel
  • Head Diameter: 6mm
  • Head Length: 3.18mm
  • Shoulder Diameter: 3.16mm
  • Shoulder Length: 11.11mm
  • Male Thread: M3.0x0.5
  • Thread Length: 4.75mm
  • Socket Width: 2mm
ST5376 Steel 6mm 3.18mm 3.16mm 12.70mm M3.0x0.5 4.75mm 2mm
  • Material: Steel
  • Head Diameter: 6mm
  • Head Length: 3.18mm
  • Shoulder Diameter: 3.16mm
  • Shoulder Length: 12.70mm
  • Male Thread: M3.0x0.5
  • Thread Length: 4.75mm
  • Socket Width: 2mm

3.96mm

Part Number Material Head Diameter Head Length Shoulder Diameter Shoulder Length Male Thread Thread Length Socket Width Details
ST5377 Steel 7mm 3.18mm 3.96mm 3.18mm M3.5x0.6 4.75mm 2.5mm
  • Material: Steel
  • Head Diameter: 7mm
  • Head Length: 3.18mm
  • Shoulder Diameter: 3.96mm
  • Shoulder Length: 3.18mm
  • Male Thread: M3.5x0.6
  • Thread Length: 4.75mm
  • Socket Width: 2.5mm
ST5378 Steel 7mm 3.18mm 3.96mm 4.76mm M3.5x0.6 4.75mm 2.5mm
  • Material: Steel
  • Head Diameter: 7mm
  • Head Length: 3.18mm
  • Shoulder Diameter: 3.96mm
  • Shoulder Length: 4.76mm
  • Male Thread: M3.5x0.6
  • Thread Length: 4.75mm
  • Socket Width: 2.5mm
ST5379 Steel 7mm 3.18mm 3.96mm 6.35mm M3.5x0.6 4.75mm 2.5mm
  • Material: Steel
  • Head Diameter: 7mm
  • Head Length: 3.18mm
  • Shoulder Diameter: 3.96mm
  • Shoulder Length: 6.35mm
  • Male Thread: M3.5x0.6
  • Thread Length: 4.75mm
  • Socket Width: 2.5mm
ST5380 Steel 7mm 3.18mm 3.96mm 7.94mm M3.5x0.6 4.75mm 2.5mm
  • Material: Steel
  • Head Diameter: 7mm
  • Head Length: 3.18mm
  • Shoulder Diameter: 3.96mm
  • Shoulder Length: 7.94mm
  • Male Thread: M3.5x0.6
  • Thread Length: 4.75mm
  • Socket Width: 2.5mm
ST5381 Steel 7mm 3.18mm 3.96mm 9.52mm M3.5x0.6 4.75mm 2.5mm
  • Material: Steel
  • Head Diameter: 7mm
  • Head Length: 3.18mm
  • Shoulder Diameter: 3.96mm
  • Shoulder Length: 9.52mm
  • Male Thread: M3.5x0.6
  • Thread Length: 4.75mm
  • Socket Width: 2.5mm
ST5382 Steel 7mm 3.18mm 3.96mm 11.11mm M3.5x0.6 4.75mm 2.5mm
  • Material: Steel
  • Head Diameter: 7mm
  • Head Length: 3.18mm
  • Shoulder Diameter: 3.96mm
  • Shoulder Length: 11.11mm
  • Male Thread: M3.5x0.6
  • Thread Length: 4.75mm
  • Socket Width: 2.5mm
ST5383 Steel 7mm 3.18mm 3.96mm 12.70mm M3.5x0.6 4.75mm 2.5mm
  • Material: Steel
  • Head Diameter: 7mm
  • Head Length: 3.18mm
  • Shoulder Diameter: 3.96mm
  • Shoulder Length: 12.70mm
  • Male Thread: M3.5x0.6
  • Thread Length: 4.75mm
  • Socket Width: 2.5mm
ST5384 Steel 7mm 3.18mm 3.96mm 14.29mm M3.5x0.6 4.75mm 2.5mm
  • Material: Steel
  • Head Diameter: 7mm
  • Head Length: 3.18mm
  • Shoulder Diameter: 3.96mm
  • Shoulder Length: 14.29mm
  • Male Thread: M3.5x0.6
  • Thread Length: 4.75mm
  • Socket Width: 2.5mm
ST5385 Steel 7mm 3.18mm 3.96mm 15.87mm M3.5x0.6 4.75mm 2.5mm
  • Material: Steel
  • Head Diameter: 7mm
  • Head Length: 3.18mm
  • Shoulder Diameter: 3.96mm
  • Shoulder Length: 15.87mm
  • Male Thread: M3.5x0.6
  • Thread Length: 4.75mm
  • Socket Width: 2.5mm
ST5386 Steel 7mm 3.18mm 3.96mm 17.46mm M3.5x0.6 4.75mm 2.5mm
  • Material: Steel
  • Head Diameter: 7mm
  • Head Length: 3.18mm
  • Shoulder Diameter: 3.96mm
  • Shoulder Length: 17.46mm
  • Male Thread: M3.5x0.6
  • Thread Length: 4.75mm
  • Socket Width: 2.5mm

4.75mm

Part Number Material Head Diameter Head Length Shoulder Diameter Shoulder Length Male Thread Thread Length Socket Width Details
ST5388 Steel 8mm 3.96mm 4.75mm 3.18mm M4.0x0.7 4.75mm 2.5mm
  • Material: Steel
  • Head Diameter: 8mm
  • Head Length: 3.96mm
  • Shoulder Diameter: 4.75mm
  • Shoulder Length: 3.18mm
  • Male Thread: M4.0x0.7
  • Thread Length: 4.75mm
  • Socket Width: 2.5mm
ST5389 Steel 8mm 3.96mm 4.75mm 4.76mm M4.0x0.7 4.75mm 2.5mm
  • Material: Steel
  • Head Diameter: 8mm
  • Head Length: 3.96mm
  • Shoulder Diameter: 4.75mm
  • Shoulder Length: 4.76mm
  • Male Thread: M4.0x0.7
  • Thread Length: 4.75mm
  • Socket Width: 2.5mm
ST5390 Steel 8mm 3.96mm 4.75mm 6.35mm M4.0x0.7 4.75mm 2.5mm
  • Material: Steel
  • Head Diameter: 8mm
  • Head Length: 3.96mm
  • Shoulder Diameter: 4.75mm
  • Shoulder Length: 6.35mm
  • Male Thread: M4.0x0.7
  • Thread Length: 4.75mm
  • Socket Width: 2.5mm
ST5391 Steel 8mm 3.96mm 4.75mm 7.94mm M4.0x0.7 4.75mm 2.5mm
  • Material: Steel
  • Head Diameter: 8mm
  • Head Length: 3.96mm
  • Shoulder Diameter: 4.75mm
  • Shoulder Length: 7.94mm
  • Male Thread: M4.0x0.7
  • Thread Length: 4.75mm
  • Socket Width: 2.5mm
ST5392 Steel 8mm 3.96mm 4.75mm 9.52mm M4.0x0.7 4.75mm 2.5mm
  • Material: Steel
  • Head Diameter: 8mm
  • Head Length: 3.96mm
  • Shoulder Diameter: 4.75mm
  • Shoulder Length: 9.52mm
  • Male Thread: M4.0x0.7
  • Thread Length: 4.75mm
  • Socket Width: 2.5mm
ST5393 Steel 8mm 3.96mm 4.75mm 11.11mm M4.0x0.7 4.75mm 2.5mm
  • Material: Steel
  • Head Diameter: 8mm
  • Head Length: 3.96mm
  • Shoulder Diameter: 4.75mm
  • Shoulder Length: 11.11mm
  • Male Thread: M4.0x0.7
  • Thread Length: 4.75mm
  • Socket Width: 2.5mm
ST5394 Steel 8mm 3.96mm 4.75mm 12.70mm M4.0x0.7 4.75mm 2.5mm
  • Material: Steel
  • Head Diameter: 8mm
  • Head Length: 3.96mm
  • Shoulder Diameter: 4.75mm
  • Shoulder Length: 12.70mm
  • Male Thread: M4.0x0.7
  • Thread Length: 4.75mm
  • Socket Width: 2.5mm
ST5395 Steel 8mm 3.96mm 4.75mm 14.29mm M4.0x0.7 4.75mm 2.5mm
  • Material: Steel
  • Head Diameter: 8mm
  • Head Length: 3.96mm
  • Shoulder Diameter: 4.75mm
  • Shoulder Length: 14.29mm
  • Male Thread: M4.0x0.7
  • Thread Length: 4.75mm
  • Socket Width: 2.5mm
ST5396 Steel 8mm 3.96mm 4.75mm 15.87mm M4.0x0.7 4.75mm 2.5mm
  • Material: Steel
  • Head Diameter: 8mm
  • Head Length: 3.96mm
  • Shoulder Diameter: 4.75mm
  • Shoulder Length: 15.87mm
  • Male Thread: M4.0x0.7
  • Thread Length: 4.75mm
  • Socket Width: 2.5mm
ST5397 Steel 8mm 3.96mm 4.75mm 17.46mm M4.0x0.7 4.75mm 2.5mm
  • Material: Steel
  • Head Diameter: 8mm
  • Head Length: 3.96mm
  • Shoulder Diameter: 4.75mm
  • Shoulder Length: 17.46mm
  • Male Thread: M4.0x0.7
  • Thread Length: 4.75mm
  • Socket Width: 2.5mm

6.34mm

Part Number Material Head Diameter Head Length Shoulder Diameter Shoulder Length Male Thread Thread Length Socket Width Details
ST5401 Steel 10mm 4.8mm 6.34mm 3.18mm M5.0x0.8 6.3mm 3mm
  • Material: Steel
  • Head Diameter: 10mm
  • Head Length: 4.8mm
  • Shoulder Diameter: 6.34mm
  • Shoulder Length: 3.18mm
  • Male Thread: M5.0x0.8
  • Thread Length: 6.3mm
  • Socket Width: 3mm
ST5402 Steel 10mm 4.8mm 6.34mm 4.76mm M5.0x0.8 6.3mm 3mm
  • Material: Steel
  • Head Diameter: 10mm
  • Head Length: 4.8mm
  • Shoulder Diameter: 6.34mm
  • Shoulder Length: 4.76mm
  • Male Thread: M5.0x0.8
  • Thread Length: 6.3mm
  • Socket Width: 3mm
ST5403 Steel 10mm 4.8mm 6.34mm 6.35mm M5.0x0.8 6.3mm 3mm
  • Material: Steel
  • Head Diameter: 10mm
  • Head Length: 4.8mm
  • Shoulder Diameter: 6.34mm
  • Shoulder Length: 6.35mm
  • Male Thread: M5.0x0.8
  • Thread Length: 6.3mm
  • Socket Width: 3mm
ST5404 Steel 10mm 4.8mm 6.34mm 7.94mm M5.0x0.8 6.3mm 3mm
  • Material: Steel
  • Head Diameter: 10mm
  • Head Length: 4.8mm
  • Shoulder Diameter: 6.34mm
  • Shoulder Length: 7.94mm
  • Male Thread: M5.0x0.8
  • Thread Length: 6.3mm
  • Socket Width: 3mm
ST5405 Steel 10mm 4.8mm 6.34mm 9.52mm M5.0x0.8 6.3mm 3mm
  • Material: Steel
  • Head Diameter: 10mm
  • Head Length: 4.8mm
  • Shoulder Diameter: 6.34mm
  • Shoulder Length: 9.52mm
  • Male Thread: M5.0x0.8
  • Thread Length: 6.3mm
  • Socket Width: 3mm
ST5406 Steel 10mm 4.8mm 6.34mm 11.11mm M5.0x0.8 6.3mm 3mm
  • Material: Steel
  • Head Diameter: 10mm
  • Head Length: 4.8mm
  • Shoulder Diameter: 6.34mm
  • Shoulder Length: 11.11mm
  • Male Thread: M5.0x0.8
  • Thread Length: 6.3mm
  • Socket Width: 3mm
ST5407 Steel 10mm 4.8mm 6.34mm 12.70mm M5.0x0.8 6.3mm 3mm
  • Material: Steel
  • Head Diameter: 10mm
  • Head Length: 4.8mm
  • Shoulder Diameter: 6.34mm
  • Shoulder Length: 12.70mm
  • Male Thread: M5.0x0.8
  • Thread Length: 6.3mm
  • Socket Width: 3mm
ST5408 Steel 10mm 4.8mm 6.34mm 14.29mm M5.0x0.8 6.3mm 3mm
  • Material: Steel
  • Head Diameter: 10mm
  • Head Length: 4.8mm
  • Shoulder Diameter: 6.34mm
  • Shoulder Length: 14.29mm
  • Male Thread: M5.0x0.8
  • Thread Length: 6.3mm
  • Socket Width: 3mm
ST5409 Steel 10mm 4.8mm 6.34mm 15.87mm M5.0x0.8 6.3mm 3mm
  • Material: Steel
  • Head Diameter: 10mm
  • Head Length: 4.8mm
  • Shoulder Diameter: 6.34mm
  • Shoulder Length: 15.87mm
  • Male Thread: M5.0x0.8
  • Thread Length: 6.3mm
  • Socket Width: 3mm
ST5410 Steel 10mm 4.8mm 6.34mm 17.46mm M5.0x0.8 6.3mm 3mm
  • Material: Steel
  • Head Diameter: 10mm
  • Head Length: 4.8mm
  • Shoulder Diameter: 6.34mm
  • Shoulder Length: 17.46mm
  • Male Thread: M5.0x0.8
  • Thread Length: 6.3mm
  • Socket Width: 3mm

7.93mm

Part Number Material Head Diameter Head Length Shoulder Diameter Shoulder Length Male Thread Thread Length Socket Width Details
ST5414 Steel 11mm 5.5mm 7.93mm 6.35mm M6.0x1.0 9.4mm 4mm
  • Material: Steel
  • Head Diameter: 11mm
  • Head Length: 5.5mm
  • Shoulder Diameter: 7.93mm
  • Shoulder Length: 6.35mm
  • Male Thread: M6.0x1.0
  • Thread Length: 9.4mm
  • Socket Width: 4mm
ST5415 Steel 11mm 5.5mm 7.93mm 9.52mm M6.0x1.0 9.4mm 4mm
  • Material: Steel
  • Head Diameter: 11mm
  • Head Length: 5.5mm
  • Shoulder Diameter: 7.93mm
  • Shoulder Length: 9.52mm
  • Male Thread: M6.0x1.0
  • Thread Length: 9.4mm
  • Socket Width: 4mm
ST5416 Steel 11mm 5.5mm 7.93mm 12.70mm M6.0x1.0 9.4mm 4mm
  • Material: Steel
  • Head Diameter: 11mm
  • Head Length: 5.5mm
  • Shoulder Diameter: 7.93mm
  • Shoulder Length: 12.70mm
  • Male Thread: M6.0x1.0
  • Thread Length: 9.4mm
  • Socket Width: 4mm
ST5417 Steel 11mm 5.5mm 7.93mm 14.29mm M6.0x1.0 9.4mm 4mm
  • Material: Steel
  • Head Diameter: 11mm
  • Head Length: 5.5mm
  • Shoulder Diameter: 7.93mm
  • Shoulder Length: 14.29mm
  • Male Thread: M6.0x1.0
  • Thread Length: 9.4mm
  • Socket Width: 4mm
ST5418 Steel 11mm 5.5mm 7.93mm 19.05mm M6.0x1.0 9.4mm 4mm
  • Material: Steel
  • Head Diameter: 11mm
  • Head Length: 5.5mm
  • Shoulder Diameter: 7.93mm
  • Shoulder Length: 19.05mm
  • Male Thread: M6.0x1.0
  • Thread Length: 9.4mm
  • Socket Width: 4mm
ST5419 Steel 11mm 5.5mm 7.93mm 22.22mm M6.0x1.0 9.4mm 4mm
  • Material: Steel
  • Head Diameter: 11mm
  • Head Length: 5.5mm
  • Shoulder Diameter: 7.93mm
  • Shoulder Length: 22.22mm
  • Male Thread: M6.0x1.0
  • Thread Length: 9.4mm
  • Socket Width: 4mm
ST5420 Steel 11mm 5.5mm 7.93mm 25.40mm M6.0x1.0 9.4mm 4mm
  • Material: Steel
  • Head Diameter: 11mm
  • Head Length: 5.5mm
  • Shoulder Diameter: 7.93mm
  • Shoulder Length: 25.40mm
  • Male Thread: M6.0x1.0
  • Thread Length: 9.4mm
  • Socket Width: 4mm

9.51mm

Part Number Material Head Diameter Head Length Shoulder Diameter Shoulder Length Male Thread Thread Length Socket Width Details
ST5421 Steel 13mm 5.5mm 9.51mm 6.35mm M6.0x1.0 9.4mm 4mm
  • Material: Steel
  • Head Diameter: 13mm
  • Head Length: 5.5mm
  • Shoulder Diameter: 9.51mm
  • Shoulder Length: 6.35mm
  • Male Thread: M6.0x1.0
  • Thread Length: 9.4mm
  • Socket Width: 4mm
ST5422 Steel 13mm 5.5mm 9.51mm 9.52mm M6.0x1.0 9.4mm 4mm
  • Material: Steel
  • Head Diameter: 13mm
  • Head Length: 5.5mm
  • Shoulder Diameter: 9.51mm
  • Shoulder Length: 9.52mm
  • Male Thread: M6.0x1.0
  • Thread Length: 9.4mm
  • Socket Width: 4mm
ST5423 Steel 13mm 5.5mm 9.51mm 12.70mm M6.0x1.0 9.4mm 4mm
  • Material: Steel
  • Head Diameter: 13mm
  • Head Length: 5.5mm
  • Shoulder Diameter: 9.51mm
  • Shoulder Length: 12.70mm
  • Male Thread: M6.0x1.0
  • Thread Length: 9.4mm
  • Socket Width: 4mm
ST5424 Steel 13mm 5.5mm 9.51mm 14.29mm M6.0x1.0 9.4mm 4mm
  • Material: Steel
  • Head Diameter: 13mm
  • Head Length: 5.5mm
  • Shoulder Diameter: 9.51mm
  • Shoulder Length: 14.29mm
  • Male Thread: M6.0x1.0
  • Thread Length: 9.4mm
  • Socket Width: 4mm
ST5425 Steel 13mm 5.5mm 9.51mm 19.05mm M6.0x1.0 9.4mm 4mm
  • Material: Steel
  • Head Diameter: 13mm
  • Head Length: 5.5mm
  • Shoulder Diameter: 9.51mm
  • Shoulder Length: 19.05mm
  • Male Thread: M6.0x1.0
  • Thread Length: 9.4mm
  • Socket Width: 4mm
ST5426 Steel 13mm 5.5mm 9.51mm 22.22mm M6.0x1.0 9.4mm 4mm
  • Material: Steel
  • Head Diameter: 13mm
  • Head Length: 5.5mm
  • Shoulder Diameter: 9.51mm
  • Shoulder Length: 22.22mm
  • Male Thread: M6.0x1.0
  • Thread Length: 9.4mm
  • Socket Width: 4mm
ST5427 Steel 13mm 5.5mm 9.51mm 25.40mm M6.0x1.0 9.4mm 4mm
  • Material: Steel
  • Head Diameter: 13mm
  • Head Length: 5.5mm
  • Shoulder Diameter: 9.51mm
  • Shoulder Length: 25.40mm
  • Male Thread: M6.0x1.0
  • Thread Length: 9.4mm
  • Socket Width: 4mm