Selection Guide:
Spacers for Electronic Components

Step 2 - Inner Diameter (ID)

The inner diameters offered are designed so standard male screw threads can fit through without interference. This type of fit is called a clearance fit and why the ID can also be referred to as a “clearance hole”.  You can filter through available spacers based on the “screw size” (eg. #4, #10, M3, M6) and review all the spacers that fit your screw. Review the standard options available below.

Step 3 - Outer Diameter (OD)

For any ID, you may also consider going with a larger or smaller outside diameter (OD) to create a thick spacer or a thin spacer.  

A Large OD creates a thicker spacer and is an easy way to add strength. The larger OD spacers will resist bending or warping during installation compared to a smaller OD. In addition, the large OD provides added surface area where the board and spacer meet. This will reduce any potential for indentation or other damage on soft or delicate materials.

Smaller OD’s form a thin spacer and are perfect when space and weight are the primary concern. Choosing a smaller OD will decrease the footprint of the spacer and allow added room for other components, while reducing the overall weight of the part.

Step 4 - Length

Spacer Lengths are made true to size and held to a precise tolerance of +/-0.005 inch or +/- 0.13mm. To avoid needing multiple parts to fill up the distance between boards, many different lengths are readily available. Measure the distance between boards and find the length that matches up.