Blind Mounting Screws for PCB Stand-Offs
The following describes a simple method for making effective low profile mounting feet for PCBs.
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Mounting feet.
- 1/4” wide acrylic plastic strips are made with a CNC machine or a router.
- A centered 1/8” dado is made down the length of the 1/4” strips.
- These strips are .064” thick with the dado set to .032”
- Drill centered (on the dado) M2 holes every 1/4” down the length above strips.
- Cut the feet with a razor saw every 1/4".
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Screws
- Grind the left and right sides off flat headed M2 screws.
- Insert the modified screws through a mounting foot from above.
- Add a brass M2 stand-off to this screw.
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PCB Mounting
- Attach 4 mounting feet from above in the PCB mounting holes.
- Position this assembly on your plastic chassis surface.
- Use DCM (Methylene chloride) or Epoxy to affix the 4 feet to the chassis.
