Electro Hardware S1067-M04-F16-G Circuit Board Spacer

Product Description

The ELECTRO HARDWARE S1067-M04-F16-G is a round, female unthreaded circuit board spacer machined from aluminum grade T-3 stock to the QQ-A-225A Comp 2 fastener standard. It measures 5/16 inches (0.3125 inches) overall length with an outside diameter of 3/8 inches (0.3750 inches) and an inside diameter of 0.141 inches, sized to accept a No. 6 screw. The uncoated bright finish leaves the aluminum bare for applications where coating thickness or conductivity interference is a concern. Electronics assembly technicians and field service techs use this spacer to maintain consistent standoff distance between a circuit board and a mounting surface or between stacked boards.

This spacer is suited for use in printed circuit board (PCB) assemblies across residential and commercial HVAC control boards, electrical enclosures, and similar low-voltage electronics mounting applications. It is installed wherever a No. 6 fastener is used to stack or elevate a board, providing a defined air gap for heat dissipation and vibration isolation. Its compact 5/16-inch length makes it appropriate for tight enclosure spaces where clearance is limited.

Key Features

• Female unthreaded bore accepts No. 6 screws for straightforward board mounting
• Overall length of 0.3125 inches with tight length tolerance of -0.005 to 0.005 inches for consistent standoff height
• Outside diameter of 0.3750 inches with inside diameter tolerance of 0.000 to 0.010 inches
• Machined from aluminum grade T-3 per QQ-A-225A Comp 2 fastener standard
• Bright uncoated finish - no added coating thickness to affect fit
• Round body shape for uniform load distribution around the mounting hole

Compatibility

Designed as a standard No. 6 screw female unthreaded round circuit board spacer for use in PCB standoff applications requiring a 5/16-inch overall length and 3/8-inch outside diameter in aluminum construction.

Installation Notes

Installation is performed by electronics assembly technicians or qualified service personnel working on control board assemblies. Power down and de-energize all equipment before accessing any circuit board mounting hardware. Use hand tools only when seating aluminum spacers to avoid galling or deforming the bore. Verify standoff height and screw engagement length before final assembly to ensure the board sits flat and secure.