Electro Hardware S1375-M04-F16-I Circuit Board Spacer

Product Description

The ELECTRO HARDWARE S1375-M04-F16-I is a round, female unthreaded circuit board spacer machined from aluminum alloy grade T-3 to the QQ-A-225A Comp 2 fastener standard. It measures 0.75 inches overall length with a 0.5 inch outside diameter and a 0.194 inch inside diameter. The uncoated finish and inch-system dimensions make it a straightforward, no-prep hardware component for PCB mounting applications. Electricians, electronics technicians, and control board assemblers use this type of spacer to maintain precise standoff clearance between a circuit board and a mounting surface or between stacked boards in a control enclosure.

This spacer is suited for residential and commercial applications wherever a No. 10 screw is used to mount a circuit board. Common install scenarios include HVAC control boards, industrial enclosures, electrical panel subassemblies, and OEM equipment builds. Its round body shape and female unthreaded bore accept a No. 10 fastener passed through from the mounting surface, holding the PCB at a fixed, consistent standoff height across the assembly.

Key Features

• Female unthreaded round body accepts No. 10 screw for straightforward PCB standoff mounting
• 0.75 inch overall length with tight length tolerance of -0.005 to 0.005 inches
• 0.194 inch inside diameter with inside diameter tolerance of 0.000 to 0.010 inches
• 0.5 inch outside diameter for consistent, stable board support
• Aluminum grade T-3, manufactured to QQ-A-225A Comp 2 fastener standard
• Uncoated finish - no additional surface prep required before installation

Compatibility

Designed as a standard inch-system PCB standoff spacer for No. 10 screw applications in control board assemblies, electrical enclosures, and OEM equipment builds.

Installation Notes

Installation is performed by electricians or electronics technicians during control board assembly or field replacement. De-energize all circuits and verify zero voltage before handling any circuit board or its mounting hardware. Use appropriately sized hand tools and avoid over-torquing fasteners through the unthreaded bore, as the female bore is not tapped and relies on the mating fastener for retention. Follow applicable NEC guidelines when working inside energized enclosures.