Electro Hardware S1071-M04-F16-I Circuit Board Spacer

Product Description

The ELECTRO HARDWARE S1071-M04-F16-I is a round, female unthreaded circuit board spacer machined from aluminum grade T-3 to the QQ-A-225A Comp 2 fastener standard. It has an overall length of 0.375 inches, an outside diameter of 0.375 inches, and an inside diameter of 0.194 inches, sized for No. 10 screws. The uncoated finish leaves the aluminum surface bare for applications where coating thickness or conductivity at the mounting point is a concern. Electricians, electronics technicians, and PCB assembly professionals use this spacer to create precise standoff clearance between a circuit board and a mounting surface or chassis panel.

This spacer is suited for light commercial and industrial PCB mounting applications where a No. 10 fastener is the specified screw size. It is installed in a through-hole or clearance hole in the board and held in place by the mating screw, establishing a fixed gap between the board and the substrate. Its round body and female unthreaded bore allow the screw to pass through or terminate within the spacer without engaging internal threads. The compact 0.375-inch length makes it appropriate for low-profile board stacking or panel-mount assemblies where minimal standoff height is required.

Key Features

• Aluminum grade T-3 construction per QQ-A-225A Comp 2 fastener standard
• Female unthreaded bore accepts No. 10 screws with 0.194-inch inside diameter
• 0.375-inch overall length with a tight length tolerance of -0.005 to 0.005 inches
• Inside diameter tolerance of 0.000 to 0.010 inches for consistent screw fit
• Uncoated finish - no added coating thickness to interfere with fitment
• Round body shape for straightforward through-hole or clearance-hole installation

Compatibility

Designed as an OEM-style replacement or standard-use spacer for circuit board assemblies requiring a No. 10 screw, 0.375-inch OAL, female unthreaded round spacer in aluminum.

Installation Notes

Installation is typically performed by electronics technicians or electricians during PCB assembly or panel wiring. De-energize the board and discharge any stored voltage before handling or mounting circuit board hardware. Use a hand screwdriver or torque-limited driver appropriate for No. 10 fasteners to avoid over-stressing the unthreaded bore. Verify hole clearance in the PCB matches the 0.375-inch outside diameter before pressing or inserting the spacer.