Electro Hardware S1423-M04-F16-K Circuit Board Spacer

Product Description

The ELECTRO HARDWARE S1423-M04-F16-K is a round, female unthreaded circuit board spacer machined from aluminum alloy grade T-3. It accepts a 1/4 inch screw, has an overall length of 1.5 inches, an inside diameter of 0.257 inches, and an outside diameter of 0.5 inches. The spacer is uncoated and manufactured to fastener standard QQ-A-225A Comp 2. It is used to create precise standoff distances between a printed circuit board and a mounting surface or between stacked boards. Electricians, electronics technicians, and HVAC control board installers working on panel assemblies and PCB mounting applications are the typical end users.

This spacer suits residential and commercial electronic assembly work where a consistent, rigid standoff is required between a circuit board and a chassis, enclosure panel, or secondary board layer. The female unthreaded bore accepts a 1/4 inch fastener passed through from the opposite side and secured with a mating thread-forming screw. It is appropriate for low-vibration indoor panel environments where aluminum construction is acceptable and coating or anodizing is not required.

Key Features

• Female unthreaded bore sized for 1/4 inch screw clearance
• Overall length of 1.5 inches provides positive standoff spacing
• Outside diameter of 0.5 inches with inside diameter of 0.257 inches
• Aluminum grade T-3 construction per fastener standard QQ-A-225A Comp 2
• Uncoated finish suitable for dry indoor panel environments
• Inside diameter tolerance of 0.000 to 0.010 inches and length tolerance of -0.005 to 0.005 inches for consistent fitment

Compatibility

Designed as an OEM-style replacement or new-install standoff spacer for circuit board mounting applications requiring a 1/4 inch screw clearance, 0.5 inch round body, and 1.5 inch standoff height.

Installation Notes

Installation is performed by electronics technicians or trade professionals during PCB assembly or control board servicing. Always de-energize the equipment and discharge any capacitors before handling circuit boards or installing standoff hardware. Use the correct 1/4 inch fastener and avoid over-torquing, as the unthreaded aluminum bore can deform under excessive clamping force. Follow applicable NEC guidelines when installing or servicing energized panel assemblies.