Electro Hardware S873-M07-F16-H Circuit Board Spacer

Product Description

The ELECTRO HARDWARE S873-M07-F16-H is a round, female unthreaded circuit board spacer machined from 18-8 grade 303 stainless steel and supplied uncoated. Designed for Number 8 screw mounting, this spacer measures 1.5 inches in overall length, with an inside diameter of 0.171 inches and an outside diameter of 0.3125 inches. The stainless steel construction meets QQ-S-763 fastener standards, making it suitable for applications where corrosion resistance and dimensional precision are required. Electricians, electronics technicians, and HVAC control board installers use spacers like this to maintain consistent standoff clearance between a circuit board and its mounting surface.

This spacer fits into standard inch-measurement fastener systems and is appropriate for residential and light commercial control board assemblies, enclosure panel mounting, and PCB standoff applications. It is suited to environments where stainless steel is specified for corrosion resistance or where compliance with QQ-S-763 standards is required. The female unthreaded bore accepts a Number 8 screw passed through from the board side, allowing secure, repeatable standoff spacing in control board installations.

Key Features

• 18-8 grade 303 stainless steel construction meets QQ-S-763 fastener standard
• Female unthreaded bore sized for Number 8 screw mounting
• Overall length of 1.5 inches provides consistent PCB standoff clearance
• Inside diameter of 0.171 inches with a tolerance of 0.000 to 0.010 inches
• Outside diameter of 0.3125 inches in a round body profile
• Uncoated finish - no plating or coating to affect dimensional stack-up

Compatibility

Designed as an OEM-style replacement or new-installation spacer for circuit board assemblies using Number 8 inch-system screw hardware.

Installation Notes

Installation is performed by electricians or electronics technicians during control board mounting or replacement. Shut off all power to the enclosure or control panel before removing or installing circuit boards and hardware. Use calibrated fastener tooling to avoid over-torquing into unthreaded bores. Follow applicable NEC guidelines when working inside electrical enclosures.