Electro Hardware S1343-M04-F16-H Circuit Board Spacer

Product Description

The ELECTRO HARDWARE S1343-M04-F16-H is a round, female unthreaded circuit board spacer machined from aluminum grade T-3 to QQ-A-225A Comp 2 specification. It measures 0.25 inches overall length with a 0.5 inch outside diameter and a 0.171 inch inside diameter sized for a number 8 screw. The uncoated finish leaves the aluminum bare, which is standard for interior enclosure and PCB standoff applications. Electricians, control panel assemblers, and electronics technicians use this type of spacer to maintain consistent board-to-chassis clearance and prevent contact between circuit board traces and mounting surfaces.

This spacer is suited for use in residential and commercial control panels, HVAC control boards, electrical enclosures, and similar applications where a rigid, non-threaded standoff is needed to position a printed circuit board at a fixed height. The round body and inch-system dimensions are common in North American OEM control board assemblies and aftermarket panel builds. It installs without threading, accepting a number 8 fastener through the 0.171 inch bore.

Key Features

• Female unthreaded design accepts a number 8 screw for straightforward board mounting
• 0.25 inch overall length with tight length tolerance of -0.005 to 0.005 inches for consistent stack height
• 0.5 inch outside diameter with 0.171 inch inside diameter and inside diameter tolerance of 0.000 to 0.010 inches
• Aluminum grade T-3 construction to QQ-A-225A Comp 2 fastener standard
• Uncoated finish suitable for standard indoor panel and PCB enclosure environments
• Round body shape compatible with standard PCB mounting hole patterns

Compatibility

Designed as a standard inch-system female unthreaded round spacer for number 8 screw applications in printed circuit board and control panel assemblies.

Installation Notes

De-energize all circuits and discharge any capacitors before handling or installing circuit board hardware. Use appropriately sized number 8 fasteners to avoid deforming the unthreaded bore. Follow applicable NEC guidelines when working inside electrical enclosures. Inspect the mounting surface and board holes for burrs or debris before seating the spacer to ensure accurate standoff height.