Electro Hardware S1335-M07-F16-H Circuit Board Spacer No. 8

Product Description

The ELECTRO HARDWARE S1335-M07-F16-H is a round, female unthreaded circuit board spacer designed to create a fixed standoff gap between a PCB and a mounting surface or between stacked boards. Machined from 18-8 Grade 303 stainless steel to QQ-S-763 specification, it delivers corrosion resistance and dimensional consistency in control board assemblies. The spacer measures 0.125 inches overall length with a 0.171 inch inside diameter and a 0.500 inch outside diameter, sized for No. 8 screw hardware. It ships uncoated, leaving the natural stainless finish intact. Electronics technicians, HVAC controls installers, and panel builders use this spacer when precise PCB standoff height and a clean, non-threaded bore are required.

This spacer is suited for use in residential and light commercial control board assemblies, electrical enclosure builds, and any application requiring a low-profile standoff for No. 8 screw patterns. It is commonly installed during circuit board mounting in HVAC equipment controls, variable-frequency drives, relay panels, and similar electronic subassemblies where vibration isolation and board clearance are critical. The round body and female unthreaded design allow a fastener to pass through cleanly without thread engagement on the spacer itself, making removal and replacement straightforward during field service.

Key Features

• Grade 18-8 303 stainless steel construction meets QQ-S-763 fastener standard for corrosion and heat resistance
• Female unthreaded bore accepts No. 8 screws with 0.171 inch inside diameter and inside diameter tolerance of 0.000 to 0.010 inches
• 0.125 inch overall length with tight length tolerance of -0.005 to 0.005 inches for consistent PCB standoff height
• 0.500 inch outside diameter round body provides stable bearing surface on board or panel
• Uncoated finish — no plating or coating to flake or contaminate sensitive circuit board assemblies
• Inch system of measurement; sold individually with no minimum order restriction beyond single-unit quantity

Compatibility

Designed as a standard-dimension round circuit board spacer for No. 8 screw patterns in PCB mounting and electronic panel assembly applications conforming to inch-measurement hardware systems.

Installation Notes

Installation is performed by electronics technicians or controls installers working on PCB assemblies or electrical enclosures. Always de-energize and lock out the equipment before handling any circuit board or control assembly. Position the spacer between the board and mounting surface, then pass the appropriate No. 8 fastener through the unthreaded bore and secure to the mating hardware. Do not apply thread-locking compounds inside the bore, as this spacer is not threaded.