Electro Hardware S1367-M10-F21-K Circuit Board Spacer

Product Description

The ELECTRO HARDWARE S1367-M10-F21-K is a round, female unthreaded circuit board spacer designed to create a fixed standoff between a PCB and a mounting surface or adjacent board. Manufactured from Grade 2 steel with a zinc-plated finish per ASTM B633 and QQ-S-633 Type 1, it provides corrosion resistance in light industrial and commercial electrical enclosures. The spacer measures 0.625 inches in overall length, 0.500 inches in outside diameter, and 0.257 inches in inside diameter, accepting a 1/4-inch screw through its unthreaded bore. It is sized and finished for use wherever a durable, standardized PCB standoff is required in control panels, HVAC equipment boards, or general electrical assemblies.

This spacer is suited for residential and commercial applications involving circuit board mounting within HVAC control enclosures, electrical panels, or industrial equipment. It is installed during board replacement or original assembly when a precise, repeatable standoff height of 5/8 inches is needed between the PCB and the chassis or mounting bracket. The zinc-plated steel construction makes it appropriate for indoor environments where mild corrosion resistance is a factor. Electricians, HVAC technicians, and electronics assembly technicians commonly use this type of hardware during control board service calls or panel builds.

Key Features

• Female unthreaded bore accepts a 1/4-inch screw for straightforward PCB mounting
• Overall length of 0.625 inches provides consistent standoff height between board and chassis
• Grade 2 steel construction meets ASTM B633 and QQ-S-633 Type 1 standards
• Zinc-plated finish adds corrosion resistance for use in light industrial enclosures
• Round body shape with 0.500-inch outside diameter for compact footprint on dense boards
• Inside diameter tolerance of 0.000 to 0.010 inches and length tolerance of -0.005 to 0.005 inches for precise fit

Compatibility

Designed as an OEM-style replacement or assembly-grade spacer for circuit board mounting applications requiring a 1/4-inch screw, 5/8-inch standoff height, and 1/2-inch outside diameter in steel construction.

Installation Notes

Installation is performed by electricians or HVAC technicians during control board service or panel assembly. De-energize and lock out all electrical circuits before handling any circuit board or control enclosure. Verify screw size and standoff height requirements against the board drawing or OEM specification before installation. Do not over-torque mounting screws, as this spacer uses an unthreaded bore and force is transferred through the fastener head and mating hardware only.