Electro Hardware S1067-M10-F21-J Circuit Board Spacer

Product Description

The ELECTRO HARDWARE S1067-M10-F21-J is a round, female unthreaded circuit board spacer designed for Number 12 screw applications. It provides a fixed standoff between a circuit board and a mounting surface, maintaining clearance and preventing electrical contact with enclosures or chassis. The spacer measures 5/16 inches overall length (0.3125 inches) with a 3/8 inches outside diameter (0.3750 inches) and a 0.219 inches inside diameter. Constructed from Grade 2 steel with a zinc-plated finish per ASTM B633 and QQ-S-633 Type 1, it offers corrosion resistance suited for indoor electronic assemblies. Licensed electricians, electronics technicians, and industrial maintenance personnel are the primary installers.

This spacer is used wherever printed circuit boards require precise standoff spacing from a mounting panel or enclosure wall. Typical applications include control boards in HVAC equipment, electrical enclosures, industrial controls, and other electronic assemblies requiring a compact, round spacer profile. Its female unthreaded design accepts a Number 12 fastener passing through the inside diameter, making it straightforward to install in standard board mounting configurations.

Key Features

• Female unthreaded body accepts Number 12 fasteners for clean board standoff mounting
• 5/16 inches overall length with tight length tolerance of -0.005 to 0.005 inches for consistent stack height
• 0.219 inches inside diameter with tolerance of 0.000 to 0.010 inches for reliable fastener fit
• 3/8 inches outside diameter in a round body profile for compact footprint
• Grade 2 steel construction with zinc-plated finish per ASTM B633 and QQ-S-633 Type 1 for corrosion resistance

Compatibility

Designed as an OEM-style replacement or standard-fit spacer for circuit board mounting applications requiring a Number 12 screw, female unthreaded, round steel spacer with a 5/16 inches standoff height.

Installation Notes

Installation is typically performed by licensed electricians or electronics technicians. Always de-energize the equipment and discharge any stored electrical energy before working on circuit board assemblies. Position the spacer between the board and the mounting surface, align the fastener through the inside diameter, and fasten according to the board manufacturer's mounting guidance. Follow applicable NEC requirements for electrical enclosure work.