Electro Hardware S1407-M10-F21-K Circuit Board Spacer

Product Description

The ELECTRO HARDWARE S1407-M10-F21-K is a round, female unthreaded circuit board spacer manufactured from Grade 2 steel with a zinc-plated finish. It is designed to maintain a fixed standoff distance between a printed circuit board and a mounting surface, preventing electrical shorts and providing structural support within an enclosure. The spacer measures 1.25 inches in overall length, accepts a 1/4 inch screw, and has an outside diameter of 0.5 inches and an inside diameter of 0.257 inches. It meets ASTM B633 and QQ-S-633 Type 1 finish standards. Electricians, control panel builders, and electronics technicians install this type of hardware during board mounting and enclosure assembly work.

This spacer is suited for use in residential and commercial electrical panel assemblies, HVAC control board installations, and industrial enclosure builds wherever a secure, insulated standoff is required between a circuit board and a metal or non-metal mounting surface. The female unthreaded design accepts a standard 1/4 inch fastener passed through the board from above. Its zinc plating provides corrosion resistance in typical indoor panel environments.

Key Features

• Grade 2 steel construction meets ASTM B633 and QQ-S-633 Type 1 finish standards
• Zinc-plated finish provides corrosion resistance for indoor panel applications
• Female unthreaded body accepts 1/4 inch screw for secure through-fastening
• Overall length of 1.25 inches provides consistent standoff between board and mounting surface
• Outside diameter of 0.5 inches with inside diameter of 0.257 inches and tight length tolerance of -0.005 to 0.005 inches
• Round body shape for standard circuit board mounting hole patterns

Compatibility

Designed as a standard OEM-style circuit board spacer for use with 1/4 inch screw fasteners in residential, commercial, and industrial circuit board mounting applications.

Installation Notes

Installation is performed by licensed electricians or qualified panel technicians. De-energize and lockout the enclosure or panel before installing or replacing circuit board hardware. Verify that the screw length used does not extend beyond the spacer in a way that contacts adjacent components or enclosure walls. Follow applicable NEC guidelines for panel and enclosure assembly when securing control boards.