Electro Hardware P517M10F21-1032 Round Female Standoff

Product Description

The ELECTRO HARDWARE P517M10F21-1032 is a round female standoff designed for use in panel assemblies, electrical enclosures, and mechanical subassemblies where threaded spacers are required. This fully threaded steel standoff features a 10-32 thread size, an overall length of 0.3125 inches (5/16 inches), and an outside diameter of 0.25 inches (1/4 inches). The zinc-plated finish meets ASTM B633 Type 1 and QQ-S-633 standards, providing corrosion resistance suitable for indoor industrial and commercial applications. Electricians, panel builders, and mechanical assemblers install these standoffs to create precise spacing between boards, brackets, or enclosure components.

This standoff is suited for use in electrical control panels, HVAC control board assemblies, printed circuit board mounting, and general mechanical assembly work. The Grade 2 steel construction and zinc plating make it appropriate for indoor applications where moderate corrosion resistance is needed. The 10-32 thread size is a common fastener specification found throughout light industrial and electronic assembly work, making this standoff a practical fit for service shops and production environments alike.

Key Features

• Fully threaded female interior accepts 10-32 fasteners
• Round body profile at 0.25 inches outside diameter for consistent fitment in standard clearance holes
• Zinc-plated steel construction meets ASTM B633 Type 1 and QQ-S-633 finish standards
• Grade 2 steel provides reliable strength for light mechanical fastening applications
• Compact overall length of 0.3125 inches (5/16 inches) suits tight-clearance panel work
• Length tolerance of -0.005 to 0.005 inches ensures dimensional consistency

Compatibility

Designed as an OEM-style replacement or service standoff for applications requiring a 10-32 fully threaded female round standoff with a 5/16-inch overall length and 1/4-inch outside diameter.

Installation Notes

Installation is typically performed by electricians, panel builders, or mechanical assemblers using standard hand tools. Always de-energize and lock out any electrical panel or enclosure before installing or replacing standoffs. Verify thread engagement depth against the mating fastener length before final assembly to avoid stripping or under-engagement. Follow applicable NEC guidelines when working inside electrical enclosures.