Electro Hardware P577M01F21-832 Round Female Standoff

Product Description

The ELECTRO HARDWARE P577M01F21-832 is a round female standoff designed for use in panel assemblies, electronic enclosures, and control board mounting applications. This standoff features an 8-32 thread size with a fully threaded interior, a 1 inch thread depth, and a 1-1/4 inch overall length. The body is machined from brass and finished with a zinc plating that meets ASTM B633 Type 1 and QQ-B-626 Comp 22 standards. At 1/4 inch outside diameter, it fits compact spacing requirements common in HVAC control boards, electrical panels, and instrumentation racks. Electricians, panel builders, and controls technicians install these fasteners when securing PCBs or standoff-mounted components inside enclosures.

This female standoff is suited for residential and commercial electrical and electronic assembly work. Typical applications include mounting printed circuit boards to chassis, spacing panels within enclosures, and providing threaded attachment points in control system builds. The 8-32 thread is one of the most common machine screw sizes in North American control and electronics work, making this standoff a standard fit across a wide range of panel and board mounting scenarios.

Key Features

• 8-32 fully threaded female interior with 1 inch thread depth for secure fastener engagement
• 1-1/4 inch overall length and 1/4 inch outside diameter for compact panel and PCB spacing
• Brass construction provides corrosion resistance and reliable thread integrity
• Zinc-plated finish meets ASTM B633 Type 1 and QQ-B-626 Comp 22 standards
• Round body shape ensures consistent torque transfer and clean installation
• Inch measurement system; length tolerance of -0.005 to 0.005 inches

Compatibility

Designed for use with 8-32 machine screws in standard inch-series panel mounting and PCB standoff applications across electrical, electronic, and control enclosure assemblies.

Installation Notes

Electricians and panel builders install female standoffs using a hex key, nut driver, or appropriate socket sized to the standoff body. Power down all circuits and discharge any capacitors before working inside an enclosure. Thread engagement should be confirmed to be full depth before torquing any mating fastener. Follow applicable NEC requirements for enclosure work and equipment mounting when installing in electrical panels or control cabinets.