Electro Hardware P577M12F21-832 Female Hex Standoff 8-32

Product Description

The ELECTRO HARDWARE P577M12F21-832 is a female hex circuit board standoff designed to create fixed spacing between PCBs and mounting surfaces in electronic assemblies. Machined from Grade 2 steel with a zinc-plated finish meeting ASTM B633 Type 1 and QQ-S-633 standards, this standoff provides corrosion resistance and mechanical durability in both industrial and commercial enclosures. It features an 8-32 female thread, a 1-1/4 inch overall length, and a 1/4 inch hex width across flats. Licensed electricians, control board technicians, and electronics assembly professionals install these standoffs when mounting circuit boards inside HVAC control panels, electrical enclosures, and similar equipment.

This standoff suits applications where a PCB must be held at a consistent, secure offset from a panel or secondary board. The hex body allows installation and removal with standard hex drivers or pliers, making it practical for field service work as well as production assembly. Typical use cases include residential and commercial HVAC control board mounting, electrical panel subassemblies, and industrial enclosure PCB installations where a threaded female receiver is needed on both ends of the standoff stack.

Key Features

• 8-32 female thread for standard machine screw compatibility
• 1-1/4 inch overall length with a tight length tolerance of -0.005 to +0.005 inches
• 1/4 inch hex width across flats for wrench or driver engagement
• Grade 2 steel construction with zinc-plated finish
• Meets ASTM B633 Type 1 and QQ-S-633 finish standards
• Hex body shape prevents rotation during installation

Compatibility

Designed as an OEM-style replacement or new-installation standoff for circuit board mounting applications requiring an 8-32 female thread and 1-1/4 inch spacing in standard inch-measurement assemblies.

Installation Notes

Installation is typically performed by licensed electricians or electronics assembly technicians. Always de-energize and lock out the equipment before working inside any electrical enclosure or control panel. Use a properly sized hex driver or wrench on the 1/4 inch flats to avoid deforming the hex body. Follow applicable NEC guidelines for work inside energized enclosures and ensure all fastener threads are fully engaged before applying board-level torque.