Electro Hardware P593M12F21-632 Hex Standoff 6-32 1.5in

Product Description

The ELECTRO HARDWARE P593M12F21-632 is a female hex circuit board standoff designed to create fixed spacing between a PCB and a mounting surface or a second board. Machined from Grade 2 steel with a zinc-plated clear chromate finish, it meets ASTM B633 Type 1 and QQ-S-633 standards for corrosion resistance. The standoff measures 1.5 inches overall length with a 0.25-inch width across flats, and threads accept a 6-32 fastener. Electricians, electronics technicians, and panel builders install these during control board assemblies inside HVAC equipment, electrical enclosures, and industrial panels.

This standoff is used wherever a 6-32 threaded female hex spacer is required to elevate and secure a circuit board at a fixed height. Common applications include mounting control boards inside residential and light commercial HVAC units, relay panels, and electronic enclosures. The hex body profile allows standard wrench or nut-driver installation without slipping, which is useful in tight enclosures where finger-tightening alone is insufficient.

Key Features

• Female 6-32 threaded interior accepts standard 6-32 machine screws
• 1.5-inch overall length provides consistent board standoff height
• Hex body profile (0.25 inches across flats) allows wrench or nut-driver installation
• Grade 2 steel construction with zinc-plated clear chromate finish
• Meets ASTM B633 Type 1 and QQ-S-633 corrosion-resistance standards
• Length tolerance held to plus or minus 0.005 inches for consistent stack height

Compatibility

Designed as a standard 6-32 female hex standoff for use in any circuit board mounting application requiring a 1.5-inch OAL spacer with a 0.25-inch hex body in an inch-measurement fastener system.

Installation Notes

Installation is performed by electricians, electronics technicians, or qualified HVAC technicians during panel assembly or control board replacement. De-energize the equipment and discharge any stored capacitive energy before working inside an enclosure. Use a 0.25-inch hex nut driver or open-end wrench to seat the standoff without over-torquing the threaded body. Follow applicable NEC guidelines for enclosure wiring and grounding when reassembling the panel.