Electro Hardware P293M03F21440 Hex Standoff 4-40 1/4 in

Product Description

The ELECTRO HARDWARE P293M03F21440 is a female hex circuit board standoff designed to mount and space printed circuit boards within enclosures, control panels, and electronic assemblies. This standoff features a 4-40 thread size with a fully threaded female interior and a 1/4 inch thread depth. The hex body measures 3/16 inch across flats and an overall length of 1/4 inch. Constructed from brass with a clear zinc chromate finish meeting ASTM B633 Type 1 and QQ-B-626 Comp 22 standards, it provides corrosion resistance appropriate for industrial and commercial electronic applications. Electricians, control panel builders, and electronics technicians use these standoffs during board installation and enclosure assembly.

This standoff is suited for use in residential and commercial control panel assemblies, HVAC system boards, electrical enclosures, and general electronics mounting applications where 4-40 threaded brass hardware is specified. The hex body allows for easy installation and removal with standard hex drivers or wrenches. A minimum order quantity of 10 units applies, making this part appropriate for service stock or panel builds requiring consistent hardware across multiple boards.

Key Features

• Female 4-40 threaded interior with 1/4 inch full thread depth for secure board fastening
• Hex body profile at 3/16 inch across flats allows wrench or driver engagement
• Brass construction with clear zinc chromate finish for corrosion resistance
• Meets ASTM B633 Type 1 and QQ-B-626 Comp 22 fastener standards
• Compact 1/4 inch overall length suits tight PCB spacing requirements
• Length tolerance held to -0.005 to 0.005 inch for consistent board standoff height

Compatibility

Designed as an OEM-style replacement or service stock standoff for applications requiring 4-40 female threaded brass hex standoffs with a 1/4 inch overall length in circuit board mounting configurations.

Installation Notes

Installation is typically performed by licensed electricians or electronics technicians during panel assembly or board replacement. De-energize all equipment and discharge any stored energy before working inside enclosures. Use an appropriately sized hex driver or nutdriver to engage the 3/16 inch across-flats body without over-torquing the brass threads. Follow applicable NEC guidelines for enclosure work and consult the board or enclosure manufacturer documentation for specified standoff height and thread requirements.