Electro Hardware P293M06F16440 Female Hex Standoff 4-40

Product Description

The ELECTRO HARDWARE P293M06F16440 is a female hex circuit board standoff designed to mount and space PCBs within electronic assemblies. Machined from aluminum to the QQ-A-225A Comp 2 specification, it carries a 4-40 thread size with a fully threaded female interior, a 1/4 inch overall length, and a 3/16 inch width across flats. The plain, bright uncoated finish suits standard indoor board-mounting applications. Electronics assembly technicians and field service pros working on control boards in HVAC, electrical, and related equipment use these standoffs to create secure, consistent spacing between boards and enclosure surfaces.

This standoff is suited for residential and commercial electronic control board installations where compact, lightweight aluminum hardware is preferred over steel. The 4-40 thread is a common size across a wide range of PCB mounting applications. With a 1/4 inch thread depth and a short 1/4 inch body, this part is well matched to thin-profile board stacking scenarios and tight enclosure layouts. It ships with a minimum order quantity of 25 pieces, making it practical for service stock or production use.

Key Features

• Female hex body with fully threaded interior, 4-40 thread size
• 1/4 inch overall length with 1/4 inch thread depth for full engagement in compact layouts
• 3/16 inch width across flats for standard hex driver installation
• Aluminum construction per QQ-A-225A Comp 2, Material Grade T3
• Plain bright uncoated finish — no added coating that could affect dimensional tolerance
• Length tolerance of -0.005 to 0.005 inches for consistent board spacing

Compatibility

Designed as a standard 4-40 female hex aluminum circuit board standoff suitable for PCB mounting applications where QQ-A-225A Comp 2 aluminum hardware is specified.

Installation Notes

Install using a hex driver or nut driver sized for 3/16 inch across flats. Power down and de-energize all control boards and enclosures before installing or removing standoffs. Do not overtighten into PCB mounting holes, as aluminum threads can strip if excessive torque is applied. Follow applicable assembly documentation and relevant electrical codes when servicing control board enclosures.