Electro Hardware P437M06F16440 Hex Standoff 4-40 2.5in

Product Description

The ELECTRO HARDWARE P437M06F16440 is a female hex circuit board standoff designed to space and support PCBs within electronic enclosures and control assemblies. Machined from aluminum alloy T3 material with a plain, bright uncoated finish, this standoff accepts a 4-40 threaded fastener and provides a 0.25-inch thread depth on the female end. The overall length is 2.5 inches, and the hex body measures 0.1875 inches across flats. The hex profile allows for wrench engagement during installation, enabling controlled torque without slippage. Electricians, control panel builders, and HVAC technicians commonly use standoffs like this when mounting control boards inside equipment cabinets or enclosures.

This standoff is suited for residential and light commercial applications where 4-40 threaded circuit board mounting is required. It is commonly used in control panel assemblies, HVAC equipment boards, instrumentation enclosures, and similar low-voltage electronic mounting applications. The 2.5-inch OAL provides adequate clearance for board stacking or component routing underneath a mounted PCB. The aluminum construction keeps weight low while maintaining adequate structural rigidity for typical board-mounting loads.

Key Features

• Female 4-40 thread accepts standard 4-40 machine screws for secure board attachment
• 2.5-inch overall length provides generous standoff clearance for component routing
• Hex body at 0.1875 inches across flats allows wrench engagement for precise installation
• Aluminum T3 material offers lightweight construction with corrosion resistance
• Plain, bright uncoated finish suitable for indoor enclosure environments
• Meets QQ-A-225A Comp 2 fastener standard for aluminum hardware

Compatibility

Designed as a standard 4-40 female hex standoff for use in circuit board mounting applications requiring a 2.5-inch standoff height with inch-system fastener threading.

Installation Notes

Installation is typically performed by electricians or electronics technicians during panel assembly or control board service. De-energize all circuits before handling or mounting circuit boards. Use a hex wrench or nut driver sized for 0.1875-inch flats to seat the standoff without over-tightening, which can strip the aluminum threads. Follow applicable NEC guidelines when mounting control boards inside electrical enclosures.