Electro Hardware P317M19F16440 Hex Standoff 4-40 5/8in

Product Description

The ELECTRO HARDWARE P317M19F16440 is a female hex circuit board standoff designed to space and secure printed circuit boards within electronic assemblies. Molded from nylon with a plain, uncoated finish, this standoff accepts a 4-40 thread and measures 0.625 inches in overall length with a 3/16-inch (0.1875 inches) width across flats. The hex body shape allows for wrench engagement during installation. It is fully threaded with a thread depth of 5/8 inches, making it suitable for through-mount PCB applications where non-conductive spacing hardware is required. Technicians working on control boards in HVAC equipment, electrical panels, or other electronic assemblies will find this standoff appropriate for low-stress mounting applications.

This standoff is used wherever a non-metallic, electrically isolating spacer is needed between a circuit board and a mounting surface or between stacked boards. Its nylon construction is well suited to residential and light commercial control board assemblies, enclosures, and retrofit installations where metal standoffs could introduce unwanted conductivity or galvanic corrosion concerns. It meets MIL-P-17091B fastener standards, making it appropriate for applications that reference military-specification hardware. Minimum order quantity is 10 pieces.

Key Features

• Female 4-40 thread, fully threaded through the 5/8-inch body length
• Hex body profile allows wrench or nut-driver installation without slippage
• Nylon material provides electrical isolation between PCB and mounting surface
• Plain, bright uncoated finish — no plating to crack or flake in service
• Meets MIL-P-17091B fastener standard
• Tensile strength rated at 16,500 psi

Compatibility

Designed as an OEM-style replacement or service hardware for circuit board mounting applications requiring a 4-40 female hex standoff with a 5/8-inch overall length and nylon construction.

Installation Notes

Installation is performed by hand or with a small hex wrench or nut driver sized for 3/16-inch across flats. De-energize and discharge any equipment before working on circuit boards or control assemblies. Avoid overtightening nylon standoffs, as the material is subject to thread stripping under excessive torque. Follow applicable NEC guidelines when servicing control boards inside electrical enclosures.