Electro Hardware MP445M19F16M3 Hex Standoff M3 Nylon

Product Description

The ELECTRO HARDWARE MP445M19F16M3 is a female hex circuit board standoff designed to create accurate, fixed spacing between PCBs or between a board and a mounting surface. Machined from nylon with a plain, uncoated finish, this standoff is fully threaded to an M3 x 0.5 thread size across its entire 23 mm overall length. The hex body measures 4.5 mm width across flats, allowing standard hex tooling for secure installation. With a tensile strength of 16,500 psi, this nylon standoff offers reliable structural integrity in low-load electronic assemblies where non-conductive spacing hardware is required.

This standoff is suited for use in PCB assembly, control panel fabrication, and electronic enclosure builds across a range of industries including HVAC controls, industrial automation, and electrical panel manufacturing. Its fully threaded female bore accepts M3 x 0.5 machine screws from both ends, making it a clean, stackable spacing solution for through-board and surface-mount applications. The nylon construction makes it appropriate where electrical isolation between mounting hardware and board traces is needed.

Key Features

• Fully threaded female bore — M3 x 0.5 thread size throughout entire 23 mm body length
• Nylon material provides electrical isolation and corrosion resistance
• Hex body profile (4.5 mm width across flats) accommodates standard hex drivers and wrenches
• Tensile strength of 16,500 psi for reliable hold in light-duty PCB mounting applications
• Plain, uncoated finish — no coating to crack or flake in sensitive electronic environments
• Meets MIL-P-17091B fastener standard for mil-spec and industrial quality requirements

Compatibility

Designed for use with M3 x 0.5 machine screws in PCB standoff and spacer applications requiring a female hex nylon fastener conforming to MIL-P-17091B.

Installation Notes

Installation of circuit board standoffs is typically performed by electronics assembly technicians or licensed electricians during control board or panel fabrication. Power down all circuits completely before working on any PCB or control enclosure. Use an appropriately sized hex driver or nut driver matching the 4.5 mm across-flats dimension to avoid rounding the hex body. Do not overtighten — nylon fasteners have lower torque tolerance than metal hardware and can crack under excessive force.