Electro Hardware MP405M06F16M3 Hex Standoff M3x0.5

Product Description

The ELECTRO HARDWARE MP405M06F16M3 is a female hex circuit board standoff designed to create precise, stable spacing between PCBs and mounting surfaces in electronic assemblies. Machined from aluminum to the QQ-A-225A Comp 2 standard, this fully threaded standoff accepts an M3 x 0.5 fastener and provides a 3 mm thread depth throughout its 3 mm overall length. The hexagonal body measures 4.5 mm across the flats, allowing standard hex tooling for torque-controlled installation. With a plain, bright uncoated finish and a T3 material grade, it suits light-duty electronic enclosures and control board mounting applications where corrosion from severe environments is not a primary concern.

This standoff is used in residential and light commercial electronic assemblies, control panel builds, and PCB stacking configurations. HVAC technicians, electricians, and panel fabricators encounter this hardware when replacing or mounting control boards in equipment enclosures. Its compact 3 mm overall length makes it appropriate for tight-clearance board-to-board or board-to-chassis installations where minimal stack height is required. It is sold individually per piece, with a minimum order quantity of 10 units.

Key Features

• Female hex body with M3 x 0.5 internal thread, fully threaded to 3 mm depth
• 3 mm overall length for low-profile PCB standoff applications
• 4.5 mm width across flats for standard hex wrench installation
• Aluminum construction, T3 material grade, plain bright uncoated finish
• Meets QQ-A-225A Comp 2 fastener standard
• Length tolerance of -0.13 to 0.13 mm for consistent stack height

Compatibility

Designed as an OEM-style hardware component for circuit board mounting applications requiring M3 x 0.5 metric thread standoffs in aluminum hex form.

Installation Notes

Always power down and de-energize equipment before servicing control boards or replacing standoff hardware. Use an appropriately sized hex tool to seat the standoff without stripping the aluminum threads. Avoid over-torquing, as aluminum fasteners are more susceptible to thread damage than steel equivalents. Follow applicable NEC or equipment manufacturer guidelines when working inside electrical enclosures.