Electro Hardware MP1005M03F21M3 Female Hex Standoff M3

Product Description

The ELECTRO HARDWARE MP1005M03F21M3 is a female hex circuit board standoff designed to create precise spacing and provide threaded mounting points on printed circuit boards and electronic assemblies. Machined from brass with a zinc-plated finish, this standoff features an M3 x 0.5 female thread that runs the full 3 mm body length, offering maximum thread engagement in a compact form. The hexagonal body measures 6 mm across the flats, allowing standard hex tooling for installation and removal. This type of hardware is installed by electronics assemblers, electrical technicians, and PCB assembly professionals working in industrial control panels, HVAC control boards, and similar electronic enclosures.

This standoff is suited for metric-threaded circuit board mounting applications where a fully threaded female receptacle is required. Typical use cases include securing PCBs to chassis surfaces, stacking boards at a fixed distance, or providing a threaded anchor point in tight-clearance assemblies. The short 3 mm overall length makes it appropriate for low-profile board mounting where vertical space is limited. Its zinc-plated brass construction suits both indoor electronic panels and lightly corrosive environments where conductivity and corrosion resistance are both considerations.

Key Features

• Fully threaded female hex body — M3 x 0.5 thread, 3 mm thread depth for maximum engagement
• Brass base material with zinc-plated finish meeting ASTM B633 Type 1 and QQ-B-626 Comp 22 standards
• Hex body shape, 6 mm width across flats — compatible with standard metric hex drivers and wrenches
• Compact 3 mm overall length suits low-profile and space-constrained PCB mounting applications
• Length tolerance of -0.13 to 0.13 mm supports precise, repeatable board spacing

Compatibility

Designed for use in metric M3 x 0.5 threaded circuit board mounting applications. Fits assemblies requiring a fully threaded female hex standoff with a 6 mm hex body profile.

Installation Notes

Install and remove using a standard 6 mm hex driver or wrench. Ensure mating screws or posts are M3 x 0.5 metric thread before assembly to avoid cross-threading the brass body. Power down and de-energize any circuit board or panel completely before installing or adjusting standoffs. Do not overtighten — brass hardware is subject to thread damage if excess torque is applied during installation.