Electro Hardware MP1007M03F21M3 Female Hex Standoff M3

Product Description

The ELECTRO HARDWARE MP1007M03F21M3 is a female hex circuit board standoff designed to create precise spacing between PCBs and mounting surfaces in electronic enclosures and control assemblies. The standoff is fully threaded with an M3 x 0.5 thread size and a 4 mm thread depth, allowing a mating male fastener to engage the full length of the internal thread. At 4 mm overall length with a 6 mm hex body width across flats, this compact fastener suits tight PCB stacks where controlled standoff height is critical. It is installed by electronics technicians, panel builders, and field service techs working on control boards in HVAC equipment, industrial panels, and similar assemblies.

This standoff is suited for metric PCB mounting applications in both residential and commercial electronic control assemblies. Its compact 4 mm body is appropriate for low-profile board stacks where vertical clearance is limited. The hex body profile allows installation and removal with a standard hex wrench or nut driver, making it practical in production and field service environments alike. It is commonly used in control panel fabrication, OEM PCB mounting, and replacement of damaged standoffs on existing circuit board assemblies.

Key Features

• Fully threaded female interior with M3 x 0.5 thread size and 4 mm thread depth for full fastener engagement
• Hex body profile at 6 mm width across flats for positive wrench grip during installation and removal
• Brass construction with zinc plating meets ASTM B633 Type 1 and QQ-B-626 Comp 22 standards for corrosion resistance
• Compact 4 mm overall length suits low-profile PCB stack applications
• Metric M3 x 0.5 thread standard for compatibility with metric fastening systems

Compatibility

Designed as an OEM-style metric standoff for circuit board mounting applications requiring M3 x 0.5 female threaded hex standoffs in electronic control assemblies.

Installation Notes

Always de-energize and discharge any capacitors in the control assembly before handling circuit boards or standoffs. Use a correctly sized hex wrench or nut driver matching the 6 mm width across flats to avoid rounding the hex body. Thread engagement should be verified to be full-depth before torquing to prevent stripping the brass threads. Follow applicable NEC panel wiring guidelines and equipment manufacturer instructions when servicing electronic control assemblies.