Electro Hardware MP1005M03F21M4 Hex Standoff M4x0.7

Product Description

The ELECTRO HARDWARE MP1005M03F21M4 is a female hex circuit board standoff designed to create precise spacing between PCBs and mounting surfaces in electronic assemblies. Machined from brass with a zinc-plated finish that meets ASTM B633 Type 1 and QQ-B-626 Comp 22 standards, this standoff provides reliable electrical isolation and mechanical support in control boards, HVAC control modules, and similar low-voltage electronic enclosures. The fully threaded female interior accepts M4 x 0.7 fasteners at both ends, with a 3 mm thread depth that matches the 3 mm overall length. The hexagonal body profile allows wrench tightening for secure, repeatable installation without slipping.

This standoff is suited for residential and light commercial electronic control board assemblies where compact spacing is required. With a 3 mm overall body length and 6 mm width across flats, it is well suited to densely populated PCB layouts where clearance is limited. HVAC technicians, electricians, and electronics assembly technicians encounter this type of hardware when servicing or replacing control boards in furnaces, air handlers, thermostats, and other microprocessor-based field equipment. The metric M4 thread standard is common across a wide range of OEM control board platforms.

Key Features

• Fully threaded female interior with M4 x 0.7 thread size and 3 mm thread depth
• Brass construction with zinc-plated finish per ASTM B633 Type 1 and QQ-B-626 Comp 22
• Hexagonal body shape allows standard wrench installation, 6 mm width across flats
• Compact 3 mm overall length for tight PCB stack spacing
• Length tolerance held to -0.13 to 0.13 mm for consistent board standoff height
• Metric measurement system; UNSPSC Code 31161816

Compatibility

Designed as a standard metric female hex standoff for use in circuit board assemblies requiring M4 x 0.7 thread engagement and 3 mm spacing.

Installation Notes

Installation is typically performed by electronics technicians or licensed electricians working on control board assemblies. Power down and de-energize the control circuit completely before handling any PCB hardware. Use an appropriately sized hex wrench or nut driver sized to the 6 mm flat-to-flat dimension to tighten without over-torquing the brass body. Follow applicable NEC guidelines and OEM service documentation when replacing or repositioning control board standoffs inside equipment enclosures.