Electro Hardware MMF1827M09F16M4 Hex Standoff M4x0.7

Product Description

The ELECTRO HARDWARE MMF1827M09F16M4 is a male-female hex circuit board standoff designed to create precise, rigid spacing between PCBs and mounting surfaces in electronic assemblies. Machined from 303 stainless steel with a bright uncoated finish, this fastener meets QQ-S-763 standards for stainless steel hardware. It features an M4 x 0.7 male thread on one end and an M4 x 0.7 female thread on the other, with a 27.53 mm overall length and a 6 mm hex body width across flats. Electronics assemblers, panel builders, and electrical enclosure technicians use these standoffs when building or servicing control boards, relay panels, and instrumentation racks.

This standoff is suited for metric-threaded circuit board mounting applications in both light commercial and industrial enclosures. The 18.00 mm hex body length provides stable lateral support between stacked boards or between a board and a chassis. The male thread length measures 9.53 mm and the female thread depth measures 11.10 mm, giving adequate engagement for secure fastening. It is commonly installed in HVAC control panels, electrical distribution enclosures, and instrumentation assemblies where corrosion resistance and dimensional precision are required.

Key Features

• M4 x 0.7 male and female threads for metric circuit board mounting
• 303 stainless steel construction meets QQ-S-763 fastener standard
• Hex body shape allows installation and removal with standard hex drivers or wrenches
• 6 mm width across flats for consistent tool engagement
• Bright uncoated finish resists corrosion without added coating thickness
• Length tolerance of -0.150 to 0.150 mm for precise stacking clearance

Compatibility

Designed as a metric male-female hex standoff for M4-threaded circuit board and chassis mounting applications. Suitable for use wherever a QQ-S-763 compliant stainless steel standoff with M4 x 0.7 threading is specified.

Installation Notes

Installation is performed by panel builders and electronics technicians during board assembly or enclosure build-out. De-energize and lock out all circuits before installing or removing standoffs in live panels. Use a 6 mm hex driver or nut driver for proper engagement; avoid over-tightening, which can stress PCB mounting holes. Verify thread engagement depth against board thickness and chassis clearance before finalizing stack height.