Electro Hardware MMF1841M09F16M4 Hex Standoff M4x0.7

Product Description

The ELECTRO HARDWARE MMF1841M09F16M4 is a male-female hex circuit board standoff designed to create precise, rigid spacing between printed circuit boards and chassis surfaces or between stacked PCB assemblies. Machined from grade 303 stainless steel with a bright uncoated finish, it meets the QQ-S-763 fastener standard. The standoff features an M4x0.7 thread on both the male and female ends, a 25.00 mm hex body, a 6.00 mm width across flats, and an overall length of 34.53 mm. It is a metric-system component suited for electronics assembly, control panel fabrication, and enclosure builds where corrosion resistance and dimensional consistency are required.

This standoff is used wherever circuit boards must be securely mounted with a controlled air gap for airflow, insulation, or mechanical protection. Typical applications include industrial control enclosures, HVAC equipment circuit board assemblies, and electronic equipment panels in commercial and residential installations. The male threaded post threads into an adjacent standoff or tapped hole, while the female threaded bore accepts a machine screw from above, allowing boards to stack or mount cleanly. It is installed by electronics assemblers, controls technicians, and field service professionals working on PCB-based control systems.

Key Features

• M4x0.7 male and female threads for stacking or chassis-mount PCB configurations
• Grade 303 stainless steel construction meets QQ-S-763 standard for corrosion resistance and dimensional integrity
• Hex body profile with 6.00 mm width across flats allows standard wrench or nut driver installation and removal
• Overall length of 34.53 mm with a 25.00 mm body length and length tolerance of -0.150 to 0.150 mm
• Bright uncoated finish is compatible with grounding or continuity requirements where bare metal contact is needed
• Metric dimensioning for use in metric-spec control panel and PCB assembly workflows

Compatibility

Designed as a metric M4x0.7 male-female hex PCB standoff for use in circuit board assemblies, control enclosures, and electronic equipment panels where an M4 thread pattern and 6.00 mm hex body are specified.

Installation Notes

De-energize and lock out all power to the equipment before working on any circuit board assembly or control enclosure. Use a 6 mm wrench or appropriately sized nut driver to seat the hex body without over-torquing, which can strip the M4 threads or crack a PCB mounting hole. Ensure the mating screw thread class matches the M4x0.7 female bore before assembly. Installation should follow applicable equipment manufacturer guidelines and relevant electrical safety codes.