Electro Hardware MMF1809M06F16M4 Hex Standoff M4x0.7

Product Description

The ELECTRO HARDWARE MMF1809M06F16M4 is a male-female hex circuit board standoff designed to create precise spacing and secure mechanical connections between stacked PCBs or between a PCB and an enclosure panel. The standoff features an M4 x 0.7 thread on both the male and female ends with an overall length of 18.53 mm (0.73 inches). The hexagonal body measures 6 mm (0.24 inches) across flats, allowing installation and removal with standard hex drivers or wrenches. Constructed from uncoated aluminum alloy grade T3 and certified to QQ-A-225A Comp 2, it delivers a lightweight, corrosion-resistant solution for electronics assembly applications. Licensed electronics technicians, PCB assembly professionals, and enclosure builders are the primary installers.

This standoff is suited for metric-threaded circuit board assemblies in industrial controls, HVAC control boards, electrical enclosures, and commercial electronics manufacturing. The male-female configuration allows multiple standoffs to be stacked in series when additional board separation is required. With a body length of 9.00 mm and a thread length of 9.53 mm on the male post, the part provides reliable thread engagement depth appropriate for M4-tapped board spacers and threaded mounting holes in standard PCB applications. Its compact hex profile fits into high-density board layouts where space between fasteners is limited.

Key Features

• Male-female configuration supports stacking of multiple standoffs for variable board spacing
• M4 x 0.7 metric thread on both ends ensures compatibility with standard metric PCB hardware
• 6 mm hex body width allows installation with common hex drivers, nut drivers, or wrenches
• Aluminum T3 alloy construction provides a lightweight alternative to brass or steel standoffs
• Bright uncoated finish meets QQ-A-225A Comp 2 material standard
• Length tolerance of -0.150 to 0.150 mm ensures consistent board-to-board spacing in precision assemblies

Compatibility

Designed as a metric-thread replacement or new-install standoff for circuit board assemblies using M4 x 0.7 threaded hardware, including PCB stacking applications in industrial control panels and electronics enclosures.

Installation Notes

Install and remove using a hex driver or open-end wrench sized for a 6 mm across-flats profile. De-energize all circuits and discharge any capacitors before working inside control enclosures or on live boards. Avoid over-torquing aluminum standoffs, as the alloy is softer than steel and susceptible to thread stripping under excessive force. Follow applicable electrical codes and manufacturer assembly guidelines for PCB mounting hardware torque practices.