Electro Hardware MMF1811M09F16M4 Hex Standoff M4x0.7

Product Description

The ELECTRO HARDWARE MMF1811M09F16M4 is a male-female hex circuit board standoff machined from 303 stainless steel with a bright, uncoated finish. It features an M4 x 0.7 thread on both the male and female ends and is designed to create a fixed, measured gap between a circuit board and a mating surface or stacked board. The hex body measures 6 mm across flats for wrench engagement, and the overall assembled length is 19.53 mm. Electronics assembly technicians, enclosure builders, and PCB integrators use this type of standoff when precise board spacing, electrical isolation, and a secure mechanical connection are all required in the same fastener.

This standoff is suited for metric PCB assembly applications in industrial electronics, instrumentation enclosures, and control panel builds. The male post threads into a tapped hole or a receiving female standoff, while the female threaded barrel accepts the next board-level fastener or standoff in the stack. The 303 stainless steel construction makes it appropriate for environments where mild corrosion resistance is needed without plating. It is a metric-standard component and fits layouts dimensioned to M4 x 0.7 hole patterns.

Key Features

• Male-female hex configuration allows board stacking and secure panel mounting in a single fastener
• M4 x 0.7 thread on both ends for consistent metric fastener compatibility
• 303 stainless steel base material with bright, uncoated finish for mild corrosion resistance
• 6 mm hex body width across flats allows standard wrench or nut driver installation
• Overall length of 19.53 mm with a 10 mm hex body and 9.53 mm thread length
• Meets QQ-S-763 fastener standard for stainless steel hardware

Compatibility

Designed for use in M4 x 0.7 metric PCB mounting applications. Fits standard metric circuit board layouts requiring a hex standoff with male and female threaded ends at this thread size and body length.

Installation Notes

Installation is typically performed by electronics assembly technicians or electricians during control panel or enclosure builds. Power down and de-energize any board or panel before installing or replacing standoffs to prevent ESD damage or electrical hazard. Use a wrench or nut driver sized to the 6 mm hex flats to achieve a snug fit without overtightening, which can crack PCB mounting holes. Follow applicable enclosure and panel wiring standards such as applicable IPC assembly guidelines for board support hardware.