Electro Hardware MMX1645M06MSC-1 Hex Standoff M5x0.8

Product Description

The ELECTRO HARDWARE MMX1645M06MSC-1 is a male-male hex circuit board standoff designed to create fixed spacing between PCBs, panels, and enclosure surfaces in electronic assemblies. Machined from aluminum alloy Grade T3 with a clear finish, this standoff features an M5 x 0.8 thread on both ends and a 25 mm overall length. The hexagonal body measures 8 mm width across flats, allowing standard wrench or socket installation. It meets the QQ-A-225A Comp 2 fastener standard, making it suitable for builds that specify that certification. Electronic assembly technicians and panel builders use this hardware in circuit board mounting applications across industrial, commercial, and control-panel environments.

This standoff is used wherever rigid board-to-board or board-to-chassis spacing is required. Typical applications include mounting control boards, relay panels, and PCB assemblies inside electrical enclosures, HVAC control cabinets, and industrial automation panels. The metric M5 x 0.8 threading is common in equipment manufactured to metric fastener specifications. The clear aluminum finish provides corrosion resistance suitable for indoor enclosure environments. The compact hex body profile keeps mounting footprint minimal while still allowing installation with standard metric wrenches.

Key Features

• Male-male hex standoff provides fixed, rigid PCB spacing with threaded engagement on both ends
• M5 x 0.8 metric thread on both ends with thread lengths of 10 mm, 9 mm, and 9.5 mm
• 25 mm overall body length with a length tolerance of -0.150 to 0.150 mm
• 8 mm width across flats for wrench installation
• Aluminum Grade T3 construction with clear finish for lightweight corrosion resistance
• Meets QQ-A-225A Comp 2 fastener standard

Compatibility

Designed as a metric M5 x 0.8 male-male hex standoff for use in circuit board mounting applications requiring 25 mm spacing and compliance with the QQ-A-225A Comp 2 standard.

Installation Notes

Installation is performed by electronic assembly technicians or panel builders. Power down and de-energize all boards and enclosures before working with standoff hardware. Use a standard metric wrench or socket sized to 8 mm across flats to tighten. Avoid overtightening, which can strip the aluminum threads or crack PCB mounting holes.