Electro Hardware MMF1305M06F16M3 Hex Standoff M3x0.5

Product Description

The ELECTRO HARDWARE MMF1305M06F16M3 is a male-female hex circuit board standoff designed to create precise spacing between stacked PCBs or between a circuit board and a mounting surface. The standoff features an M3x0.5 threaded male post on one end and a corresponding female threaded bore on the other, allowing boards to be fastened together in a column without additional hardware. It is machined from aluminum alloy grade T3, left bright and uncoated, and meets QQ-A-225A Comp 2 material standards. This fastener is sized at 4.5 mm across the hex flats, making it compatible with standard hex drivers. Electronics assembly technicians, PCB fabrication shops, and control panel builders install this type of standoff during board-level assembly.

This standoff is suited for metric-threaded PCB mounting applications in electronics enclosures, industrial control panels, and equipment using M3-threaded hardware. The male-female configuration supports multi-board stacking arrangements common in embedded systems, automation controls, and HVAC or electrical equipment control assemblies. The hex body shape allows for torque application with standard wrenches or hex sockets during assembly. Its compact width across flats of 4.5 mm fits in tight board layouts where clearance is limited.

Key Features

• Male M3x0.5 thread post with female M3x0.5 threaded bore for board-to-board or board-to-chassis stacking
• Hex body shape at 4.5 mm across flats accepts standard hex tools for secure torque application
• Aluminum construction, T3 alloy grade, bright and uncoated finish
• Meets QQ-A-225A Comp 2 material standard
• Overall length of 11.76 mm with a 7.00 mm body and 6.40 mm thread depth
• Length tolerance of -0.150 to 0.150 mm for consistent board spacing

Compatibility

Designed for use in M3x0.5 threaded PCB standoff applications. Suitable for circuit board assemblies requiring metric male-female hex spacers with a 4.5 mm hex body width.

Installation Notes

Installation is typically performed by electronics assembly technicians or control panel builders during PCB mounting. Power down and de-energize any circuit board assembly fully before installing or removing standoffs. Use a hex wrench or socket sized for 4.5 mm across flats to avoid rounding the hex body. Do not overtighten, as aluminum threads can strip or seize if torque is excessive.