Electro Hardware MMF1305M0616M25 Hex Standoff M2.5

Product Description

The ELECTRO HARDWARE MMF1305M0616M25 is a male-female hex circuit board standoff designed to create precise spacing and secure mounting between printed circuit boards and chassis surfaces. Machined from T3-grade aluminum with a bright uncoated finish, it meets the QQ-A-225A Comp 2 material standard. The standoff features an M2.5 x 0.45 thread on both the male and female ends, with an overall length of 10.97 mm (approximately 0.432 inches) and a hex body width across flats of 4.50 mm (approximately 0.177 inches). Electronics assembly technicians, PCB service professionals, and electromechanical installers use this hardware when building or repairing control boards in HVAC equipment, industrial controls, and other electronic enclosures.

This standoff is suited for metric-threaded PCB mounting applications where lightweight, non-ferrous hardware is required. It is commonly used in residential and commercial HVAC control assemblies, industrial electronics enclosures, and any application calling for M2.5 metric thread fasteners with a hex-body profile. The aluminum construction makes it appropriate for environments where weight savings and corrosion resistance matter. It installs in standard hex standoff configurations where one end threads into a board or chassis and the opposite female end accepts a mating male thread or screw.

Key Features

• M2.5 x 0.45 thread on both male and female ends for metric PCB mounting
• T3-grade aluminum construction conforming to QQ-A-225A Comp 2 standard
• Hex body profile, 4.50 mm width across flats, for wrench or nut-driver installation
• Overall length of 10.97 mm with a body length of 7.00 mm and thread depth of 4.80 mm
• Bright uncoated finish - no plating contamination risk in sensitive electronics environments
• Length tolerance of -0.150 to +0.150 mm for consistent board spacing

Compatibility

Designed as an OEM-style replacement or new-installation standoff for circuit board assemblies requiring M2.5 x 0.45 metric-threaded male-female hex standoffs with a 4.50 mm hex body width.

Installation Notes

Installation is typically performed by electronics assembly technicians or electromechanical service professionals. De-energize all boards and equipment before handling PCB hardware. Use a metric nut driver or hex wrench sized to 4.50 mm across flats to seat the standoff without over-torquing, as aluminum threads are susceptible to galling. Verify thread engagement depth is sufficient on both the male pin and female socket ends before securing any mating fastener.