Electro Hardware MMF1315M0616M25 Hex Standoff M2.5

Product Description

The ELECTRO HARDWARE MMF1315M0616M25 is a male-female hex circuit board standoff designed to create precise spacing between PCBs or between a PCB and a mounting surface. Machined from aluminum alloy T3 material and left uncoated with a bright finish, this metric fastener meets the QQ-A-225A Comp 2 material standard. It features an M2.5 x 0.45 thread on both the male and female ends, an overall length of 15.97 mm, and a hex body width across flats of 4.50 mm. Electronics assembly technicians, PCB fabricators, and field service engineers use standoffs like this one when stacking boards or securing control electronics inside HVAC equipment, electrical enclosures, and similar assemblies.

This standoff is suited for metric PCB assembly applications where a lightweight, non-magnetic aluminum fastener is required. Typical installation scenarios include multilayer board stacking, control board mounting inside residential and commercial HVAC equipment, and electronic enclosure builds where consistent board-to-board clearance is critical. The hex body allows standard wrench engagement for controlled installation without slippage.

Key Features

• Male-female configuration allows daisy-chaining of multiple standoffs for multilayer PCB stacking
• M2.5 x 0.45 metric thread on both ends for consistent engagement with standard metric hardware
• Hex body shape (4.50 mm width across flats) enables wrench-driven installation and removal
• Aluminum T3 material provides a lightweight, corrosion-resistant fastener with no magnetic interference
• Bright uncoated finish meets QQ-A-225A Comp 2 material standard
• Length tolerance of -0.150 to 0.150 mm ensures precise board spacing in tight assemblies

Compatibility

Designed as a metric male-female hex standoff for use in PCB assemblies and electronic enclosure mounting applications requiring M2.5 x 0.45 thread engagement.

Installation Notes

Installation is performed by electronics assembly technicians or field service engineers working on control boards. Power down and de-energize the circuit board assembly completely before installing or removing standoffs. Use an appropriately sized hex wrench or nut driver on the 4.50 mm across-flats hex body to drive the male thread into the mating threaded hole - avoid over-torquing aluminum fasteners as thread stripping is irreversible. Follow any applicable IPC assembly standards and equipment manufacturer guidelines for PCB fastener torque.