Electro Hardware MMF1309M0616M25 Hex Board Standoff M2.5

Product Description

The ELECTRO HARDWARE MMF1309M0616M25 is an aluminum male-female hex circuit board standoff designed to create precise spacing between PCBs and mounting surfaces in electronic assemblies. It features an M2.5 x 0.45 thread configuration with a male thread on one end and a female threaded bore on the other, allowing boards to be stacked or mounted with a defined gap. The overall length is 12.97 mm (approximately 0.511 inches), with a hex body width across flats of 4.50 mm (approximately 0.177 inches). Material is uncoated aluminum conforming to QQ-A-225A Comp 2. Technicians and assembly personnel use this standoff when precise board-to-board or board-to-chassis clearance is required.

This standoff suits applications in electronic control assemblies, HVAC control boards, industrial automation panels, and general PCB mounting scenarios where metric M2.5 hardware is specified. The hex body shape allows wrench engagement for secure installation without marring adjacent surfaces. The uncoated aluminum finish keeps the component lightweight and suitable for non-corrosive indoor environments. It is appropriate for both original equipment manufacturing and field-service replacement of failed or stripped standoffs in existing assemblies.

Key Features

• M2.5 x 0.45 thread on both male and female ends for metric PCB stacking applications
• Overall length of 12.97 mm (approximately 0.511 inches) with a body length of 9.00 mm
• Hex body profile with 4.50 mm width across flats for wrench-driven installation
• Uncoated aluminum construction conforming to QQ-A-225A Comp 2 material standard
• Length tolerance of -0.150 to 0.150 mm for consistent board spacing in tight assemblies
• Thread depth of 4.80 mm on the female end with a thread length of 3.97 mm on the male end

Compatibility

Designed as a metric M2.5 x 0.45 male-female hex standoff suitable for PCB assemblies and enclosures specifying M2.5 hardware with a 4.5 mm hex body. Verify thread pitch and overall length requirements against your specific assembly before ordering.

Installation Notes

Installation is typically performed by electronics assembly technicians or field service personnel using an appropriately sized metric hex wrench or nut driver. Power down all equipment completely before servicing any circuit board assembly. Do not overtighten the standoff, as aluminum threads can strip or gall; use consistent hand-torque and verify engagement before applying tool force. Minimum order quantity is 10 units per order.