Electro Hardware MMF1315M0916M25 Hex Standoff M2.5

Product Description

The ELECTRO HARDWARE MMF1315M0916M25 is a male-female hex circuit board standoff designed to mount and space printed circuit boards at a fixed distance from a panel or from one another. Machined from 303 stainless steel with a bright uncoated finish, this standoff meets the QQ-S-763 fastener standard. The metric M2.5 x 0.45 thread runs on both ends - a male pin on one side and a female threaded bore on the other - allowing boards to stack or attach to a chassis without additional hardware. Overall length is 15.97 mm (0.629 inches), body length is 12.00 mm (0.472 inches), and the hex body measures 4.50 mm (0.177 inches) across flats. Electronics assemblers and electrical technicians install this fastener in control panels, PCB assemblies, and enclosures.

This standoff is suited for metric circuit board assemblies in residential and commercial control systems, electronic enclosures, and industrial PCB mounting applications. The male-female configuration supports multi-board stacking arrangements, securing boards at a defined standoff height while allowing a mating fastener to thread onto the male end. It is appropriate wherever an M2.5 x 0.45 metric thread and a compact hex profile are required in an electronics assembly environment.

Key Features

• Male-female hex configuration supports PCB stacking and chassis mounting in a single fastener
• Machined from 303 stainless steel per QQ-S-763 for corrosion resistance and dimensional consistency
• M2.5 x 0.45 metric thread on both ends with a thread depth of 4.80 mm (0.189 inches) on the female side and thread length of 3.97 mm (0.156 inches) on the male pin
• Hex body profile - 4.50 mm (0.177 inches) across flats - allows standard hex driver installation
• Bright uncoated finish maintains material conductivity and avoids coating thickness variation
• Length tolerance of -0.150 mm to +0.150 mm ensures consistent board spacing

Compatibility

Designed as an OEM-style metric standoff for PCB assemblies, electronic enclosures, and control panels requiring an M2.5 x 0.45 male-female hex fastener.

Installation Notes

Installation is performed by electronics assemblers or licensed electricians working on control panel and PCB assemblies. De-energize all circuits and discharge any capacitors before handling circuit boards or installing standoffs. Use an appropriately sized hex driver or nut driver matched to the 4.50 mm hex profile - do not use pliers, which can deform the hex body. Follow applicable assembly drawings and torque guidelines provided by the equipment manufacturer; no installation torque value is specified for this fastener.