Electro Hardware MP437M09F16M2.5 Female Hex Standoff M2.5

Product Description

The ELECTRO HARDWARE MP437M09F16M2.5 is a female hex circuit board standoff designed to create precise spacing between PCBs and mounting surfaces in electronic assemblies. Machined from 303 stainless steel with a plain, bright uncoated finish, it meets the QQ-S-763 fastener standard for material and dimensional consistency. The standoff uses an M2.5 x 0.45 thread, has an overall length of 19.0 mm (approximately 0.748 inches), and a hex body width across flats of 4.5 mm (approximately 0.177 inches). Thread engagement depth is 4.8 mm (approximately 0.189 inches). These standoffs are installed by electronics technicians and field service technicians during PCB mounting, panel assembly, or control board replacement work.

This standoff is suited for metric-threaded circuit board stacking and spacer applications in industrial controls, HVAC control boards, and electronic enclosures where stainless steel corrosion resistance and dimensional precision are required. The partially threaded female hex design allows a mating male fastener to thread into the standoff from one end while the opposite end mounts to a panel or base board. Length tolerance is held to plus or minus 0.13 mm, making it appropriate for tight-clearance board layouts where stack height consistency matters across multiple mounting points.

Key Features

• M2.5 x 0.45 female thread, partially threaded with 4.8 mm thread depth
• Overall length of 19.0 mm (approximately 0.748 inches) with plus or minus 0.13 mm length tolerance
• Hex body profile, 4.5 mm width across flats, for wrench or nut driver installation
• 303 stainless steel construction with plain, bright uncoated finish for corrosion resistance
• Meets QQ-S-763 fastener material standard
• Metric system of measurement; compatible with M2.5 metric fastener ecosystems

Compatibility

Designed as an OEM-style metric standoff for circuit board mounting applications requiring M2.5 x 0.45 female-threaded hex standoffs in stainless steel.

Installation Notes

Installation is performed by electronics technicians or qualified service personnel during board assembly or control panel servicing. Power down and de-energize all equipment before handling or replacing circuit board hardware. A nut driver or hex wrench sized to 4.5 mm across flats is appropriate for seating these standoffs without damaging the hex body. Minimum order quantity for this part is 10 units; confirm required quantity before ordering to meet that threshold.