Electro Hardware MMX1745M12-MSC Hex Board Standoff M4

Product Description

The ELECTRO HARDWARE MMX1745M12-MSC is a male-male hex circuit board standoff designed to create fixed spacing between printed circuit boards or between a board and a mounting surface. The standoff features an M4 x 0.7 thread profile on both ends and a 25 mm overall length with a hexagonal body measuring 10 mm across the flats. Constructed from Grade 2 steel with a zinc-plated finish, it meets the QQ-S-633 fastener standard. Thread length ranges from 8.5 mm to 9.5 mm depending on engagement. Electronics technicians, panel builders, and electrical assemblers install this hardware in control panels, PCB assemblies, and industrial enclosures.

This standoff is suited for metric-threaded circuit board mounting applications in residential and commercial control panels, HVAC control boards, electrical enclosures, and similar assemblies requiring rigid, conductive board-to-board or board-to-chassis spacing. Its hex body allows installation and removal with a standard open-end or box wrench, making it practical for production assembly and field service work where secure, repeatable standoff height is required.

Key Features

• M4 x 0.7 male thread on both ends for secure metric fastening
• 25 mm overall length provides precise, consistent board spacing
• Hexagonal body, 10 mm across the flats, for wrench-driven installation
• Grade 2 steel construction with zinc-plated finish for corrosion resistance
• Meets QQ-S-633 fastener standard
• Thread length range of 8.5 mm to 9.5 mm accommodates minor stack-up variation

Compatibility

Designed as an OEM-style metric standoff for circuit board assemblies requiring M4 x 0.7 threaded male-male hardware with a 25 mm overall length and hex body form factor.

Installation Notes

Installation is typically performed by electronics technicians or electrical assemblers using a standard open-end wrench sized to 10 mm across the flats. De-energize and discharge all circuits before working on any board assembly. Do not overtighten, as excessive torque can crack PCB mounting holes or strip the metric threads. Ensure mating threads on the board standoff holes or chassis are clean and free of debris before installation.