Electro Hardware MMX1645M12MSC-1 Hex Standoff M5x0.8

Product Description

The ELECTRO HARDWARE MMX1645M12MSC-1 is a male-male hex circuit board standoff designed to create precise spacing between PCBs, panels, and mounting surfaces in electronic assemblies. Machined from Grade 2 steel with a zinc-plated finish conforming to QQ-S-633, this standoff offers corrosion resistance suitable for enclosed electronic enclosures and control panel applications. The metric M5 x 0.8 thread pattern runs on both ends, with an overall length of 25 mm and a hex body width across flats of 8 mm for positive wrench engagement during installation. Licensed technicians and control board assemblers working on HVAC, electrical, and industrial control equipment rely on standoffs like this to maintain board clearance and mechanical stability.

This standoff is suited for metric-threaded circuit board mounting in residential and light commercial HVAC control panels, electrical enclosures, and industrial equipment chassis. The hex body shape allows installation with a standard open-end or socket wrench, making it practical for field service and bench assembly alike. At 0.19 pounds per package, it ships as a single-piece unit with a minimum order quantity of one, making it easy to source as a replacement or repair fastener without committing to bulk quantities.

Key Features

• Male-male thread configuration on both ends for board-to-board or board-to-panel stacking
• M5 x 0.8 metric thread size with thread lengths of 10 mm, 9 mm, and 9.5 mm on respective ends
• 25 mm overall body length provides consistent PCB standoff height
• Hex body shape, 8 mm width across flats, allows wrench-driven installation
• Grade 2 steel construction with zinc-plated finish meets QQ-S-633 standard
• Single-piece packaging with no minimum bulk requirement

Compatibility

Designed as an OEM-style replacement or service fastener for metric M5 x 0.8 threaded circuit board mounting applications in electronic enclosures and control panels.

Installation Notes

Installation is typically performed by licensed electricians or HVAC controls technicians during bench assembly or field panel service. Always de-energize and lock out the equipment before accessing control boards or enclosures, in accordance with NFPA 70E electrical safety requirements. Use an appropriately sized open-end wrench or socket on the 8 mm hex flats to drive the standoff to snug without over-torquing, which can strip the metric threads or crack the board substrate. Inspect threads for contamination or damage before installation.