Electro Hardware MMX1645M09MSC-1 Hex Standoff M5x0.8

Product Description

The ELECTRO HARDWARE MMX1645M09MSC-1 is a male-male hex circuit board standoff designed to create fixed spacing between PCBs, panels, or chassis components in electronic assemblies. Machined from Grade 18-8 303 stainless steel with a passivated finish, this standoff resists corrosion and meets QQ-S-763 federal specifications. The M5 x 0.8 thread runs on both ends, with an overall length of 25 mm and a hex body width across flats of 8 mm. The passivated surface treatment removes free iron from the steel surface, extending service life in humid or industrial environments. Weighing 0.19 pounds, it is suited for light-duty board mounting applications where dimensional consistency is critical.

This standoff is used in electronic control panel assemblies, circuit board stacking configurations, and enclosure builds across industrial, HVAC controls, and electrical panel applications. Installers and assemblers use male-male standoffs when both mating surfaces require a threaded fastener interface. The hex body shape allows standard wrench or nut driver engagement for consistent torque application without slipping. Its metric M5 x 0.8 thread pitch makes it appropriate for metric-threaded PCB hardware and panel assemblies.

Key Features

• M5 x 0.8 male thread on both ends for dual-threaded panel or board mounting
• 25 mm overall body length with a length tolerance of -0.15 mm to +0.15 mm for precise spacing
• 8 mm width across flats allows engagement with standard hex drivers and wrenches
• Grade 18-8 303 stainless steel construction with passivated finish per QQ-S-763
• Thread length of 9 mm to 10 mm on each end provides full thread engagement
• Hex body shape prevents rotation during installation

Compatibility

Designed as an OEM-style replacement or direct-use fastener for metric M5 x 0.8 threaded circuit board and panel standoff applications in electronic assemblies.

Installation Notes

Installation is typically performed by electronics assemblers, panel builders, or electricians working on control enclosures. Power down and de-energize all boards and panels before installing or removing standoffs. Use a calibrated hex driver or wrench sized for 8 mm across flats to avoid rounding the hex body. Follow applicable assembly standards and enclosure codes when integrating into listed control panels.