Electro Hardware MMX1535M12-MSC Hex Standoff M3x0.5 20mm

Product Description

The ELECTRO HARDWARE MMX1535M12-MSC is a male-male hex circuit board standoff designed to create fixed spacing between PCBs and chassis panels in electronic assemblies. It features an M3 x 0.5 thread on both ends with an overall length of 20 mm and a hexagonal body that measures 6 mm across the flats. Made from Grade 2 steel with a zinc-plated finish, it meets the QQ-S-633 fastener standard. Electronics assembly technicians and electrical panel builders use this standoff to mechanically secure and space circuit boards in control panels, enclosures, and industrial equipment.

This standoff is suited for metric-thread applications requiring a rigid, conductive, metal spacer between a circuit board and a mounting surface. Typical install scenarios include control board mounting inside HVAC equipment, VFD enclosures, and automation panels where consistent board spacing and secure mechanical attachment are required. The hex body allows installation and removal with a standard wrench or nut driver, making it practical for field service and bench assembly alike.

Key Features

• M3 x 0.5 male thread on both ends for metric fastener compatibility
• 20 mm overall length with a 6 mm hex body width across flats
• Grade 2 steel construction for reliable mechanical strength in panel applications
• Zinc-plated finish provides corrosion resistance in indoor enclosure environments
• Meets QQ-S-633 fastener standard
• Hex body profile accepts standard wrench or nut driver for fast installation and removal

Compatibility

Designed as an OEM-style metric standoff for circuit board mounting applications requiring M3 x 0.5 male-male thread configuration in control panels and electronic enclosures.

Installation Notes

Installation is performed by electronics technicians or electricians during panel assembly or field service. De-energize all circuits in the enclosure before handling or replacing standoffs near live boards. A nut driver or open-end wrench sized to 6 mm across flats is the appropriate tool for torquing this standoff by hand to snug-fit without over-stressing the thread. Follow applicable NEC guidelines when working inside energized electrical enclosures.