Electro Hardware 1303M03F21256 Hex Standoff 2-56

Product Description

The ELECTRO HARDWARE 1303M03F21256 is a male-female hex circuit board standoff designed to create precise spacing between PCBs and mounting surfaces in electronic assemblies. Machined from brass with a zinc-plated finish meeting ASTM B633 Type 1 and QQ-B-626 Comp 22 standards, this standoff provides reliable corrosion resistance and conductivity characteristics required in professional electronics work. The hexagonal body measures 3/16 inches across flats and 3/16 inches in overall length, with a 5/32-inch thread length on each end. The 2-56 thread size suits fine-pitch PCB mounting applications. Electronics technicians, field service engineers, and assembly professionals install these standoffs during board-level work and enclosure builds.

This standoff is used in residential and commercial electronics assemblies where consistent board-to-board or board-to-chassis clearance is required. Typical applications include control board mounting in HVAC equipment, industrial control panels, and general PCB enclosure assemblies. The male-female configuration allows stacking multiple standoffs or terminating a fastener stack with a screw on one end and a mating female standoff on the other. The compact 3/16-inch form factor suits tight enclosure layouts common in equipment control boards.

Key Features

• Male-female hex configuration for stackable PCB spacing applications
• 2-56 thread size for fine-pitch circuit board mounting
• Brass construction with zinc-plated finish per ASTM B633 Type 1 and QQ-B-626 Comp 22
• Hexagonal body shape for wrench engagement during installation and removal
• 3/16-inch overall length and 5/32-inch thread length for compact board spacing
• Length tolerance of -0.005 to 0.005 inches for consistent stack height

Compatibility

Designed for use in standard 2-56 threaded PCB mounting applications requiring a male-female hex standoff with a 3/16-inch body length and zinc-plated brass construction.

Installation Notes

Installation is performed by electronics technicians and field service professionals using a hex driver or small wrench sized for 3/16-inch flats. De-energize all equipment and discharge any stored electrical energy before servicing control boards or mounting hardware. Avoid over-torquing the 2-56 thread, as brass is softer than steel and threads can strip under excessive force. Follow applicable IPC assembly standards and equipment manufacturer guidelines for board mounting torque and spacing requirements.