Electro Hardware P301M03F21256 Hex Standoff 2-56 3/8 in

Product Description

The ELECTRO HARDWARE P301M03F21256 is a female hex circuit board standoff designed to create precise spacing and provide threaded mounting points between PCBs and enclosure panels or between stacked boards. Manufactured from brass with a clear zinc chromate finish meeting ASTM B633 Type 1 and QQ-B-626 Comp 22 standards, this standoff delivers reliable corrosion resistance in electronics assembly environments. The hexagonal body profile allows installation and removal with standard hex wrenches or nut drivers. With a 2-56 female thread, a 3/8 inch overall length, and a full 3/8 inch thread depth, it provides solid thread engagement across the full body length. Electronics assemblers, PCB technicians, and electrical panel builders are the typical installers.

This standoff is suited for light-duty circuit board mounting applications in residential and commercial electronics assemblies, control panels, and enclosures where a 2-56 threaded female standoff is specified. The 3/16 inch width across flats accommodates compact board layouts with tight component spacing. It is commonly used where PCBs must be elevated off a mounting surface to allow airflow, prevent shorts, or permit second-side component clearance. Sold individually, this part is appropriate for prototyping, repair, and low-volume production runs.

Key Features

• 2-56 female thread fully threaded to 3/8 inch depth for maximum thread engagement
• Hexagonal body shape for wrench or nut-driver installation and removal
• Brass construction with clear zinc chromate finish for corrosion resistance
• Meets ASTM B633 Type 1 and QQ-B-626 Comp 22 fastener standards
• Compact 3/16 inch width across flats suits dense PCB layouts
• Inch system of measurement; length tolerance of -0.005 to +0.005 inches

Compatibility

Designed as an OEM-style replacement or direct-fit standoff for circuit board assemblies requiring a 2-56 female threaded hex standoff with a 3/8 inch overall length.

Installation Notes

Installation is typically performed by electronics assemblers or licensed electricians during control board or enclosure assembly. Power down and de-energize the assembly completely before installing or removing standoffs. Use a correctly sized hex driver or nut driver matching the 3/16 inch width across flats to avoid deforming the hex body. Do not overtighten, as brass standoffs can be damaged by excessive torque from power tools.