Electro Hardware P373M03F21256 Hex Standoff 2-56

Product Description

The ELECTRO HARDWARE P373M03F21256 is a female hex circuit board standoff designed to space and secure printed circuit boards within enclosures, control panels, and electronic assemblies. Machined from brass with a clear zinc chromate finish meeting ASTM B633 Type 1 and QQ-B-626 Comp 22 standards, this standoff provides a corrosion-resistant threaded receptacle for board mounting hardware. The 2-56 female thread accepts a mating male screw from above while the body threads into a panel or mating standoff below. At 1.5 inches overall length with a 3/16-inch width across flats, it suits applications where moderate board-to-surface clearance is required for airflow, wiring access, or component height clearance.

This standoff is used in residential and commercial electronic assemblies, HVAC control boards, electrical enclosures, and industrial panel installations where repeatable board-to-chassis spacing is critical. The hex body profile allows installation and removal with standard hex drivers or pliers, making it practical for field service as well as production assembly. It is sized for light-duty fastening in the 2-56 thread class, common in small-form-factor PCB mounting applications.

Key Features

• Female 2-56 thread accepts standard mating machine screw from above
• 1.5 inches overall length provides consistent board standoff clearance
• 3/16-inch hex body allows torquing with standard hex tooling
• Brass construction with clear zinc chromate finish for corrosion resistance
• Meets ASTM B633 Type 1 and QQ-B-626 Comp 22 standards
• 3/16-inch thread depth provides adequate thread engagement for light fastening loads

Compatibility

Designed as an OEM-style replacement or new-installation standoff for PCB mounting applications requiring a 2-56 female thread and 1.5-inch overall length in a hex body format.

Installation Notes

Installation is performed by electricians, electronics technicians, or HVAC control board service professionals. De-energize and lock out all power to the assembly before removing or installing circuit board hardware. Use a properly sized hex driver or pliers on the hex flats to avoid deforming the body. Do not overtighten, as brass standoffs in small thread sizes are susceptible to thread strip at excessive torque.