Electro Hardware P437M12F21256 Female Hex Standoff 2-56

Product Description

The ELECTRO HARDWARE P437M12F21256 is a female hex circuit board standoff designed to create fixed spacing between circuit boards and mounting surfaces or between stacked boards in electronic assemblies. Threaded with a 2-56 female thread, it accepts a mating male screw on each end to secure PCB layers at a consistent, precise distance. The standoff measures 2.5 inches overall length with a 3/16-inch hex body width across flats. Manufactured from steel with a clear zinc chromate finish meeting ASTM B633 Type 1 and QQ-S-633 standards, it delivers corrosion resistance suitable for indoor electronic enclosures. Licensed electricians and electronics technicians install this hardware during control panel builds, PCB rack assemblies, and equipment chassis fabrication.

This standoff is used in residential and commercial electronic control assemblies where rigid, non-conductive spacing between circuit boards is required. It is a common component in HVAC control panels, electrical enclosures, industrial equipment chassis, and custom PCB stack assemblies. The hex body profile accepts a standard hex driver for fast, torque-controlled installation without slipping. Its 3/16-inch thread depth accommodates typical 2-56 screw engagement lengths used in light-duty PCB mounting applications.

Key Features

• Female 2-56 thread on both ends for secure PCB-to-PCB or PCB-to-chassis mounting
• 2.5-inch overall length provides generous board separation for multi-layer assemblies
• 3/16-inch hex body width across flats compatible with standard hex drivers and wrenches
• Steel construction with clear zinc chromate finish per ASTM B633 Type 1 and QQ-S-633
• 3/16-inch thread depth for reliable 2-56 screw engagement
• Hex body shape prevents rotation during installation for consistent torque application

Compatibility

Designed as an OEM-style replacement or new-installation standoff for circuit board assemblies using 2-56 threaded fasteners in inch-measurement systems.

Installation Notes

Installation is performed by licensed electricians or electronics technicians during control board assembly or panel fabrication. Power down and de-energize all circuits before working inside any enclosure. Use a properly sized hex driver or wrench on the 3/16-inch flats to seat the standoff without stripping the body. Follow applicable NEC guidelines when installing standoffs inside electrical enclosures or control panels.