Electro Hardware P297M09F16256 Hex Board Standoff

Product Description

The ELECTRO HARDWARE P297M09F16256 is a female hex circuit board standoff designed to create precise spacing and provide a threaded mounting point between printed circuit boards and enclosures or chassis panels. Machined from 303 stainless steel with a plain bright finish, this standoff carries a 2-56 female thread and measures 5/16 inches in overall length with a 3/16 inches width across flats. The hex body allows installation and removal with standard hex tooling. Fully threaded through the 5/16 inch thread depth, it accepts a mating 2-56 male fastener from either end. Licensed electricians, electronics technicians, and panel builders use this type of hardware during control board assembly and enclosure builds.

This standoff is suited for light-duty PCB mounting applications in residential and commercial control panels, HVAC equipment boards, low-voltage relay enclosures, and similar electronic assemblies where a compact, corrosion-resistant spacer is required. The 2-56 thread size is common in small-format board mounting scenarios where minimal footprint and reliable thread engagement matter. Its stainless steel construction makes it appropriate for environments where mild corrosion resistance is needed.

Key Features

• Female 2-56 thread accepts standard mating screws from either end for secure board-to-chassis attachment
• 303 stainless steel construction provides corrosion resistance and durability in demanding environments
• Hex body profile allows tightening with standard hex drivers or open-end wrenches
• 5/16 inches overall length and 3/16 inches width across flats suit compact PCB spacing applications
• Plain bright finish with no coating keeps dimensions consistent and avoids interference in tight clearances
• Meets QQ-S-763 fastener standard for stainless steel hardware

Compatibility

Designed as a standard 2-56 female hex standoff for use in PCB mounting assemblies requiring a 5/16 inch overall length spacer and 3/16 inch hex body. Confirm thread engagement and panel clearance before installation.

Installation Notes

Installation is performed by electronics technicians, licensed electricians, or control board assemblers. De-energize all control circuits and discharge any stored voltage before handling circuit boards or installing standoffs. Use a correctly sized hex driver or nut driver matching the 3/16 inch width across flats to avoid rounding the hex body. Do not overtighten, as the 2-56 thread is fine and subject to stripping if excessive torque is applied without torque-limiting tooling.