Electro Hardware P293M09F16256 Hex Standoff 2-56 1/4in Ss

Product Description

The ELECTRO HARDWARE P293M09F16256 is a female hex circuit board standoff designed to create precise, repeatable spacing between PCBs and mounting surfaces. Machined from 303 stainless steel with a plain bright finish, this fully threaded standoff accepts a 2-56 thread and provides a 1/4 inch overall length with a matching 1/4 inch thread depth. The hex body measures 3/16 inch across flats, allowing standard wrench engagement during installation. This fastener suits applications where corrosion resistance, dimensional accuracy, and reliable electrical isolation are required. It is typically installed by electronics assembly technicians, field service engineers, and trade professionals mounting control boards in HVAC, electrical, and industrial panel assemblies.

This standoff is used wherever a 2-56 threaded female-to-female or female-to-male connection is needed to stack or space circuit boards within an enclosure. Common install scenarios include HVAC control board mounting, industrial panel assemblies, and electrical enclosure builds requiring precise board-to-surface standoff height. The compact 1/4 inch overall length suits tight enclosures where clearance is limited. The stainless steel construction meets QQ-S-763 specification, making it appropriate for environments with moderate moisture exposure or where material traceability is required.

Key Features

• Female hex body with 2-56 fully threaded interior for secure board-to-board or board-to-chassis fastening
• 1/4 inch overall length and 1/4 inch thread depth for consistent standoff spacing
• 303 stainless steel construction meets QQ-S-763 material specification
• 3/16 inch hex width across flats allows standard wrench or nut driver engagement
• Plain bright finish — no coating to interfere with threaded engagement or electrical grounding paths
• Inch measurement system; length tolerance held to plus or minus 0.005 inch

Compatibility

Designed as an OEM-style replacement or new-installation standoff for any circuit board assembly requiring a 2-56 female threaded hex standoff with 1/4 inch overall length in the inch measurement system.

Installation Notes

This standoff is installed by electronics assembly technicians or qualified trade professionals working on control board assemblies. Always de-energize and lock out the equipment before servicing any mounted circuit board. Use a properly sized nut driver or hex wrench on the 3/16 inch flats to avoid rounding the hex body — do not use pliers directly on the standoff. Torque to the board manufacturer's specification for 2-56 fasteners; do not overtighten, as stainless-to-stainless thread galling can occur if installation is performed too rapidly without appropriate lubrication or technique.