Electro Hardware P309M19F16256 Hex Standoff 2-56 Nylon

Product Description

The ELECTRO HARDWARE P309M19F16256 is a female hex circuit board standoff designed to create fixed spacing between PCBs and mounting surfaces in electronic assemblies. Machined from nylon with a plain, uncoated finish, this standoff accepts a 2-56 thread on the female end and measures 0.5 inches in overall length. The hex body spans 0.1875 inches across flats, allowing standard hex drivers to seat the fastener without slipping. Full threading runs through the entire 0.5-inch thread depth, providing reliable thread engagement for the corresponding 2-56 male fastener. Tensile strength is rated at 16,500 psi under MIL-P-17091B, indicating mil-spec material performance for nylon standoffs in demanding electronic environments.

This standoff is used in circuit board mounting applications where non-conductive spacing is required. Nylon construction makes it a practical choice for electrical isolation between board layers or between a PCB and a metal chassis. Typical install scenarios include control boards in HVAC equipment, industrial enclosures, power supply assemblies, and embedded electronics panels. The 2-56 thread size is standard for lightweight PCB hardware where clearance and insulation are priorities over high mechanical load.

Key Features

• Female hex body accepts 2-56 male fastener for secure board-to-board or board-to-chassis spacing
• 0.5-inch overall length with full 0.5-inch thread depth for maximum thread engagement
• Nylon construction provides electrical isolation and lightweight non-corrosive performance
• 3/16-inch (0.1875 inches) width across flats fits standard hex tooling
• MIL-P-17091B compliant material grade 101 nylon construction
• Plain, uncoated finish suitable for general-purpose electronic assembly

Compatibility

Designed as an OEM-style replacement or new-install standoff for any circuit board assembly using 2-56 threaded fastener hardware requiring non-conductive hex standoffs.

Installation Notes

Installation is performed by electronics technicians or field service professionals working on control board assemblies. Power down and de-energize all circuits before servicing any PCB hardware. Use an appropriately sized hex driver or nut driver matching the 3/16-inch across-flats dimension to avoid stripping the nylon hex body. Do not overtighten, as nylon standoffs are susceptible to thread damage under excessive torque.