Electro Hardware 1311M09F16440 Hex Standoff 4-40 7/16 in Ss

Product Description

The ELECTRO HARDWARE 1311M09F16440 is a male-female hex circuit board standoff designed to separate and support PCBs in electronic assemblies. It features a 4-40 unified thread with a male thread on one end and a female threaded bore on the other, allowing boards to be stacked or mounted at a fixed, repeatable distance. The body measures 7/16 inches in overall length with a 3/16-inch width across flats. Constructed from grade 303 stainless steel with a passivated finish per QQ-S-763, it provides corrosion resistance suitable for demanding environments. Electronics assembly technicians, field service engineers, and HVAC controls technicians use these standoffs when servicing or assembling control board assemblies.

This standoff is suited for use in printed circuit board mounting applications across residential and light commercial equipment including HVAC control panels, electrical enclosures, and industrial equipment chassis. The hex body profile allows standard wrench or socket installation for consistent torque application. With a thread depth of 1/4 inch on the female end and a 3/16-inch thread length on the male end, the standoff provides secure engagement on standard 4-40 threaded fasteners and matching hardware.

Key Features

• Male-female hex configuration for PCB stacking and board-to-chassis mounting
• 4-40 unified thread size on both ends for standard hardware compatibility
• 7/16 inch overall body length with 3/16 inch width across flats
• Grade 303 stainless steel construction with passivated finish per QQ-S-763
• Hex body shape accepts standard wrenches for precise installation
• 1/4 inch female thread depth and 3/16 inch male thread length for secure fastener engagement

Compatibility

Designed as an OEM-style replacement or service-stock standoff for circuit board assemblies using 4-40 threaded mounting hardware in standard hex standoff configurations.

Installation Notes

Installation is performed by electronics technicians or field service professionals using a standard hex wrench or socket sized for 3/16 inch across flats. Always de-energize and discharge any capacitors in the assembly before handling circuit boards or standoffs. Follow applicable IPC assembly standards for torque and hardware engagement. Do not overtighten, as stainless steel fasteners are subject to galling if excess force is applied without lubrication.