Electro Hardware 1311M09F16256 Hex Standoff 2-56

Product Description

The ELECTRO HARDWARE 1311M09F16256 is a male-female hex circuit board standoff designed to create fixed spacing between stacked PCBs or between a PCB and a mounting surface. It features a 2-56 thread on both the male and female ends, a hexagonal body measuring 3/16 inches across the flats, and an overall body length of 7/16 inches (0.4375 inches). Manufactured from 303 stainless steel with a passivated finish per QQ-S-763, this standoff resists corrosion and maintains dimensional stability in demanding environments. Electronics assembly technicians and field service technicians install these in control boards, industrial enclosures, and HVAC equipment circuit assemblies.

This standoff is suited for use in printed circuit board assemblies requiring a 2-56 threaded fastening system with precise board-to-board or board-to-panel separation. Common applications include residential and light commercial HVAC control boards, industrial control enclosures, and electronic equipment requiring reliable, non-conductive-gap hardware. The passivated stainless steel construction makes it appropriate for environments where mild moisture exposure or chemical contact is a concern. These are sold individually but require a minimum order quantity of 10 units per order.

Key Features

• 2-56 male-female threaded configuration allows stackable board mounting in a single fastener
• Hexagonal body shape at 3/16 inches across flats provides positive wrench engagement during installation
• 303 stainless steel construction with passivated finish meets QQ-S-763 fastener standard
• Overall body length of 7/16 inches (0.4375 inches) with a length tolerance of -0.005 to +0.005 inches
• Thread length of 5/32 inches on the male end; thread depth of 3/16 inches on the female end
• Lightweight at 0.14 pounds per unit, minimizing added load on sensitive PCB assemblies

Compatibility

Designed as an OEM-style replacement or new-installation standoff for circuit board assemblies using 2-56 inch-series threaded fasteners requiring a hex body style.

Installation Notes

Installation is typically performed by electronics assembly technicians or qualified HVAC and controls service technicians. De-energize all equipment fully before handling circuit boards or installing standoffs. Use an appropriately sized hex driver or nut driver to avoid rounding the hex flats. Do not over-torque the male thread into the mating board or panel, as 2-56 threads in PCB brass inserts or thin panels can strip under excess force.