Electro Hardware 1431M06F16-440 Hex Standoff 4-40 9/16 in

Product Description

The ELECTRO HARDWARE 1431M06F16-440 is a male-female hex circuit board standoff designed to separate and support PCBs within electronic assemblies. The standoff features a 4-40 threaded male post on one end and a 4-40 threaded female bore on the other, allowing boards to be stacked or mounted securely at a fixed spacing. The body is machined from aluminum alloy to T-3 material grade and finished with an anodized coating for corrosion resistance. Overall length is 9/16 inch (0.5625 inches), with a 3/8-inch hex body and a 1/4-inch width across flats. Licensed electricians, electronics technicians, and panel assemblers install these standoffs in control board assemblies, HVAC equipment panels, and industrial enclosures.

These standoffs are suited for use in both commercial and residential electronic assemblies wherever 4-40 threaded fasteners are called for. Common applications include circuit board mounting inside HVAC control panels, electrical enclosures, and other equipment requiring reliable board standoff hardware. The hex body shape allows for tool-assisted tightening with a standard hex wrench or nut driver, making installation straightforward in tight panel spaces. The anodized aluminum construction keeps weight low while providing durability suitable for indoor and light-duty industrial environments.

Key Features

• Male-female configuration allows PCB stacking or fixed board mounting in a single fastener
• 4-40 thread size on both male post and female bore for standard compatibility
• Hex body with 1/4-inch width across flats accepts standard nut drivers and wrenches
• Aluminum construction with anodized finish for corrosion resistance and light weight
• Meets QQ-A-225A Comp 2 fastener standard, T-3 material grade
• Tight length tolerance of -0.005 to 0.005 inches for consistent board spacing

Compatibility

Designed as an OEM-style replacement or new-installation standoff for any assembly requiring a 4-40 male-female hex circuit board standoff with a 9/16-inch overall length and 1/4-inch hex body width.

Installation Notes

Installation is typically performed by licensed electricians or electronics assembly technicians. Always de-energize the equipment fully before working inside control panels or enclosures. Use an appropriately sized nut driver or hex wrench matched to the 1/4-inch width across flats to seat the standoff without over-torquing the aluminum threads. Follow applicable NEC guidelines and equipment manufacturer procedures when mounting or remounting control boards in electrical enclosures.