Electro Hardware P341M03F21440 Hex Standoff 4-40 1in

Product Description

The ELECTRO HARDWARE P341M03F21440 is a female hex circuit board standoff designed to create a threaded mounting point between a PCB and a chassis, enclosure, or secondary board. It features a 4-40 thread size, a 1 inch overall length with 1 inch of full thread depth, and a hexagonal body with a 3/16 inch width across flats for standard hex tool engagement. Constructed from brass with a clear zinc chromate finish, it meets ASTM B633 Type 1 and QQ-B-626 Comp 22 standards. This standoff is installed by electronics assemblers, field service technicians, and control board replacement specialists working across HVAC, electrical, and related trade equipment.

This standoff is suited for residential and commercial circuit board mounting applications where a threaded female receptacle is required to secure a PCB at a fixed standoff height. Typical installations include control board mounting in HVAC equipment, electrical enclosures, and industrial panel assemblies. The 4-40 thread and 1 inch spacing make it a common choice for light-gauge PCB mounting where consistent board-to-chassis clearance is required. Minimum order quantity is 10 units.

Key Features

• Female 4-40 thread with 1 inch full thread depth for secure fastener engagement
• Hexagonal body profile, 3/16 inch width across flats, accepts standard hex wrench or driver
• Brass construction with clear zinc chromate finish for corrosion resistance
• Meets ASTM B633 Type 1 and QQ-B-626 Comp 22 fastener standards
• 1 inch overall length provides consistent PCB standoff height
• Length tolerance of -0.005 to 0.005 inches for precision mounting

Compatibility

Designed as a standard 4-40 female hex standoff for circuit board mounting applications requiring a 1 inch OAL brass hex standoff with clear zinc chromate finish.

Installation Notes

Installation is performed by electronics technicians or trade professionals during control board mounting or replacement. Power down and de-energize all circuits before working in any enclosure. Use a hex wrench or nut driver sized for 3/16 inch flats to drive and torque the standoff without damaging the hex body. Avoid over-tightening, which can crack or stress the PCB mounting hole or damage the brass threads.