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The VALUE COLLECTION 686 is a spring steel U nut designed for Number 6 screws, used to create fast, tool-free threaded attachment points in sheet metal and panel assemblies. The U-shaped clip slides over a panel edge and self-retains, allowing a screw to be driven without access to the back side of the material. Constructed from spring steel with a black phosphate finish, this nut handles material thicknesses from 0.025 inches to 0.125 inches. The center-to-edge dimension is 0.375 inches. This type of fastener is standard in electrical enclosure work, HVAC equipment assembly, and mechanical panel fabrication.
U nuts in this size range are commonly installed during original equipment assembly or field service on electrical panels, control enclosures, ductwork access doors, and light-gauge sheet metal fabrications. They are suited for residential and light commercial applications where back-side nut access is limited or impractical. Each package contains 50 pieces, making this a practical bench stock item for service shops and assembly operations.
Designed for use with Number 6 screws on light-gauge sheet metal panels and enclosures where material thickness falls between 0.025 inches and 0.125 inches.
U nuts are typically installed by hand or with light plier pressure by sheet metal workers, electricians, or HVAC technicians during panel assembly or field repair. Power down and de-energize any electrical enclosure before installing or replacing U nuts in live panel applications. Verify material thickness is within the specified range before seating the clip to ensure proper retention and thread engagement. Do not overdrive the mating screw, as spring steel clips can deform if torque exceeds the panel material rating.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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