Metallics JWN9 Nuts 1/2-13 Stamp Wing Nut St-zn (Jar 100)

The JWN9 is a 1/2-13 wing nut, so it threads onto 1/2 inch coarse (UNC) rod or bolt at 13 threads per inch. It will not run onto 1/2-20 fine thread. Thread form follows ANSI/ASME B18.17.

Plan on about 1.72 to 1.75 inches of clearance across the wings, with the wings standing 0.64 to 0.67 inches tall and each wing 0.27 to 0.30 inches thick. The base pad measures 0.97 to 1.00 inches across. If your channel or box only clears an inch, a standard hex nut and a wrench is the better call.

No. The JWN9 is not Buy American compliant and is not ARRA compliant, and country of origin is listed as multiple. If your project carries domestic sourcing requirements, this part won't satisfy them.

The JWN9 is steel with a zinc finish, which handles indoor and normally dry or damp mechanical spaces. Zinc plating is a mild corrosion coating, not stainless, so for wet exterior or corrosive service you'd want a stainless or hot-dip galvanized nut instead.

They ship in a jar of 100, and the jar is the minimum order unit, so you buy 100 at a time. The full jar weighs 6.79 lbs.

Use a wing nut where the connection gets taken apart by hand and often, such as temporary covers, panels, grounding straps, or equipment that gets serviced regularly. It's made for hand assembly and disassembly with no tool. For a structural or high-torque joint that stays put, a hex nut you can wrench down is the right part, since a stamped wing nut is a sheet steel part tightened by finger pressure.

It's a general MRO fastener used across electrical, plumbing, heating and air conditioning work, which is why it's stocked by the jar rather than the piece. Typical use is on 1/2 inch all-thread rod, hanger assemblies, and panel or cover fastening where hand removal matters.