Washer Base Flange Wing Nuts in Zamak Zinc Alloy

Easily Installed and Removed by Hand

Wing Nuts feature two protruding wings on either side of the nut to tighten or loosen by hand. Wing Nuts are commonly seen on assemblies that require adjustment or are not permanent. They are also used when convenience is a driving factor.

Flange wing nuts, or washer base wing nuts, are variations of traditional wing nuts. These wing nuts feature an additional integrated smooth washer, effectively combining a flat washer with a wing nut. The flange portion helps to distribute pressure from the fastener assembly over a wider surface area. This allows for an even more straightforward installation and removal by removing the need for a washer.

Zamak Zinc Alloy

Zamak is a zinc alloy family. The most common, Zamak 3, is an alloy of zinc and aluminum and the de facto choice for die casting. Zamak alloy has an excellent balance of physical and mechanic properties, superb castability, and long-term dimensional stability.

Size: Wing Spread: Total Height: Washer OD: Individual Wing Width: Between Wings: Washer Thickness: Wing Thickness at Base: Boss & Washer Height:
#8-32 7/8 7/16 5/8 0.207 0.250 0.032 0.125 0.182
#10-24 7/8 7/16 5/8 0.207 0.250 0.032 0.125 0.182
#10-32 7/8 7/16 5/8 0.207 0.250 0.032 0.125 0.182
1/4"-20 1 1/2 3/4 0.234 0.312 0.035 0.140 0.205
1/4"-20 1-1/8 37/64 7/8 0.260 0.375 0.040 0.150 0.225
5/16"-18 1 1/2 3/4 0.234 0.312 0.035 0.140 0.205
5/16"-18 1-1/8 37/64 7/8 0.260 0.375 0.040 0.150 0.225
3/8"-16 1-1/8 37/64 7/8 0.260 0.375 0.040 0.150 0.225

FAQs

How is a wing nut designed to be tightened?

Wing nuts are designed to be tightened with your fingers. They can also be tightened using special wing nut drivers that are compatible with power tools.

How do you use wing nuts?

Wing nuts should be used in applications where the workpiece needs to be frequently changed or moved.

What is a butterfly nut?

A butterfly nut is a nut with wing-like protrusions on either side, intended to be fastened by hand. It's another name for a wing nut.

What is a Zamak 3?

Zamak 3 is the most common alloy of the Zamak family, being made of 96% zinc and 4% aluminum. It has excellent castability and long term dimensional stability. It is the alloy of choice for die casting, with more than 70% of all North American zinc die castings made from Zamak 3.

What is Zamak used for?

Zamak is used in many applications such as plumbing fittings, zippers, staplers, handles, locks, die-cast toys, sheet metal tooling, automotive parts, and some firearms, to name a few.

What is meant by die casting?

Die casting is a metal casting process in which molten metal is forced under pressure into a mold cavity. Zamak 3 is the most frequently used alloy for die casting in North America.