Dome Cap Nuts - Nickel Plated Steel

Hex Nuts with a Domed Top to Cover Exposed Threading

Acorn nuts are a type of fastener whose name comes from its shape. It is a hex nut with a closed-end, domed top to cover the exposed threaded end. They are also known as cap nuts and dome nuts. Acorn cap nuts are easily removed for maintenance to be performed. They also provide an aesthetically pleasing finished look. Acorn Nuts are available in 304/18-8 Stainless Steel, 316 Stainless Steel, Brass, Chrome Plated, and Nickel Plated finish.

Acorn Cap Nuts - Nickel Plated Steel - Specifications

Nut Sizes Width Across Flats Height
#6-32 Max 0.312" - Min 0.302" Max 0.276" - Min 0.244"
#8-32 Max 0.312" - Min 0.302" Max 0.276" - Min 0.244"
#10-24 Max 0.375" - Min 0.362" Max 0.335" - Min 0.303"
#10-32 Max 0.375" - Min 0.362" Max 0.335" - Min 0.303"
1/4"-20 Max 0.438" - Min 0.423" Max 0.402" - Min 0.362"
5/16"-18 Max 0.562" - Min 0.545" Max 0.484" - Min 0.444"
3/8"-16 Max 0.625" - Min 0.607" Max 0.520" - Min 0.480"
1/2"-13 Max 0.750" - Min 0.736" Max 0.563" - Min 0.523"
5/8"-11 Max 0.938" - Min 0.922" Max 0.826" - Min 0.787"

Nickel Plated Steel

Nickel plating adds an extra layer of corrosion and wear resistance to steel while also adding a decorative look with its high luster finish. It is primarily used for decorative purposes and is comparable to zinc plating.

FAQs

What is a cap nut used for?

Acorn Cap Nuts are used to cover the exposed threading of threaded rods or studs and bolt ends. This is done for safety reasons and to provide a clean, finished look to the application.

How do you remove a cap nut?

Removing a cap nut is simple. They're threaded the same way as traditional hex nuts, so they can be removed with traditional pliers, wrenches, or ratchets that fit snugly around the nut.

How do you install a cap nut?

Same as other hexagonal nuts: with a wrench, pliers, or a ratchet. Cap nuts are just hex nuts with a dome over one side of the internally threaded hole, enclosing it.

What is nickel plated steel?

Nickel plated steel is carbon steel with a nickel plating, typically given to add a layer of corrosion and wear resistance as well as a more decorative finished look.

Can nickel plating tarnish?

Nickel plating tarnishes easily. It's not as hard as chrome, another plating used primarily for decoration, but it does have good corrosion resistance.