Metric Dome Cap Nuts - DIN 1587 - Zinc 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.

Zinc Plated Steel

Zinc is by far the most common and economical type of plating for fasteners. The zinc plating adds a protective "sacrificial" top layer against corrosion while also adding a shiny finish to the threaded rod. Zinc plated threaded rod is ideal for indoor use where it won't be constantly exposed to harsh elements.

Acorn Hex Cap Nuts in this selection adhere to the DIN 1587 sizing standards for fasteners.

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 zinc plated steel?

Zinc plated steel is steel that goes through adding a layer or coating of zinc to protect the steel from corrosion. The added layer of zinc sacrifices itself to keep the steel from rusting, even if the plating is damaged.

Can zinc plated steel be used outside?

Zinc plating is not a good form of corrosive protection for outdoor use, especially near saltwater or in marine environments. For those applications, stainless steel or potentially hot-dip galvanized steel would work better. Zinc-plated steel is better for indoor use.