Cap Nuts in 316 Stainless Steel. Cap nuts, also known as acorn nuts, are a type of fastener whose name comes from its shape. A cap nut It is a hex nut that has a closed end, domed top to prevent contact with the external thread. Available in low crown and high crown, low crown is the most popular style, high crown is more often found in metric sizes. Cap acorn nuts are easily removed for maintenance to be performed, they also provide an aesthetically pleasing finished look.
316 Stainless Steel Cap Nuts have better corrosion and rust resistance than standard 304 Stainless Steel, which makes these nuts recommended for marine, salt water or other harsh environment applications.