Cap Nuts
Available534 products
Cap nuts screw onto exposed male fasteners to protect their threads and provide a finished look. They come in a variety of shapes and profiles that allow users to match certain aesthetics or fit inside of tight assemblies.
Extra-Low Crown Cap Nuts
Extra-low crown cap nuts are much shorter than normal cap nuts to provide clearance in cramped installations.
Not Graded Brass
Plain
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Low Crown Cap Nuts
Low-crown cap nuts feature a dome that is lower than normal cap nuts.
316L Stainless Steel
Plain
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Not Graded Steel
Plain
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Black Oxide
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Zinc Plated
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18-8 Stainless Steel
Plain
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Not Graded Brass
Plain
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Standard Crown Cap Nuts
Cap nuts protect the exposed ends of male fasteners from damage. They feature a crown that encloses one end of the nut to protect the exposed threads.
316L Stainless Steel
Plain
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Not Graded Steel
Zinc Plated
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Nickel Plated
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Chrome Plated
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Grade 2 Steel
Nickel Plated
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Class 6 Steel
Zinc Plated
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18-8 Stainless Steel
Plain
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Not Graded Brass
Plain
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Nickel Plated
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Chrome Plated
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Plastic
Plain
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High Crown Cap Nuts
High-crown cap nuts feature a dome that is taller than normal cap nuts.
316L Stainless Steel
Plain
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Not Graded Steel
Plain
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Black Oxide
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Zinc Plated
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Class 6 Steel
Zinc Plated
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18-8 Stainless Steel
Plain
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Not Graded Aluminum
Plain
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High Crown Cap Nuts with Flat Heads
High-crown cap nuts with flat heads are taller than normal cap nuts. They are flattened on their tops for aesthetic or clearance reasons.
316L Stainless Steel
Plain
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Not Graded Steel
Chrome Plated
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18-8 Stainless Steel
Plain
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Not Graded Aluminum
Plain
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Self-Locking Standard Crown Cap Nuts
Self-locking standard crown cap nuts secure onto male-threaded fasteners to protect the exposed thread and users. They utilize deformed female threads to secure against unwanted rotation.
18-8 Stainless Steel
Plain
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Hygienic Low Crown Cap Nuts with Flat Head
Hygienic low-crown cap nuts have low profiles for use in tight spaces with minimal clearance. These stainless steel nuts are hexagonal-shaped with flat heads and a collar that provides a tight seal. They have polished surfaces to prevent dirt and dust accumulation and are intended for use in sanitary applications.
316L Stainless Steel
Polished
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Hygienic Standard Crown Cap Nuts with Flat Head
These hygienic standard crown cap nuts have flat heads and pair with sealing rings to meet EHEDG (European Hygienic Engineering and Design Group) and FDA requirements for sanitary applications. These stainless steel nuts fasten without dead space and their surface finish minimizes accumulation of dirt and dust.
316L Stainless Steel
Finish: Unspecified
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Bright (Uncoated)
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Hygienic Standard Crown Cap Nuts with Sealing Washers
Hygienic standard crown cap nuts have preinstalled, replaceable thermoplastic sealing washers and meet FDA and EU requirements for use in sanitary applications. These stainless steel nuts have hexagonal sides with a domed top and collar that provides a tight seal.
316L Stainless Steel – Polished
Bright (Uncoated)
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316L Stainless Steel – Not Polished
Bright (Uncoated)
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Hygienic USIT Standard Crown Cap Nuts with Flat Heads
Hygienic standard crown cap nuts with flat heads meet EHEDG (European Hygienic Engineering and Design Group) requirements for sanitary applications when combined with USIT sealing and shim washers. These stainless steel nuts are hexagonal-shaped with flat heads and a collar that provides a tight seal.
316L Stainless Steel
Polished
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Hygienic USIT Standard Crown Cap Nuts with Sealing Washers
Hygienic standard crown cap nuts with sealing washers meet EHEDG (European Hygienic Engineering and Design Group) requirements for sanitary applications when used with the included USIT sealing and shim washers. These stainless steel nuts are hexagonal-shaped with flat heads and a collar that provides a tight seal.
316L Stainless Steel
Bright (Uncoated)
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