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  7. Cap Nuts & Acorn Nuts
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Cap Nuts & Acorn Nuts (592 items)

Zoro Select Cap Nut, 5/8", Plastic, Black, 0.645 in H, 10 PK 138264000
CAD Files Available
Zoro Select

Cap Nut, 5/8", Plastic, Black, 0.645 in H, 10 PK

Zoro # G0735086
Mfr # 138264000
product price:  $6.25
/pk 10, $0.63/ea
Zoro Select Standard Crown Cap Nut, 1/4"-20, Nylon, Plain, 15/32 in H, 25 PK 0525020CN
Zoro Select

Standard Crown Cap Nut, 1/4"-20, Nylon, Plain, 15/32 in H, 25 PK

Zoro # G0392472
Mfr # 0525020CN
product price:  $5.59
/pk 25, $0.22/ea
Midwest Fastener Acorn Nut, 1/4"-20, Steel, Nickel Plated, 100 PK 03790
Midwest Fastener

Acorn Nut, 1/4"-20, Steel, Nickel Plated, 100 PK

Zoro # G602519174
Mfr # 03790
product price:  $19.45
/pk 100, $0.19/ea
Zoro Select Cap Nut, 5/16", Steel, Zinc Plated, 0.44 in H, 25 PK 4CUJ2
Zoro Select

Cap Nut, 5/16", Steel, Zinc Plated, 0.44 in H, 25 PK

Zoro # G1679614
Mfr # 4CUJ2
product price:  $9.65
/pk 25, $0.39/ea
Midwest Fastener Acorn Nut, 1/4"-20, Nylon, 10 PK 62548
Midwest Fastener

Acorn Nut, 1/4"-20, Nylon, 10 PK

Zoro # G802520369
Mfr # 62548
product price:  $7.35
/pk 10, $0.74/ea
Prime-Line Cap Nut, 1/4"-20, 18-8 Stainless Steel, Plain, 25 PK 9077422
Prime-Line

Cap Nut, 1/4"-20, 18-8 Stainless Steel, Plain, 25 PK

Zoro # G700933797
Mfr # 9077422
product price:  $19.35
/pk 25, $0.77/ea
Zoro Select High Crown Cap Nut, M8-1.25, 18-8 Stainless Steel, Plain, 15 mm H, 50 PK M51400.080.0001
Zoro Select

High Crown Cap Nut, M8-1.25, 18-8 Stainless Steel, Plain, 15 mm H, 50 PK

Zoro # G9905038
Mfr # M51400.080.0001
product price:  $14.29
/pk 50, $0.29/ea
Zoro Select Standard Crown Cap Nut, #10-32, Nylon, Plain, 13/32 in H, 25 PK 0501032CN
Zoro Select

Standard Crown Cap Nut, #10-32, Nylon, Plain, 13/32 in H, 25 PK

Zoro # G2862745
Mfr # 0501032CN
product price:  $6.59
/pk 25, $0.26/ea
Zoro Select Standard Crown Cap Nut, #10-24, Steel, Nickel Plated, 13/32 in H, 100 PK DNI-10P5-100BX
Zoro Select

Standard Crown Cap Nut, #10-24, Steel, Nickel Plated, 13/32 in H, 100 PK

Zoro # G3430007
Mfr # DNI-10P5-100BX
product price:  $9.95
/pk 100, $0.10/ea
Zoro Select Low Crown Cap Nut, 3/8"-16, Steel, Zinc Plated, 5/8 in H, 10 PK CPB188
Zoro Select

Low Crown Cap Nut, 3/8"-16, Steel, Zinc Plated, 5/8 in H, 10 PK

Zoro # G2518826
Mfr # CPB188
product price:  $5.79
/pk 10, $0.58/ea
Ampg Acorn Nut, 1/2"-13, Steel, Black Oxide, 15/16 in H Z0297
Ampg

Acorn Nut, 1/2"-13, Steel, Black Oxide, 15/16 in H

Zoro # G0642299
Mfr # Z0297
product price:  $8.99
/ea
Midwest Fastener Acorn Nut, 1/4"-20, Solid Brass, 20 PK 61065
Midwest Fastener

Acorn Nut, 1/4"-20, Solid Brass, 20 PK

Zoro # G402521124
Mfr # 61065
product price:  $20.55
/pk 20, $1.03/ea
Zoro Select Cap Nut, 3/8"-16, 18-8 Stainless Steel, Plain, 5/8 in H, 5 PK CPB036
Zoro Select

Cap Nut, 3/8"-16, 18-8 Stainless Steel, Plain, 5/8 in H, 5 PK

Zoro # G2175275
Mfr # CPB036
product price:  $14.39
/pk 5, $2.88/ea
Midwest Fastener High Crown Cap Nut, 1/4"-20, 18-8 Stainless Steel, Polished, 8 PK 33422
Midwest Fastener

High Crown Cap Nut, 1/4"-20, 18-8 Stainless Steel, Polished, 8 PK

Zoro # G402515802
Mfr # 33422
product price:  $20.75
/pk 8, $2.59/ea
Midwest Fastener Acorn Nut, 5/8"-11, Steel, Chrome Plated, 3 PK 34387
Midwest Fastener

Acorn Nut, 5/8"-11, Steel, Chrome Plated, 3 PK

Zoro # G002516018
Mfr # 34387
product price:  $23.15
/pk 3, $7.72/ea
Midwest Fastener Acorn Nut, 7/16"-14, 18-8 Stainless Steel, 4 PK 79032
Midwest Fastener

Acorn Nut, 7/16"-14, 18-8 Stainless Steel, 4 PK

Zoro # G402523029
Mfr # 79032
product price:  $11.99
/pk 4, $3.00/ea
Midwest Fastener High Crown Cap Nut, 7/16"-14, Steel, Chrome Plated, 10 PK 74325
Midwest Fastener

High Crown Cap Nut, 7/16"-14, Steel, Chrome Plated, 10 PK

Zoro # G602521702
Mfr # 74325
product price:  $43.59
/pk 10, $4.36/ea
Kipp Cap Nut, M16, Stainless Steel, Polished K1328.16
Kipp

Cap Nut, M16, Stainless Steel, Polished

Zoro # G502198257
Mfr # K1328.16
product price:  $25.65
/ea
Zoro Select High Crown Cap Nut, 1/2"-13, Steel, Plain, 1-1/32 in H, 3 PK CPB114
Zoro Select

High Crown Cap Nut, 1/2"-13, Steel, Plain, 1-1/32 in H, 3 PK

Zoro # G0875603
Mfr # CPB114
product price:  $6.19
/pk 3, $2.06/ea
Zoro Select High Crown Cap Nut, 3/8"-16, 18-8 Stainless Steel, Plain, 25/32 in H Z0326-188
Zoro Select

High Crown Cap Nut, 3/8"-16, 18-8 Stainless Steel, Plain, 25/32 in H

Zoro # G4526977
Mfr # Z0326-188
product price:  $10.99
/ea
Midwest Fastener High Crown Cap Nut, 1/4"-20, 18-8 Stainless Steel, 10 PK 36785
Midwest Fastener

High Crown Cap Nut, 1/4"-20, 18-8 Stainless Steel, 10 PK

Zoro # G102517854
Mfr # 36785
product price:  $30.49
/pk 10, $3.05/ea
Midwest Fastener Acorn Nut, #10-24, 18-8 Stainless Steel, 50 PK 50709
Midwest Fastener

Acorn Nut, #10-24, 18-8 Stainless Steel, 50 PK

Zoro # G202514937
Mfr # 50709
product price:  $36.69
/pk 50, $0.73/ea
Prime-Line Cap Nut, #8-32, Brass, Brass, 10 PK 9077104
Prime-Line

Cap Nut, #8-32, Brass, Brass, 10 PK

Zoro # G900933689
Mfr # 9077104
product price:  $10.29
/pk 10, $1.03/ea
Zoro Select Standard Crown Cap Nut, M8-1.25, Nylon, Plain, 15 mm H, 10 PK 05M080125CN
Zoro Select

Standard Crown Cap Nut, M8-1.25, Nylon, Plain, 15 mm H, 10 PK

Zoro # G0603714
Mfr # 05M080125CN
product price:  $3.39
/pk 10, $0.34/ea
Huyett Acorn Nut, 3/8-16, 300 Series Stainless Steel, Plain, 5/8 in H NUTC00-0375-0625304P
Huyett

Acorn Nut, 3/8-16, 300 Series Stainless Steel, Plain, 5/8 in H

Zoro # G113330978
Mfr # NUTC00-0375-0625304P
product price:  $0.30
/ea
Sold in mult. of 45 for $13.50
Midwest Fastener Acorn Nut, 3/8"-16, 18-8 Stainless Steel, 25 PK 50713
Midwest Fastener

Acorn Nut, 3/8"-16, 18-8 Stainless Steel, 25 PK

Zoro # G602515503
Mfr # 50713
product price:  $51.49
/pk 25, $2.06/ea
Zoro Select Standard Crown Cap Nut, 1/4"-20, 18-8 Stainless Steel, Plain, 19/32 in H, 10 PK CPB023
CAD Files Available
Zoro Select

Standard Crown Cap Nut, 1/4"-20, 18-8 Stainless Steel, Plain, 19/32 in H, 10 PK

Zoro # G2933707
Mfr # CPB023
product price:  $12.39
/pk 10, $1.24/ea
York Acorn Nut, #8-32, 4 PK S1-363-90117-700
York

Acorn Nut, #8-32, 4 PK

Zoro # G9209460
Mfr # S1-363-90117-700
product price:  $30.09
/pk 4, $7.52/ea
Morton Acorn Nut, 7/8"-9, Stainless Steel, Plain, 1-5/8 in H AN-5SS
Morton

Acorn Nut, 7/8"-9, Stainless Steel, Plain, 1-5/8 in H

Zoro # G9869454
Mfr # AN-5SS
product price:  $18.89
/ea
Sold in mult. of 2 for $37.78
Midwest Fastener Acorn Nut, 1/2"-13, 18-8 Stainless Steel, 10 PK 50714
Midwest Fastener

Acorn Nut, 1/2"-13, 18-8 Stainless Steel, 10 PK

Zoro # G002515547
Mfr # 50714
product price:  $29.95
/pk 10, $3.00/ea
Midwest Fastener Acorn Nut, 5/8"-18, 18-8 Stainless Steel, 2 PK 33807
Midwest Fastener

Acorn Nut, 5/8"-18, 18-8 Stainless Steel, 2 PK

Zoro # G702517926
Mfr # 33807
product price:  $24.69
/pk 2, $12.35/ea
Zoro Select High Crown Cap Nut, M16-2.00, Steel, Zinc Plated, 28 mm H, 25 PK M16510.160.0001
Zoro Select

High Crown Cap Nut, M16-2.00, Steel, Zinc Plated, 28 mm H, 25 PK

Zoro # G1941235
Mfr # M16510.160.0001
product price:  $29.79
/pk 25, $1.19/ea
Prime-Line Cap Nut, 1/2"-13, Steel, Zinc Plated, 25 PK 9077614
Prime-Line

Cap Nut, 1/2"-13, Steel, Zinc Plated, 25 PK

Zoro # G300933920
Mfr # 9077614
product price:  $20.65
/pk 25, $0.83/ea
Zoro Select High Crown Flattened Head Cap Nut, 3/8"-16, Aluminum, Plain, 1-9/16 in H Z0333-ALU
Zoro Select

High Crown Flattened Head Cap Nut, 3/8"-16, Aluminum, Plain, 1-9/16 in H

Zoro # G4524344
Mfr # Z0333-ALU
product price:  $9.99
/ea
Morton Acorn Nut, 1/2"-13, Carbon Steel, Black Oxide, 15/16 in H AN-2
Morton

Acorn Nut, 1/2"-13, Carbon Steel, Black Oxide, 15/16 in H

Zoro # G9860040
Mfr # AN-2
product price:  $6.15
/ea
Sold in mult. of 8 for $49.20
Midwest Fastener Acorn Nut, 3/8"-24, 18-8 Stainless Steel, 6 PK 33804
Midwest Fastener

Acorn Nut, 3/8"-24, 18-8 Stainless Steel, 6 PK

Zoro # G602518016
Mfr # 33804
product price:  $16.75
/pk 6, $2.79/ea
Cap Nuts & Acorn Nuts (592 items)
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About Cap Nuts & Acorn Nuts

Acorn Nuts are a type of fastener commonly used for applications that require a secure, reliable hold. They come in a variety of sizes and materials, making them ideal for many different projects and tasks. Acorn cap nuts usually screw onto the exposed male end of fasteners, protecting the threads while creating a more finished look.

Types of Acorn Nuts

Acorn Nuts are available in a variety of materials, different sizes and unique properties that make it suitable for certain jobs or tasks. For instance, brass acorn nuts have excellent electrical conductivity while plastic acorn nuts offer superior corrosion resistance. Other types of acorn nuts are available to allow users to match certain aesthetics while fitting inside tight assemblies.

How Acorn Nuts are Made

Acorn Nuts are made using high-quality metals such as steel and brass which are then machined into the desired shape. The threads on the nuts are cut precisely to ensure that they fit properly with the corresponding bolt or screw.

Industries that use Acorn Nuts

Acorn Nuts can be found in many industries including automotive manufacturing, electrical engineering, aerospace engineering and construction. Professionals in these industries use acorn nuts to securely fasten components together or to provide insulation from electricity.

Find the Acorn Nuts You Need at Zoro

Looking for a specific item? Use our robust search tool to find it by name or keyword, or use our handy filters to narrow down our full assortment. You can also check out our whole selection of fasteners, along with other tools or supplies to ensure you have all you need to tackle the job, especially if you're taking on a DIY project for the first time.
Plus, when you shop at Zoro, you'll always enjoy competitive prices on tons of great brands you know and trust. We make the shopping experience as fast and seamless as possible with free shipping on orders over $50 for registered users, Net 30 payment terms for qualifying customers, and an unparalleled customer service experience.

Related Categories

Lock NutsHex NutsCoupling NutsSpring Nuts & Cage NutsGeneral Washers
Machine ScrewsHex Head Cap ScrewsFully-Threaded Rods & StudsSocket Head Cap ScrewsLock Washers
1/2" acorn nut3/8-16 acorn nut10-24 square nut1 4 20 cap nut1/4 acorn nut
4-40 acorn3/8-16 stainless nut1/2-13 stainless nut5 16 acorn nut1/2-13 acorn nut

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