Featured Categories

  • Tools & Machining
  • Shipping, Packaging & Office Supplies
  • Plumbing
  • Safety

Shop Categories

  • Abrasives & Polishers
  • Adhesives & Tapes
  • Electrical Supplies
  • Electronics
  • Fasteners
  • Food Service & Restaurant Supplies
  • Furniture, Linens & Decor
  • Grounds & Outdoor
  • Hardware & Building Materials
  • Heating & Cooling
  • Janitorial & Cleaning Supplies
  • Lab Equipment & Supplies
  • Lighting
  • Material Handling
  • Medical & Personal Care
  • Paint, Coatings & Supplies
  • Plumbing
  • Power Transmission
  • Pumps
  • Raw Materials
  • Safety
  • Shipping, Packaging & Office Supplies
  • Storage & Workspace
  • Test Instruments & Gauges
  • Tools & Machining
  • Vehicle Maintenance
  • Welding, Soldering & Brazing
  • About Us
  • Promo Codes
  • Contact Us
Added to Cart
Skip to Main Content
FREE Shipping on orders over $50 after you . Restrictions Apply
Zoro Homepage
Close icon
Clipboard Icon Clipboard Icon Quick Order
Cart Icon
0
Cart Icon
0
Cart
  • Low prices on everyday needs. Shop Zoro Select
  • Don't miss these limited time offers. Shop All Deals
  • Get 30 days to pay with Net 30. Apply Now
  1. Home
  2. /
  3. Fasteners
  4. /
  5. Nuts
  6. /
  7. Cap Nuts & Acorn Nuts
Search Feedback

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, #8-32, Stainless Steel, 0.26 in H, 500 PK 08NC188
Zoro Select

Low Crown Cap Nut, #8-32, Stainless Steel, 0.26 in H, 500 PK

Zoro # G2436915
Mfr # 08NC188
product price:  $82.49
/pk 500, $0.16/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
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
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 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
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, M5-0.80, Stainless Steel, 50 PK 55137
Midwest Fastener

Acorn Nut, M5-0.80, Stainless Steel, 50 PK

Zoro # G302519399
Mfr # 55137
product price:  $11.35
/pk 50, $0.23/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 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
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
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 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
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
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
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
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 Low Crown Cap Nut, 5/16"-24, Brass, Plain, 17/32 in H, 10 PK CPB212
Zoro Select

Low Crown Cap Nut, 5/16"-24, Brass, Plain, 17/32 in H, 10 PK

Zoro # G1693535
Mfr # CPB212
product price:  $7.39
/pk 10, $0.74/ea
Sold in mult. of 2 for $14.78
Zoro Select High Crown Flattened Head Cap Nut, 1/2"-13, Aluminum, Plain, 1-1/32 in H Z0338-ALU
Zoro Select

High Crown Flattened Head Cap Nut, 1/2"-13, Aluminum, Plain, 1-1/32 in H

Zoro # G4631356
Mfr # Z0338-ALU
product price:  $11.69
/ea
Zoro Select High Crown Cap Nut, 1/2"-13, 18-8 Stainless Steel, Plain, 1-1/32 in H Z0334-188
Zoro Select

High Crown Cap Nut, 1/2"-13, 18-8 Stainless Steel, Plain, 1-1/32 in H

Zoro # G4523881
Mfr # Z0334-188
product price:  $13.29
/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
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
Midwest Fastener Acorn Nut, M6-1.00, Stainless Steel, 4 PK 69611
Midwest Fastener

Acorn Nut, M6-1.00, Stainless Steel, 4 PK

Zoro # G702519685
Mfr # 69611
product price:  $8.29
/pk 4, $2.07/ea
Zoro Select Extra Low Crown Cap Nut, 1/2"-13, Brass, Plain, 9/16 in H, 10 PK CPB056
Zoro Select

Extra Low Crown Cap Nut, 1/2"-13, Brass, Plain, 9/16 in H, 10 PK

Zoro # G0251072
Mfr # CPB056
product price:  $19.55
/pk 10, $1.96/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
Midwest Fastener 32 (Coarse), Solid Brass, 15 PK 61063
Midwest Fastener

32 (Coarse), Solid Brass, 15 PK

Zoro # G602520965
Mfr # 61063
product price:  $10.89
/pk 15, $0.73/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
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
Cap Nuts & Acorn Nuts (592 items)
  • 1
    of 17 pages
  • Next
  • Last

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 ScrewsSocket Head Cap ScrewsFully-Threaded Rods & StudsLock Washers
crown cap nutstainless steel cap nutlow crown cap nut1/2 in cap nut1/2" acorn nut
nylon acorn nutaccorn nuthigh crown cap nut3/8-16 acorn nutbrass acorn nut

Sign Up & Save

Take 10% off your next order when you sign up for Zoro emails. Subscribe now to receive your promo code via email.

Follow Us

  • Facebook
  • YouTube
  • LinkedIn
  • Instagram
Every Part Plays a Part

Information

  • About Us
  • Accessibility
  • Careers
  • Inclusion
  • Giving Back
  • Resource Hub
  • Returns
  • Shipping

Shopping

  • Brands
  • Collections
  • My Account
  • Payments
  • Promo Codes
  • Sitemap
  • Track My Order

Services

  • Customer Service
  • FAQs
  • Net 30 Terms
  • Reseller Program
  • Sell on Zoro
  • Participate in Research

Zoro, Inc

Connect

Customer Service From Real People

  • Phone: (855) 289-9676
  • Contact Us

© 2011-2026 Zoro Tools, Inc. All rights reserved.
  • Terms & Conditions
  • Terms of Access
  • Privacy Policy
Zoro, Inc