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
  • Deals
  • Contact Us
Added to Cart
Skip to Main Content Accessibility Statement
FREE SHIPPING on orders over $50 after you . Restrictions Apply
Zoro Homepage
Close icon
Clipboard Icon Clipboard Icon Quick Order
User Headset Icon User Headset Icon Support
0
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. Lock Nuts

Lock Nuts (10,000+ items) - Page 24

Huyett Nylon Insert Lock Nut, #5-40, Stainless Steel, 18-8, Plain, 0.14 in Ht NUTH49-0005-0140188P
Huyett

Nylon Insert Lock Nut, #5-40, Stainless Steel, 18-8, Plain, 0.14 in Ht

Zoro # G013331327
Mfr # NUTH49-0005-0140188P
product price: 
$0.07
/ea
Sold in mult. of 241 for $16.87
X1 Tools 10-32 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 250PK X1E-FAS-NUT-LOC-3422x250
X1 Tools

10-32 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 250PK

Zoro # G122847702
Mfr # X1E-FAS-NUT-LOC-3422x250
product price: 
$26.19
/pk 250, $0.10/ea
Boltsandnuts.Com Top Lock Lock Nut, M12-1.75, Class 10, Zinc Plated, 10 PK M12CPTN10Z-10
Boltsandnuts.Com

Top Lock Lock Nut, M12-1.75, Class 10, Zinc Plated, 10 PK

Zoro # G214495316
Mfr # M12CPTN10Z-10
product price: 
$8.96
/pk 10, $0.90/ea
X1 Tools M12 x 1.75 mm Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 6PK X1E-FAS-NUT-LOC-1648x6
X1 Tools

M12 x 1.75 mm Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 6PK

Zoro # G922855716
Mfr # X1E-FAS-NUT-LOC-1648x6
product price: 
$7.35
/pk 6, $1.22/ea
Sold in mult. of 2 for $14.70
X1 Tools 7/16-14 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 2PK X1E-FAS-NUT-LOC-3438x2
X1 Tools

7/16-14 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 2PK

Zoro # G322861171
Mfr # X1E-FAS-NUT-LOC-3438x2
product price: 
$1.15
/pk 2, $0.58/ea
Sold in mult. of 9 for $10.35
Boltsandnuts.Com Top Lock Lock Nut, M20-1.5, Class 10, Zinc Plated, 4 PK M20EFPTN10Z-4
Boltsandnuts.Com

Top Lock Lock Nut, M20-1.5, Class 10, Zinc Plated, 4 PK

Zoro # G214495965
Mfr # M20EFPTN10Z-4
product price: 
$18.25
/pk 4, $4.56/ea
Zoro Select Nylon Insert Lock Nut, 1"-8, Nylon, Zinc Plated, 0.825 in Ht, 50 PK 100NST
Zoro Select

Nylon Insert Lock Nut, 1"-8, Nylon, Zinc Plated, 0.825 in Ht, 50 PK

Zoro # G2451125
Mfr # 100NST
product price: 
$137.99
/pk 50, $2.76/ea
X1 Tools M12 x 1.75 mm Corrosion-Resistant 316 Stainless Steel Nylon-Insert Locknuts, 200PK X1E-FAS-NUT-LOC-2386x200
X1 Tools

M12 x 1.75 mm Corrosion-Resistant 316 Stainless Steel Nylon-Insert Locknuts, 200PK

Zoro # G622853555
Mfr # X1E-FAS-NUT-LOC-2386x200
product price: 
$780.99
/pk 200, $3.90/ea
X1 Tools M5 x 0.8 mm Hi-Performance Yellow Zinc Plated Steel Nylon-Insert Locknuts, 4PK X1E-FAS-NUT-LOC-1514x4
X1 Tools

M5 x 0.8 mm Hi-Performance Yellow Zinc Plated Steel Nylon-Insert Locknuts, 4PK

Zoro # G722856425
Mfr # X1E-FAS-NUT-LOC-1514x4
product price: 
$2.15
/pk 4, $0.54/ea
Sold in mult. of 5 for $10.75
Oxoxo 10-24-2 Self Clinching Nut 303 Stainless Steel, 5000PK 304588
Oxoxo

10-24-2 Self Clinching Nut 303 Stainless Steel, 5000PK

Zoro # G822680722
Mfr # 304588
product price: 
$3,574.99
/pk 5000, $0.71/ea
Erickson Locknut/Stopscrew, SEALING RING CDER16065M
Erickson

Locknut/Stopscrew, SEALING RING

Zoro # G3587672
Mfr # CDER16065M
product price: 
$41.19
/ea
Newport Fasteners Nylon Insert Lock Nut, #10-32, 316 Stainless Steel, Not Graded, 100 PK 296695-PR-100
Newport Fasteners

Nylon Insert Lock Nut, #10-32, 316 Stainless Steel, Not Graded, 100 PK

Zoro # G606327669
Mfr # 296695-PR-100
product price: 
$35.15
/pk 100, $0.35/ea
X1 Tools M12 x 1.25 mm Ultra Hi Performance Zinc-Plated Steel Nylon-Insert Locknuts, 500PK X1E-FAS-NUT-LOC-1126x500
X1 Tools

M12 x 1.25 mm Ultra Hi Performance Zinc-Plated Steel Nylon-Insert Locknuts, 500PK

Zoro # G522847111
Mfr # X1E-FAS-NUT-LOC-1126x500
product price: 
$1,376.99
/pk 500, $2.75/ea
X1 Tools 8-32 Lightweight 6061 Aluminum Nylon-Insert Locknuts, 20PK X1E-FAS-NUT-LOC-2610x20
X1 Tools

8-32 Lightweight 6061 Aluminum Nylon-Insert Locknuts, 20PK

Zoro # G122853239
Mfr # X1E-FAS-NUT-LOC-2610x20
product price: 
$9.89
/pk 20, $0.49/ea
Huyett Nylon Insert Lock Nut, 7/16-20, Low Carbon Steel, Zinc Clear Trivalent, 0.312 in Ht NUTH65-0437-0312LC3
Huyett

Nylon Insert Lock Nut, 7/16-20, Low Carbon Steel, Zinc Clear Trivalent, 0.312 in Ht

Zoro # G113331067
Mfr # NUTH65-0437-0312LC3
product price: 
$0.13
/ea
Sold in mult. of 132 for $17.16
X1 Tools 7/16-20 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 120PK X1E-FAS-NUT-LOC-3024x120
X1 Tools

7/16-20 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 120PK

Zoro # G122850986
Mfr # X1E-FAS-NUT-LOC-3024x120
product price: 
$110.99
/pk 120, $0.92/ea
X1 Tools 3/8-24 Black-Oxide C.R. 18-8 Stainless Steel Nylon-Insert Locknuts, 4PK X1E-FAS-NUT-LOC-2242x4
X1 Tools

3/8-24 Black-Oxide C.R. 18-8 Stainless Steel Nylon-Insert Locknuts, 4PK

Zoro # G222867068
Mfr # X1E-FAS-NUT-LOC-2242x4
product price: 
$17.19
/pk 4, $4.30/ea
Boltsandnuts.Com Top Lock Lock Nut, M16-2.0, Class 8, Zinc Plated, 300 PK M16CFLN8Z-300
Boltsandnuts.Com

Top Lock Lock Nut, M16-2.0, Class 8, Zinc Plated, 300 PK

Zoro # G314494783
Mfr # M16CFLN8Z-300
product price: 
$490.99
/pk 300, $1.64/ea
X1 Tools 1/4-20 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 8PK X1E-FAS-NUT-LOC-1928x8
X1 Tools

1/4-20 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 8PK

Zoro # G122845371
Mfr # X1E-FAS-NUT-LOC-1928x8
product price: 
$1.69
/pk 8, $0.21/ea
Sold in mult. of 6 for $10.14
Oxoxo 5/16-18 K Lock Nut 18-8 Stainless Steel Nut, 420 Stainless Steel Washer, 1000PK 319658
Oxoxo

5/16-18 K Lock Nut 18-8 Stainless Steel Nut, 420 Stainless Steel Washer, 1000PK

Zoro # G822660779
Mfr # 319658
product price: 
$485.99
/pk 1000, $0.49/ea
Newport Fasteners Nylon Insert Lock Nut, #8-32, 316 Stainless Steel, Not Graded, 5000 PK 349495-BR-5000
Newport Fasteners

Nylon Insert Lock Nut, #8-32, 316 Stainless Steel, Not Graded, 5000 PK

Zoro # G906327949
Mfr # 349495-BR-5000
product price: 
$1,374.99
/pk 5000, $0.27/ea
X1 Tools 5/8-11 UHP Black-Oxide Grade 8 Steel Thin-Profile Nylon-Insert Locknuts X1E-FAS-NUT-LOC-3228x1
X1 Tools

5/8-11 UHP Black-Oxide Grade 8 Steel Thin-Profile Nylon-Insert Locknuts

Zoro # G722849977
Mfr # X1E-FAS-NUT-LOC-3228x1
product price: 
$10.69
/ea
Sold in mult. of 2 for $21.38
X1 Tools 1/2-13 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 12PK X1E-FAS-NUT-LOC-2024x12
X1 Tools

1/2-13 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 12PK

Zoro # G822845862
Mfr # X1E-FAS-NUT-LOC-2024x12
product price: 
$65.85
/pk 12, $5.49/ea
X1 Tools 7/16-14 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 500PK X1E-FAS-NUT-LOC-1940x500
X1 Tools

7/16-14 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 500PK

Zoro # G722851413
Mfr # X1E-FAS-NUT-LOC-1940x500
product price: 
$149.99
/pk 500, $0.30/ea
X1 Tools 3/8-24 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 250PK X1E-FAS-NUT-LOC-2130x250
X1 Tools

3/8-24 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 250PK

Zoro # G222846018
Mfr # X1E-FAS-NUT-LOC-2130x250
product price: 
$192.99
/pk 250, $0.77/ea
X1 Tools 4-40 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 50PK X1E-FAS-NUT-LOC-2114x50
X1 Tools

4-40 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 50PK

Zoro # G722862594
Mfr # X1E-FAS-NUT-LOC-2114x50
product price: 
$11.19
/pk 50, $0.22/ea
Sold in mult. of 2 for $22.38
Boltsandnuts.Com Serrated Lock Nut, 1/4"-28, Steel, Zinc Plated, 400 PK 25FSLN2Z-400
Boltsandnuts.Com

Serrated Lock Nut, 1/4"-28, Steel, Zinc Plated, 400 PK

Zoro # G314447598
Mfr # 25FSLN2Z-400
product price: 
$46.45
/pk 400, $0.12/ea
X1 Tools 5/16-18 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 150PK X1E-FAS-NUT-LOC-3724x150
X1 Tools

5/16-18 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 150PK

Zoro # G522853235
Mfr # X1E-FAS-NUT-LOC-3724x150
product price: 
$64.79
/pk 150, $0.43/ea
X1 Tools 5/8-11 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 15PK X1E-FAS-NUT-LOC-1034x15
X1 Tools

5/8-11 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 15PK

Zoro # G122846620
Mfr # X1E-FAS-NUT-LOC-1034x15
product price: 
$51.45
/pk 15, $3.43/ea
X1 Tools 10-32 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 75PK X1E-FAS-NUT-LOC-3718x75
X1 Tools

10-32 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 75PK

Zoro # G222856208
Mfr # X1E-FAS-NUT-LOC-3718x75
product price: 
$21.39
/pk 75, $0.29/ea
X1 Tools 5/8-18 Ultra Hi Performance Black-Oxide Steel Nylon-Insert Locknuts, 2PK X1E-FAS-NUT-LOC-1236x2
X1 Tools

5/8-18 Ultra Hi Performance Black-Oxide Steel Nylon-Insert Locknuts, 2PK

Zoro # G222849309
Mfr # X1E-FAS-NUT-LOC-1236x2
product price: 
$12.29
/pk 2, $6.15/ea
Sold in mult. of 2 for $24.58
Newport Fasteners Nylon Insert Lock Nut, #4-40, Steel, Black Oxide, 2000 PK 490548
Newport Fasteners

Nylon Insert Lock Nut, #4-40, Steel, Black Oxide, 2000 PK

Zoro # G306327884
Mfr # 490548
product price: 
$267.99
/pk 2000, $0.13/ea
Aceds 0.5 in. Stainless Steel Lock Nut, 25PK 59555
Aceds

0.5 in. Stainless Steel Lock Nut, 25PK

Zoro # G010660260
Mfr # 59555
product price: 
$67.45
/pk 25, $2.70/ea
Newport Fasteners Serrated Lock Nut, 3/8"-16, 18-8 Stainless Steel, Not Graded, 0.23 in Ht, 500 PK 248512
Newport Fasteners

Serrated Lock Nut, 3/8"-16, 18-8 Stainless Steel, Not Graded, 0.23 in Ht, 500 PK

Zoro # G006308718
Mfr # 248512
product price: 
$444.99
/pk 500, $0.89/ea
X1 Tools 5/8-18 Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 12PK X1E-FAS-NUT-LOC-1623x12
X1 Tools

5/8-18 Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 12PK

Zoro # G122844862
Mfr # X1E-FAS-NUT-LOC-1623x12
product price: 
$24.19
/pk 12, $2.02/ea
Oxoxo 1/4-28 K Lock Nut Zinc and Bake, 2000PK 172954
Oxoxo

1/4-28 K Lock Nut Zinc and Bake, 2000PK

Zoro # G622660238
Mfr # 172954
product price: 
$208.99
/pk 2000, $0.10/ea
Lock Nuts (10,000+ items) - Page 24
  • First
  • Previous
  • 24
    of 277 pages
  • Next
  • Last
How was your search?

About Lock Nuts

Lock Nuts are a type of fastener that is designed to prevent a nut from coming loose when it is secured with a bolt. They are usually threaded and tightened onto the bolt to create a secure connection, which helps keep the nuts from vibrating off. Lock Nuts come in many different varieties and can be used in any number of applications.

Types of Lock Nuts

The most common types of lock nuts are nylock flange nuts, stainless steel lock nuts, and steel lock nuts. Depending on the application they will be used for, they can vary in size, shape, threading type, material composition or even locking mechanism.

How Lock Nuts are Made

Lock Nuts are typically made using either metal or plastic components and have threads cut into them so that they can be screwed onto bolts. They also often include an additional locking element such as an O-ring or nylon insert to help prevent loosening due to vibration or shock.

Industries that use Lock Nuts

Lock Nuts are commonly used in industries such as automotive repair, manufacturing, construction and plumbing. Professionals who work in these fields rely on these fasteners to securely hold parts together during assembly processes and repairs.

Find the Lock 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

Hex NutsFlange NutsCoupling NutsWing NutsGeneral Washers
Hex Head Cap ScrewsSocket Head Cap ScrewsMachine ScrewsLock WashersSelf-Tapping Screws
1/2" flange lock nut3/8-16 nuts stainless steellock nut 5/16-181/4" locking nutnylon insert hex nut
5/16-24 nutsnylon-insert locknutsn-10 lock nut5/16-18 nylon locking nut10mm nuts

Sign up and 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
  • Deals
  • Sitemap
  • Track My Order

Services

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

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