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 181

X1 Tools 5/16-18 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts X1E-FAS-NUT-LOC-2127x1
X1 Tools

5/16-18 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts

Zoro # G222857151
Mfr # X1E-FAS-NUT-LOC-2127x1
product price: 
$1.15
/ea
Sold in mult. of 9 for $10.35
X1 Tools 7/8-14 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 100PK X1E-FAS-NUT-LOC-1962x100
X1 Tools

7/8-14 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 100PK

Zoro # G222863923
Mfr # X1E-FAS-NUT-LOC-1962x100
product price: 
$339.99
/pk of 100, $3.40/ea
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 of 1000, $0.49/ea
Oxoxo 4-40-1 Self Clinching Nut 303 Stainless Steel, 5000PK 304481
Oxoxo

4-40-1 Self Clinching Nut 303 Stainless Steel, 5000PK

Zoro # G022691603
Mfr # 304481
product price: 
$2,166.99
/pk of 5000, $0.43/ea
X1 Tools 7/8-14 Hi Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 12PK X1E-FAS-NUT-LOC-3318x12
X1 Tools

7/8-14 Hi Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 12PK

Zoro # G422858002
Mfr # X1E-FAS-NUT-LOC-3318x12
product price: 
$163.99
/pk of 12, $13.67/ea
X1 Tools 5/16-24 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 25PK X1E-FAS-NUT-LOC-1934x25
X1 Tools

5/16-24 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 25PK

Zoro # G222861790
Mfr # X1E-FAS-NUT-LOC-1934x25
product price: 
$5.15
/pk of 25, $0.21/ea
Sold in mult. of 2 pks for $10.30
X1 Tools 6-32 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 150PK X1E-FAS-NUT-LOC-2010x150
X1 Tools

6-32 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 150PK

Zoro # G022845761
Mfr # X1E-FAS-NUT-LOC-2010x150
product price: 
$522.99
/pk of 150, $3.49/ea
X1 Tools 3/4-16 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 75PK X1E-FAS-NUT-LOC-2140x75
X1 Tools

3/4-16 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 75PK

Zoro # G722846938
Mfr # X1E-FAS-NUT-LOC-2140x75
product price: 
$387.99
/pk of 75, $5.17/ea
X1 Tools 7/16-14 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 50PK X1E-FAS-NUT-LOC-3438x50
X1 Tools

7/16-14 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 50PK

Zoro # G922857611
Mfr # X1E-FAS-NUT-LOC-3438x50
product price: 
$18.19
/pk of 50, $0.36/ea
X1 Tools 3/4-16 UHP Black-Oxide Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 150PK X1E-FAS-NUT-LOC-3232x150
X1 Tools

3/4-16 UHP Black-Oxide Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 150PK

Zoro # G222852224
Mfr # X1E-FAS-NUT-LOC-3232x150
product price: 
$1,087.99
/pk of 150, $7.25/ea
X1 Tools 4-40 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 25PK X1E-FAS-NUT-LOC-3412x25
X1 Tools

4-40 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 25PK

Zoro # G722863720
Mfr # X1E-FAS-NUT-LOC-3412x25
product price: 
$10.39
/pk of 25, $0.42/ea
Sold in mult. of 2 pks for $20.78
X1 Tools 1/2-20 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 10PK X1E-FAS-NUT-LOC-1028x10
X1 Tools

1/2-20 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 10PK

Zoro # G122844350
Mfr # X1E-FAS-NUT-LOC-1028x10
product price: 
$20.49
/pk of 10, $2.05/ea
X1 Tools 6-32 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 4PK X1E-FAS-NUT-LOC-2117x4
X1 Tools

6-32 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 4PK

Zoro # G722847782
Mfr # X1E-FAS-NUT-LOC-2117x4
product price: 
$1.15
/pk of 4, $0.29/ea
Sold in mult. of 8 pks for $9.20
Newport Fasteners Nylon Insert Lock Nut, 3/4"-10, 18-8 Stainless Steel, Not Graded, 400 PK 590240-BR-400
Newport Fasteners

Nylon Insert Lock Nut, 3/4"-10, 18-8 Stainless Steel, Not Graded, 400 PK

Zoro # G406329498
Mfr # 590240-BR-400
product price: 
$1,147.99
/pk of 400, $2.87/ea
Zoro Select 1/4-20X5/8 Conical K Lock Hex Nut Zinc And Bake, 2500Pk 1410NKC
Zoro Select

1/4-20X5/8 Conical K Lock Hex Nut Zinc And Bake, 2500Pk

Zoro # G015622843
Mfr # 1410NKC
product price: 
$614.99
/pk of 2500, $0.25/ea
X1 Tools 6-32 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 200PK X1E-FAS-NUT-LOC-3712x200
X1 Tools

6-32 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 200PK

Zoro # G022849615
Mfr # X1E-FAS-NUT-LOC-3712x200
product price: 
$49.39
/pk of 200, $0.25/ea
X1 Tools 3/8-24 Black-Oxide C.R. 18-8 Stainless Steel Nylon-Insert Locknuts, 8PK X1E-FAS-NUT-LOC-2242x8
X1 Tools

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

Zoro # G422867462
Mfr # X1E-FAS-NUT-LOC-2242x8
product price: 
$29.49
/pk of 8, $3.69/ea
X1 Tools 6-32 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 25PK X1E-FAS-NUT-LOC-3712x25
X1 Tools

6-32 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 25PK

Zoro # G722863539
Mfr # X1E-FAS-NUT-LOC-3712x25
product price: 
$10.95
/pk of 25, $0.44/ea
Sold in mult. of 2 pks for $21.90
Oxoxo M10-1.5 Din 985 Metric Class 8 Nylon Insert Hex Locknut Black Oxide and Oil, 500PK 558600
Oxoxo

M10-1.5 Din 985 Metric Class 8 Nylon Insert Hex Locknut Black Oxide and Oil, 500PK

Zoro # G322700548
Mfr # 558600
product price: 
$129.99
/pk of 500, $0.26/ea
X1 Tools 1/2-13 Corrosion-Resistant 316 Stainless Steel Nylon-Insert Locknuts, 20PK X1E-FAS-NUT-LOC-2340x20
X1 Tools

1/2-13 Corrosion-Resistant 316 Stainless Steel Nylon-Insert Locknuts, 20PK

Zoro # G222867327
Mfr # X1E-FAS-NUT-LOC-2340x20
product price: 
$44.89
/pk of 20, $2.24/ea
X1 Tools 9/16-12 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 20PK X1E-FAS-NUT-LOC-3446x20
X1 Tools

9/16-12 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 20PK

Zoro # G122862415
Mfr # X1E-FAS-NUT-LOC-3446x20
product price: 
$14.19
/pk of 20, $0.71/ea
X1 Tools 5-40 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 100PK X1E-FAS-NUT-LOC-1916x100
X1 Tools

5-40 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 100PK

Zoro # G022857078
Mfr # X1E-FAS-NUT-LOC-1916x100
product price: 
$14.19
/pk of 100, $0.14/ea
X1 Tools 1 1/4-7 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 6PK X1E-FAS-NUT-LOC-1970x6
X1 Tools

1 1/4-7 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 6PK

Zoro # G022852264
Mfr # X1E-FAS-NUT-LOC-1970x6
product price: 
$108.99
/pk of 6, $18.17/ea
X1 Tools 1/2-13 Ultra Hi Performance Black-Oxide Steel Nylon-Insert Locknuts, 400PK X1E-FAS-NUT-LOC-1226x400
X1 Tools

1/2-13 Ultra Hi Performance Black-Oxide Steel Nylon-Insert Locknuts, 400PK

Zoro # G922844611
Mfr # X1E-FAS-NUT-LOC-1226x400
product price: 
$780.99
/pk of 400, $1.95/ea
X1 Tools M8 x 1.25 mm Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 12PK X1E-FAS-NUT-LOC-3484x12
X1 Tools

M8 x 1.25 mm Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 12PK

Zoro # G622864469
Mfr # X1E-FAS-NUT-LOC-3484x12
product price: 
$35.65
/pk of 12, $2.97/ea
Oxoxo 1/4-20 K Lock Nut 18 8 Stainless Steel Black Oxide and Oil, 1000PK 440266
Oxoxo

1/4-20 K Lock Nut 18 8 Stainless Steel Black Oxide and Oil, 1000PK

Zoro # G122665429
Mfr # 440266
product price: 
$479.99
/pk of 1000, $0.48/ea
Newport Fasteners Nylon Insert Lock Nut, 1-1/4"-7, Steel, Grade A, Zinc Plated, 10 PK 120348-PR-10
Newport Fasteners

Nylon Insert Lock Nut, 1-1/4"-7, Steel, Grade A, Zinc Plated, 10 PK

Zoro # G306327990
Mfr # 120348-PR-10
product price: 
$112.99
/pk of 10, $11.30/ea
Newport Fasteners Nylon Insert Lock Nut, M27-3.00, Steel, Class 8, Zinc Plated, 25 PK 526975-PR-25
Newport Fasteners

Nylon Insert Lock Nut, M27-3.00, Steel, Class 8, Zinc Plated, 25 PK

Zoro # G106329842
Mfr # 526975-PR-25
product price: 
$271.99
/pk of 25, $10.88/ea
Oxoxo M5-0.8 Metric Din 982 Hex Nylon Insert Locknut High Type A2 Stainless Steel, 4000PK 593971
Oxoxo

M5-0.8 Metric Din 982 Hex Nylon Insert Locknut High Type A2 Stainless Steel, 4000PK

Zoro # G522694074
Mfr # 593971
product price: 
$338.99
/pk of 4000, $0.08/ea
X1 Tools 3/8-24 Black-Oxide Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts X1E-FAS-NUT-LOC-3826x1
X1 Tools

3/8-24 Black-Oxide Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts

Zoro # G822853324
Mfr # X1E-FAS-NUT-LOC-3826x1
product price: 
$1.89
/ea
Sold in mult. of 5 for $9.45
X1 Tools M18 x 2.5 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 4PK X1E-FAS-NUT-LOC-1988x4
X1 Tools

M18 x 2.5 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 4PK

Zoro # G522849542
Mfr # X1E-FAS-NUT-LOC-1988x4
product price: 
$15.15
/pk of 4, $3.79/ea
X1 Tools 1/4-20 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 250PK X1E-FAS-NUT-LOC-2125x250
X1 Tools

1/4-20 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 250PK

Zoro # G622845529
Mfr # X1E-FAS-NUT-LOC-2125x250
product price: 
$75.99
/pk of 250, $0.30/ea
X1 Tools 10-32 Corrosion-Resistant 316 Stainless Steel Nylon-Insert Locknuts, 150PK X1E-FAS-NUT-LOC-2320x150
X1 Tools

10-32 Corrosion-Resistant 316 Stainless Steel Nylon-Insert Locknuts, 150PK

Zoro # G022865387
Mfr # X1E-FAS-NUT-LOC-2320x150
product price: 
$44.59
/pk of 150, $0.30/ea
X1 Tools 7/8-9 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 4PK X1E-FAS-NUT-LOC-3750x4
X1 Tools

7/8-9 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 4PK

Zoro # G322860273
Mfr # X1E-FAS-NUT-LOC-3750x4
product price: 
$87.25
/pk of 4, $21.81/ea
Newport Fasteners Nylon Insert Lock Nut, 3/8"-16, 18-8 Stainless Steel, Not Graded, 2500 PK 903529-BR-2500
Newport Fasteners

Nylon Insert Lock Nut, 3/8"-16, 18-8 Stainless Steel, Not Graded, 2500 PK

Zoro # G306331867
Mfr # 903529-BR-2500
product price: 
$662.99
/pk of 2500, $0.27/ea
X1 Tools 7/8-14 UHP Black-Oxide Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 120PK X1E-FAS-NUT-LOC-3234x120
X1 Tools

7/8-14 UHP Black-Oxide Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 120PK

Zoro # G922844659
Mfr # X1E-FAS-NUT-LOC-3234x120
product price: 
$1,328.99
/pk of 120, $11.07/ea
Lock Nuts (10,000+ items) - Page 181
  • First
  • Previous
  • 181
    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