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. Lock Nuts
Search Feedback

Lock Nuts (9,000+ items) - Page 149

X1 Tools 1/2-13 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 2PK X1E-FAS-NUT-LOC-2024x2
X1 Tools

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

Zoro # G822849563
Mfr # X1E-FAS-NUT-LOC-2024x2
product price:  $16.55
/pk 2, $8.28/ea
X1 Tools 5/16-18 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts X1E-FAS-NUT-LOC-3918x1
X1 Tools

5/16-18 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts

Zoro # G322863892
Mfr # X1E-FAS-NUT-LOC-3918x1
product price:  $1.55
/ea
X1 Tools 7/8-14 Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 10PK X1E-FAS-NUT-LOC-1627x10
X1 Tools

7/8-14 Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 10PK

Zoro # G622862113
Mfr # X1E-FAS-NUT-LOC-1627x10
product price:  $49.35
/pk 10, $4.94/ea
X1 Tools 4-40 Performance Zinc-Plated Steel Nylon-Insert Locknuts X1E-FAS-NUT-LOC-1914x1
X1 Tools

4-40 Performance Zinc-Plated Steel Nylon-Insert Locknuts

Zoro # G522846190
Mfr # X1E-FAS-NUT-LOC-1914x1
product price:  $0.56
/ea
X1 Tools 1/4-20 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 100PK X1E-FAS-NUT-LOC-3914x100
X1 Tools

1/4-20 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 100PK

Zoro # G722846709
Mfr # X1E-FAS-NUT-LOC-3914x100
product price:  $69.35
/pk 100, $0.69/ea
X1 Tools 1/2-20 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 400PK X1E-FAS-NUT-LOC-3932x400
X1 Tools

1/2-20 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 400PK

Zoro # G722867452
Mfr # X1E-FAS-NUT-LOC-3932x400
product price:  $1,027.99
/pk 400, $2.57/ea
X1 Tools 10-32 Corrosion-Resistant 316 Stainless Steel Nylon-Insert Locknuts X1E-FAS-NUT-LOC-2320x1
X1 Tools

10-32 Corrosion-Resistant 316 Stainless Steel Nylon-Insert Locknuts

Zoro # G122863986
Mfr # X1E-FAS-NUT-LOC-2320x1
product price:  $0.79
/ea
X1 Tools 1/2-13 Ultra Hi Performance Black-Oxide Steel Nylon-Insert Locknuts, 15PK X1E-FAS-NUT-LOC-1226x15
X1 Tools

1/2-13 Ultra Hi Performance Black-Oxide Steel Nylon-Insert Locknuts, 15PK

Zoro # G322846529
Mfr # X1E-FAS-NUT-LOC-1226x15
product price:  $28.59
/pk 15, $1.91/ea
X1 Tools 12-24 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 25PK X1E-FAS-NUT-LOC-3424x25
X1 Tools

12-24 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 25PK

Zoro # G622860416
Mfr # X1E-FAS-NUT-LOC-3424x25
product price:  $5.55
/pk 25, $0.22/ea
X1 Tools M4 x 0.7 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 15PK X1E-FAS-NUT-LOC-1972x15
X1 Tools

M4 x 0.7 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 15PK

Zoro # G322857723
Mfr # X1E-FAS-NUT-LOC-1972x15
product price:  $2.59
/pk 15, $0.17/ea
X1 Tools 5/8-11 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 20PK X1E-FAS-NUT-LOC-1952x20
X1 Tools

5/8-11 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 20PK

Zoro # G922858823
Mfr # X1E-FAS-NUT-LOC-1952x20
product price:  $29.79
/pk 20, $1.49/ea
X1 Tools 1-14 Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 50PK X1E-FAS-NUT-LOC-1629x50
X1 Tools

1-14 Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 50PK

Zoro # G022865905
Mfr # X1E-FAS-NUT-LOC-1629x50
product price:  $285.99
/pk 50, $5.72/ea
X1 Tools 3/8-24 Black-Oxide Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknut, 250PK X1E-FAS-NUT-LOC-3826x250
X1 Tools

3/8-24 Black-Oxide Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknut, 250PK

Zoro # G322860242
Mfr # X1E-FAS-NUT-LOC-3826x250
product price:  $264.99
/pk 250, $1.06/ea
X1 Tools 1/4-20 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 75PK X1E-FAS-NUT-LOC-2125x75
X1 Tools

1/4-20 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 75PK

Zoro # G522844578
Mfr # X1E-FAS-NUT-LOC-2125x75
product price:  $26.79
/pk 75, $0.36/ea
X1 Tools 3/4-16 Ultra Hi Performance Black-Oxide Steel Nylon-Insert Locknuts, 75PK X1E-FAS-NUT-LOC-1240x75
X1 Tools

3/4-16 Ultra Hi Performance Black-Oxide Steel Nylon-Insert Locknuts, 75PK

Zoro # G622845307
Mfr # X1E-FAS-NUT-LOC-1240x75
product price:  $289.99
/pk 75, $3.87/ea
X1 Tools 6-32 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 25PK X1E-FAS-NUT-LOC-3416x25
X1 Tools

6-32 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 25PK

Zoro # G122862118
Mfr # X1E-FAS-NUT-LOC-3416x25
product price:  $11.59
/pk 25, $0.46/ea
X1 Tools 1/2-13 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 150PK X1E-FAS-NUT-LOC-2024x150
X1 Tools

1/2-13 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 150PK

Zoro # G022852172
Mfr # X1E-FAS-NUT-LOC-2024x150
product price:  $712.99
/pk 150, $4.75/ea
X1 Tools 7/16-14 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 6PK X1E-FAS-NUT-LOC-1022x6
X1 Tools

7/16-14 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 6PK

Zoro # G622845949
Mfr # X1E-FAS-NUT-LOC-1022x6
product price:  $13.15
/pk 6, $2.19/ea
X1 Tools 10-32 Black-Oxide Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 75PK X1E-FAS-NUT-LOC-3818x75
X1 Tools

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

Zoro # G122866574
Mfr # X1E-FAS-NUT-LOC-3818x75
product price:  $45.69
/pk 75, $0.61/ea
X1 Tools 5/8-11 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 25PK X1E-FAS-NUT-LOC-1952x25
X1 Tools

5/8-11 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 25PK

Zoro # G822860179
Mfr # X1E-FAS-NUT-LOC-1952x25
product price:  $39.19
/pk 25, $1.57/ea
X1 Tools 1/2-13 Corrosion-Resistant 316 Stainless Steel Nylon-Insert Locknuts, 150PK X1E-FAS-NUT-LOC-2340x150
X1 Tools

1/2-13 Corrosion-Resistant 316 Stainless Steel Nylon-Insert Locknuts, 150PK

Zoro # G122858821
Mfr # X1E-FAS-NUT-LOC-2340x150
product price:  $277.99
/pk 150, $1.85/ea
Newport Fasteners Nylon Insert Lock Nut, #4-40, 316 Stainless Steel, Not Graded, 5000 PK 973290-BR-5000
Newport Fasteners

Nylon Insert Lock Nut, #4-40, 316 Stainless Steel, Not Graded, 5000 PK

Zoro # G006331587
Mfr # 973290-BR-5000
product price:  $784.99
/pk 5000, $0.16/ea
X1 Tools 1/2-13 Ultra Hi Performance Black-Oxide Steel Nylon-Insert Locknuts, 1000PK X1E-FAS-NUT-LOC-1226x1000
X1 Tools

1/2-13 Ultra Hi Performance Black-Oxide Steel Nylon-Insert Locknuts, 1000PK

Zoro # G222846834
Mfr # X1E-FAS-NUT-LOC-1226x1000
product price:  $2,197.99
/pk 1000, $2.20/ea
X1 Tools 1/2-20 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 15PK X1E-FAS-NUT-LOC-1028x15
X1 Tools

1/2-20 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 15PK

Zoro # G922844284
Mfr # X1E-FAS-NUT-LOC-1028x15
product price:  $28.59
/pk 15, $1.91/ea
X1 Tools 3/4-10 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 100PK X1E-FAS-NUT-LOC-3934x100
X1 Tools

3/4-10 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 100PK

Zoro # G422860555
Mfr # X1E-FAS-NUT-LOC-3934x100
product price:  $2,820.99
/pk 100, $28.21/ea
X1 Tools 10-32 Corrosion-Resistant 316 Stainless Steel Nylon-Insert Locknuts, 6PK X1E-FAS-NUT-LOC-2320x6
X1 Tools

10-32 Corrosion-Resistant 316 Stainless Steel Nylon-Insert Locknuts, 6PK

Zoro # G622858857
Mfr # X1E-FAS-NUT-LOC-2320x6
product price:  $2.49
/pk 6, $0.42/ea
X1 Tools 10-32 Black-Oxide C.R. 18-8 Stainless Steel Nylon-Insert Locknuts, 250PK X1E-FAS-NUT-LOC-2228x250
X1 Tools

10-32 Black-Oxide C.R. 18-8 Stainless Steel Nylon-Insert Locknuts, 250PK

Zoro # G522851767
Mfr # X1E-FAS-NUT-LOC-2228x250
product price:  $238.99
/pk 250, $0.96/ea
X1 Tools 7/16-20 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 12PK X1E-FAS-NUT-LOC-3024x12
X1 Tools

7/16-20 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 12PK

Zoro # G322857334
Mfr # X1E-FAS-NUT-LOC-3024x12
product price:  $16.75
/pk 12, $1.40/ea
X1 Tools 1/4-28 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 15PK X1E-FAS-NUT-LOC-3428x15
X1 Tools

1/4-28 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 15PK

Zoro # G722845160
Mfr # X1E-FAS-NUT-LOC-3428x15
product price:  $2.69
/pk 15, $0.18/ea
X1 Tools 6-32 Black-Oxide Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 8PK X1E-FAS-NUT-LOC-3812x8
X1 Tools

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

Zoro # G422857807
Mfr # X1E-FAS-NUT-LOC-3812x8
product price:  $4.65
/pk 8, $0.58/ea
X1 Tools 3/8-16 Black-Oxide C.R. 18-8 Stainless Steel Nylon-Insert Locknuts, 15PK X1E-FAS-NUT-LOC-2240x15
X1 Tools

3/8-16 Black-Oxide C.R. 18-8 Stainless Steel Nylon-Insert Locknuts, 15PK

Zoro # G122851594
Mfr # X1E-FAS-NUT-LOC-2240x15
product price:  $29.15
/pk 15, $1.94/ea
X1 Tools 7/16-20 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 150PK X1E-FAS-NUT-LOC-2132x150
X1 Tools

7/16-20 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 150PK

Zoro # G222846995
Mfr # X1E-FAS-NUT-LOC-2132x150
product price:  $151.99
/pk 150, $1.01/ea
Newport Fasteners Nylon Insert Lock Nut, #4-48, Steel, Grade A, Zinc Plated, 5000 PK 807962-BR-5000
Newport Fasteners

Nylon Insert Lock Nut, #4-48, Steel, Grade A, Zinc Plated, 5000 PK

Zoro # G406329757
Mfr # 807962-BR-5000
product price:  $501.99
/pk 5000, $0.10/ea
Newport Fasteners Nylon Insert Lock Nut, 3/8"-24, Steel, Grade A, Yellow Zinc, 2500 PK 352467-BR-2500
Newport Fasteners

Nylon Insert Lock Nut, 3/8"-24, Steel, Grade A, Yellow Zinc, 2500 PK

Zoro # G006327931
Mfr # 352467-BR-2500
product price:  $268.99
/pk 2500, $0.11/ea
X1 Tools M12 x 1.75 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 4PK X1E-FAS-NUT-LOC-1982x4
X1 Tools

M12 x 1.75 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 4PK

Zoro # G322844723
Mfr # X1E-FAS-NUT-LOC-1982x4
product price:  $3.89
/pk 4, $0.97/ea
X1 Tools 7/16-14 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 10PK X1E-FAS-NUT-LOC-3438x10
X1 Tools

7/16-14 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 10PK

Zoro # G022858938
Mfr # X1E-FAS-NUT-LOC-3438x10
product price:  $3.19
/pk 10, $0.32/ea
Lock Nuts (9,000+ items) - Page 149
  • First
  • Previous
  • 149
    of 261 pages
  • Next
  • Last

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
10-32 lock nuts10-24 nylon10-24 lock nut10-32 stainless nut10-32 nut
10-32 washer1 1 2 lock nut10-32 nylon nut10-32 lock nut10-24 washer

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