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 Customer Service
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

Lock Nuts (10,000+ items) - Page 177

X1 Tools 1/2-13 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 200PK X1E-FAS-NUT-LOC-1944x200
X1 Tools

1/2-13 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 200PK

Zoro # G022861662
Mfr # X1E-FAS-NUT-LOC-1944x200
product price:  $123.99
/pk 200, $0.62/ea
X1 Tools 7/8-14 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 10PK X1E-FAS-NUT-LOC-1962x10
X1 Tools

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

Zoro # G322853107
Mfr # X1E-FAS-NUT-LOC-1962x10
product price:  $42.15
/pk 10, $4.22/ea
X1 Tools 1-8 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 75PK X1E-FAS-NUT-LOC-2143x75
X1 Tools

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

Zoro # G422860234
Mfr # X1E-FAS-NUT-LOC-2143x75
product price:  $1,000.99
/pk 75, $13.35/ea
Oxoxo 1/4-20 Serrated Flange Hex Lock Nuts Case Hardened HR15N 78/90 Zinc Yellow and Bake, 2000PK 414319
Oxoxo

1/4-20 Serrated Flange Hex Lock Nuts Case Hardened HR15N 78/90 Zinc Yellow and Bake, 2000PK

Zoro # G322680338
Mfr # 414319
product price:  $200.99
/pk 2000, $0.10/ea
X1 Tools 5/16-24 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 20PK X1E-FAS-NUT-LOC-3920x20
X1 Tools

5/16-24 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 20PK

Zoro # G922865890
Mfr # X1E-FAS-NUT-LOC-3920x20
product price:  $24.49
/pk 20, $1.22/ea
Oxoxo 7/16-20 Serrated Flange Hex Lock Nuts Case Hardened HR15N 78/90 Zinc And Bake, 500PK 195913
Oxoxo

7/16-20 Serrated Flange Hex Lock Nuts Case Hardened HR15N 78/90 Zinc And Bake, 500PK

Zoro # G522689124
Mfr # 195913
product price:  $138.99
/pk 500, $0.28/ea
X1 Tools 1/4-28 UHP Black-Oxide Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 250PK X1E-FAS-NUT-LOC-3212x250
X1 Tools

1/4-28 UHP Black-Oxide Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 250PK

Zoro # G322864400
Mfr # X1E-FAS-NUT-LOC-3212x250
product price:  $541.99
/pk 250, $2.17/ea
X1 Tools 1-14 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 50PK X1E-FAS-NUT-LOC-2145x50
X1 Tools

1-14 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 50PK

Zoro # G822852020
Mfr # X1E-FAS-NUT-LOC-2145x50
product price:  $799.99
/pk 50, $16.00/ea
X1 Tools 5/16-18 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 75PK X1E-FAS-NUT-LOC-1932x75
X1 Tools

5/16-18 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 75PK

Zoro # G922866217
Mfr # X1E-FAS-NUT-LOC-1932x75
product price:  $18.15
/pk 75, $0.24/ea
X1 Tools 1/4-28 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 10PK X1E-FAS-NUT-LOC-3722x10
X1 Tools

1/4-28 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 10PK

Zoro # G022846348
Mfr # X1E-FAS-NUT-LOC-3722x10
product price:  $4.19
/pk 10, $0.42/ea
First Fitting & Fastener 1/2 BRASS LOCKNUT PIPE FITTING 28127MID
First Fitting & Fastener

1/2 BRASS LOCKNUT PIPE FITTING

Zoro # G016551531
Mfr # 28127MID
product price:  $21.15
/ea
X1 Tools 5/8-18 UHP Black-Oxide Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 20PK X1E-FAS-NUT-LOC-3230x20
X1 Tools

5/8-18 UHP Black-Oxide Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 20PK

Zoro # G722847980
Mfr # X1E-FAS-NUT-LOC-3230x20
product price:  $94.55
/pk 20, $4.73/ea
X1 Tools 10-24 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 6PK X1E-FAS-NUT-LOC-1922x6
X1 Tools

10-24 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 6PK

Zoro # G722845108
Mfr # X1E-FAS-NUT-LOC-1922x6
product price:  $1.25
/pk 6, $0.21/ea
Oxoxo 1/4-20X7/16X3/ Double Serrated Hex Lock Nuts Case Hardened Zinc And Bake, 5000PK 635916
Oxoxo

1/4-20X7/16X3/ Double Serrated Hex Lock Nuts Case Hardened Zinc And Bake, 5000PK

Zoro # G522685683
Mfr # 635916
product price:  $271.99
/pk 5000, $0.05/ea
X1 Tools 1/4-28 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 100PK X1E-FAS-NUT-LOC-2126x100
X1 Tools

1/4-28 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 100PK

Zoro # G622864872
Mfr # X1E-FAS-NUT-LOC-2126x100
product price:  $33.89
/pk 100, $0.34/ea
X1 Tools 5/16-24 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 400PK X1E-FAS-NUT-LOC-3920x400
X1 Tools

5/16-24 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 400PK

Zoro # G922856744
Mfr # X1E-FAS-NUT-LOC-3920x400
product price:  $350.99
/pk 400, $0.88/ea
X1 Tools 7/16-14 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 10PK X1E-FAS-NUT-LOC-1022x10
X1 Tools

7/16-14 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 10PK

Zoro # G222844229
Mfr # X1E-FAS-NUT-LOC-1022x10
product price:  $17.39
/pk 10, $1.74/ea
X1 Tools 5/8-18 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 4PK X1E-FAS-NUT-LOC-3744x4
X1 Tools

5/8-18 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 4PK

Zoro # G622850844
Mfr # X1E-FAS-NUT-LOC-3744x4
product price:  $34.89
/pk 4, $8.72/ea
Oxoxo M8-1.25 Din 985 Metric Class 10 Nylon Insert Hex Locknut Zinc, 1000PK 627693
Oxoxo

M8-1.25 Din 985 Metric Class 10 Nylon Insert Hex Locknut Zinc, 1000PK

Zoro # G322699033
Mfr # 627693
product price:  $173.99
/pk 1000, $0.17/ea
X1 Tools 10-24 Black-Oxide Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 120PK X1E-FAS-NUT-LOC-3816x120
X1 Tools

10-24 Black-Oxide Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 120PK

Zoro # G422865611
Mfr # X1E-FAS-NUT-LOC-3816x120
product price:  $69.25
/pk 120, $0.58/ea
X1 Tools 7/8-14 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 120PK X1E-FAS-NUT-LOC-3460x120
X1 Tools

7/8-14 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 120PK

Zoro # G722867315
Mfr # X1E-FAS-NUT-LOC-3460x120
product price:  $438.99
/pk 120, $3.66/ea
X1 Tools 1/4-20 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 25PK X1E-FAS-NUT-LOC-3010x25
X1 Tools

1/4-20 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 25PK

Zoro # G522855901
Mfr # X1E-FAS-NUT-LOC-3010x25
product price:  $10.79
/pk 25, $0.43/ea
X1 Tools M20 x 2.5 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 8PK X1E-FAS-NUT-LOC-1990x8
X1 Tools

M20 x 2.5 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 8PK

Zoro # G722864864
Mfr # X1E-FAS-NUT-LOC-1990x8
product price:  $30.49
/pk 8, $3.81/ea
X1 Tools 5/16-24 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 250PK X1E-FAS-NUT-LOC-3432x250
X1 Tools

5/16-24 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 250PK

Zoro # G522848941
Mfr # X1E-FAS-NUT-LOC-3432x250
product price:  $46.29
/pk 250, $0.19/ea
X1 Tools 1 1/2-12 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 75PK X1E-FAS-NUT-LOC-1066x75
X1 Tools

1 1/2-12 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 75PK

Zoro # G322848257
Mfr # X1E-FAS-NUT-LOC-1066x75
product price:  $5,040.99
/pk 75, $67.21/ea
X1 Tools 3/8-16 Corrosion-Resistant 316 Stainless Steel Nylon-Insert Locknuts, 15PK X1E-FAS-NUT-LOC-2332x15
X1 Tools

3/8-16 Corrosion-Resistant 316 Stainless Steel Nylon-Insert Locknuts, 15PK

Zoro # G222853634
Mfr # X1E-FAS-NUT-LOC-2332x15
product price:  $16.99
/pk 15, $1.13/ea
Newport Fasteners Nylon Insert Lock Nut, 5/8"-11, 18-8 Stainless Steel, Not Graded, 100 PK 522888
Newport Fasteners

Nylon Insert Lock Nut, 5/8"-11, 18-8 Stainless Steel, Not Graded, 100 PK

Zoro # G806329937
Mfr # 522888
product price:  $309.99
/pk 100, $3.10/ea
X1 Tools 5/16-18 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Ins. Locknuts, 400PK X1E-FAS-NUT-LOC-2020x400
X1 Tools

5/16-18 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Ins. Locknuts, 400PK

Zoro # G422863679
Mfr # X1E-FAS-NUT-LOC-2020x400
product price:  $1,557.99
/pk 400, $3.89/ea
X1 Tools 9/16-18 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 20PK X1E-FAS-NUT-LOC-3740x20
X1 Tools

9/16-18 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 20PK

Zoro # G822845664
Mfr # X1E-FAS-NUT-LOC-3740x20
product price:  $1,026.99
/pk 20, $51.35/ea
X1 Tools 7/16-14 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 10PK X1E-FAS-NUT-LOC-1940x10
X1 Tools

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

Zoro # G322845058
Mfr # X1E-FAS-NUT-LOC-1940x10
product price:  $4.15
/pk 10, $0.42/ea
X1 Tools 1 1/4-12 UHP Black-Oxide Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 4PK X1E-FAS-NUT-LOC-3238x4
X1 Tools

1 1/4-12 UHP Black-Oxide Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 4PK

Zoro # G322862093
Mfr # X1E-FAS-NUT-LOC-3238x4
product price:  $123.99
/pk 4, $31.00/ea
X1 Tools 1/4-20 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 15PK X1E-FAS-NUT-LOC-1928x15
X1 Tools

1/4-20 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 15PK

Zoro # G122847252
Mfr # X1E-FAS-NUT-LOC-1928x15
product price:  $2.69
/pk 15, $0.18/ea
X1 Tools 1/2-20 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 25PK X1E-FAS-NUT-LOC-3028x25
X1 Tools

1/2-20 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 25PK

Zoro # G522849696
Mfr # X1E-FAS-NUT-LOC-3028x25
product price:  $73.59
/pk 25, $2.94/ea
X1 Tools 7/8-9 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 200PK X1E-FAS-NUT-LOC-1960x200
X1 Tools

7/8-9 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 200PK

Zoro # G622844850
Mfr # X1E-FAS-NUT-LOC-1960x200
product price:  $1,022.99
/pk 200, $5.11/ea
X1 Tools 5/16-18 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 20PK X1E-FAS-NUT-LOC-2127x20
X1 Tools

5/16-18 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 20PK

Zoro # G222847657
Mfr # X1E-FAS-NUT-LOC-2127x20
product price:  $15.45
/pk 20, $0.77/ea
X1 Tools 1/4-20 Performance Black-Corrosion-Resistant-Coated Steel Thin-Profile Nylon-Insert Locknuts, 6PK X1E-FAS-NUT-LOC-3618x6
X1 Tools

1/4-20 Performance Black-Corrosion-Resistant-Coated Steel Thin-Profile Nylon-Insert Locknuts, 6PK

Zoro # G622845277
Mfr # X1E-FAS-NUT-LOC-3618x6
product price:  $30.35
/pk 6, $5.06/ea
Lock Nuts (10,000+ items) - Page 177
  • First
  • Previous
  • 177
    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 NutsCap Nuts & Acorn NutsGeneral Washers
Hex Head Cap ScrewsSocket Head Cap ScrewsMachine ScrewsLock WashersSelf-Tapping Screws
3/8-16 nuts stainless steelflanged locknutnylon-insert locknuts3/8" flange nutslock nut nylon insert
serrated flange lock nutn-10 lock nut5/16-18 stainless steel bolt2 inch locknut1/4-20 stainless steel nut

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