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
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 231

X1 Tools 3/8-24 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 2PK X1E-FAS-NUT-LOC-3020x2
X1 Tools

3/8-24 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 2PK

Zoro # G822857643
Mfr # X1E-FAS-NUT-LOC-3020x2
product price: 
$1.99
/pk of 2, $1.00/ea
Sold in mult. of 5 pks for $9.95
X1 Tools 1 1/4-12 Ultra Hi Performance Black-Oxide Steel Nylon-Insert Locknuts X1E-FAS-NUT-LOC-1256x1
X1 Tools

1 1/4-12 Ultra Hi Performance Black-Oxide Steel Nylon-Insert Locknuts

Zoro # G522846961
Mfr # X1E-FAS-NUT-LOC-1256x1
product price: 
$47.69
/ea
X1 Tools 1/2-13 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 10PK X1E-FAS-NUT-LOC-3930x10
X1 Tools

1/2-13 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 10PK

Zoro # G722859730
Mfr # X1E-FAS-NUT-LOC-3930x10
product price: 
$32.75
/pk of 10, $3.28/ea
X1 Tools 1/2-20 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 400PK X1E-FAS-NUT-LOC-3444x400
X1 Tools

1/2-20 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 400PK

Zoro # G622867736
Mfr # X1E-FAS-NUT-LOC-3444x400
product price: 
$143.99
/pk of 400, $0.36/ea
X1 Tools 7/16-14 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 6PK X1E-FAS-NUT-LOC-3732x6
X1 Tools

7/16-14 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 6PK

Zoro # G622850899
Mfr # X1E-FAS-NUT-LOC-3732x6
product price: 
$13.89
/pk of 6, $2.32/ea
X1 Tools M20 x 2.5 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 20PK X1E-FAS-NUT-LOC-1990x20
X1 Tools

M20 x 2.5 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 20PK

Zoro # G622847356
Mfr # X1E-FAS-NUT-LOC-1990x20
product price: 
$66.15
/pk of 20, $3.31/ea
X1 Tools 1/2-13 Corrosion-Resistant 316 Stainless Steel Nylon-Insert Locknuts, 12PK X1E-FAS-NUT-LOC-2340x12
X1 Tools

1/2-13 Corrosion-Resistant 316 Stainless Steel Nylon-Insert Locknuts, 12PK

Zoro # G722867001
Mfr # X1E-FAS-NUT-LOC-2340x12
product price: 
$29.25
/pk of 12, $2.44/ea
X1 Tools 5/16-24 Corrosion-Resistant 316 Stainless Steel Nylon-Insert Locknuts, 25PK X1E-FAS-NUT-LOC-2330x25
X1 Tools

5/16-24 Corrosion-Resistant 316 Stainless Steel Nylon-Insert Locknuts, 25PK

Zoro # G822851818
Mfr # X1E-FAS-NUT-LOC-2330x25
product price: 
$19.89
/pk of 25, $0.80/ea
X1 Tools 3/4-10 Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 12PK X1E-FAS-NUT-LOC-1624x12
X1 Tools

3/4-10 Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 12PK

Zoro # G222844717
Mfr # X1E-FAS-NUT-LOC-1624x12
product price: 
$26.89
/pk of 12, $2.24/ea
X1 Tools 3/4-10 Hi Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 4PK X1E-FAS-NUT-LOC-3314x4
X1 Tools

3/4-10 Hi Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 4PK

Zoro # G122848228
Mfr # X1E-FAS-NUT-LOC-3314x4
product price: 
$43.99
/pk of 4, $11.00/ea
X1 Tools 1-8 Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 15PK X1E-FAS-NUT-LOC-1628x15
X1 Tools

1-8 Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 15PK

Zoro # G122856681
Mfr # X1E-FAS-NUT-LOC-1628x15
product price: 
$90.65
/pk of 15, $6.04/ea
X1 Tools 1 1/4-12 Ultra Hi Performance Black-Oxide Steel Nylon-Insert Locknuts, 500PK X1E-FAS-NUT-LOC-1256x500
X1 Tools

1 1/4-12 Ultra Hi Performance Black-Oxide Steel Nylon-Insert Locknuts, 500PK

Zoro # G422847686
Mfr # X1E-FAS-NUT-LOC-1256x500
product price: 
$22,275.99
/pk of 500, $44.55/ea
Oxoxo M8-1.25 Metric Class 8 K Lock Nut Zinc, 1500PK 374400
Oxoxo

M8-1.25 Metric Class 8 K Lock Nut Zinc, 1500PK

Zoro # G222693360
Mfr # 374400
product price: 
$310.99
/pk of 1500, $0.21/ea
Oxoxo M3-0.5 Metric Class 8 K Lock Nut Black Oxide And Oil, 5000PK 636533
Oxoxo

M3-0.5 Metric Class 8 K Lock Nut Black Oxide And Oil, 5000PK

Zoro # G622684685
Mfr # 636533
product price: 
$242.99
/pk of 5000, $0.05/ea
X1 Tools 1 1/4-7 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 120PK X1E-FAS-NUT-LOC-1970x120
X1 Tools

1 1/4-7 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 120PK

Zoro # G722850065
Mfr # X1E-FAS-NUT-LOC-1970x120
product price: 
$2,697.99
/pk of 120, $22.48/ea
X1 Tools M16 x 2 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 400PK X1E-FAS-NUT-LOC-1986x400
X1 Tools

M16 x 2 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 400PK

Zoro # G722861436
Mfr # X1E-FAS-NUT-LOC-1986x400
product price: 
$813.99
/pk of 400, $2.03/ea
X1 Tools 10-24 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 200PK X1E-FAS-NUT-LOC-1922x200
X1 Tools

10-24 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 200PK

Zoro # G122864303
Mfr # X1E-FAS-NUT-LOC-1922x200
product price: 
$26.79
/pk of 200, $0.13/ea
X1 Tools 7/16-14 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 1000PK X1E-FAS-NUT-LOC-3732x1000
X1 Tools

7/16-14 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 1000PK

Zoro # G222864890
Mfr # X1E-FAS-NUT-LOC-3732x1000
product price: 
$1,505.99
/pk of 1000, $1.51/ea
Oxoxo M4-0.70 Din 985 Metric Class 8 Nylon Insert Hex Locknut Zinc, 2000PK 278232
Oxoxo

M4-0.70 Din 985 Metric Class 8 Nylon Insert Hex Locknut Zinc, 2000PK

Zoro # G322682417
Mfr # 278232
product price: 
$59.39
/pk of 2000, $0.03/ea
Heico-Lock 2-Piece Wedge Lock Nut, M20-2.5, Steel, Class 10, Zinc-Coated, 17 9/20 mm Ht, 2 PK HLMG-20/10-B
Heico-Lock

2-Piece Wedge Lock Nut, M20-2.5, Steel, Class 10, Zinc-Coated, 17 9/20 mm Ht, 2 PK

Zoro # G611471456
Mfr # HLMG-20/10-B
product price: 
$13.25
/pk of 2, $6.63/ea
X1 Tools 1/4-20 Black-Oxide Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 12PK X1E-FAS-NUT-LOC-3820x12
X1 Tools

1/4-20 Black-Oxide Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 12PK

Zoro # G422855384
Mfr # X1E-FAS-NUT-LOC-3820x12
product price: 
$14.99
/pk of 12, $1.25/ea
X1 Tools 1/4-20 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 8PK X1E-FAS-NUT-LOC-2018x8
X1 Tools

1/4-20 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 8PK

Zoro # G522847029
Mfr # X1E-FAS-NUT-LOC-2018x8
product price: 
$38.15
/pk of 8, $4.77/ea
X1 Tools 7/16-20 UHP Black-Oxide Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 500PK X1E-FAS-NUT-LOC-3222x500
X1 Tools

7/16-20 UHP Black-Oxide Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 500PK

Zoro # G822849426
Mfr # X1E-FAS-NUT-LOC-3222x500
product price: 
$1,066.99
/pk of 500, $2.13/ea
X1 Tools 3/4-10 Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 200PK X1E-FAS-NUT-LOC-1624x200
X1 Tools

3/4-10 Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 200PK

Zoro # G622845758
Mfr # X1E-FAS-NUT-LOC-1624x200
product price: 
$388.99
/pk of 200, $1.94/ea
X1 Tools 7/8-14 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 8PK X1E-FAS-NUT-LOC-1044x8
X1 Tools

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

Zoro # G822844254
Mfr # X1E-FAS-NUT-LOC-1044x8
product price: 
$44.55
/pk of 8, $5.57/ea
X1 Tools 10-32 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 20PK X1E-FAS-NUT-LOC-2016x20
X1 Tools

10-32 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 20PK

Zoro # G122851525
Mfr # X1E-FAS-NUT-LOC-2016x20
product price: 
$81.15
/pk of 20, $4.06/ea
X1 Tools 3/8-16 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 100PK X1E-FAS-NUT-LOC-3434x100
X1 Tools

3/8-16 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 100PK

Zoro # G822856011
Mfr # X1E-FAS-NUT-LOC-3434x100
product price: 
$24.19
/pk of 100, $0.24/ea
Titan Industrial Supply Lock Nut, Nylon, Grade 5 T3410NLNZ5
Titan Industrial Supply

Lock Nut, Nylon, Grade 5

Zoro # G709152663
Mfr # T3410NLNZ5
product price: 
$1.45
/ea
Sold in mult. of 6 for $8.70
X1 Tools 1/4-20 Ultra Hi Performance Black-Oxide Steel Nylon-Insert Locknuts, 20PK X1E-FAS-NUT-LOC-1210x20
X1 Tools

1/4-20 Ultra Hi Performance Black-Oxide Steel Nylon-Insert Locknuts, 20PK

Zoro # G622845017
Mfr # X1E-FAS-NUT-LOC-1210x20
product price: 
$14.69
/pk of 20, $0.73/ea
X1 Tools 5/8-11 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 250PK X1E-FAS-NUT-LOC-3450x250
X1 Tools

5/8-11 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 250PK

Zoro # G322848424
Mfr # X1E-FAS-NUT-LOC-3450x250
product price: 
$180.99
/pk of 250, $0.72/ea
X1 Tools 3/8-24 Black-Oxide C.R. 18-8 Stainless Steel Nylon-Insert Locknuts, 12PK X1E-FAS-NUT-LOC-2242x12
X1 Tools

3/8-24 Black-Oxide C.R. 18-8 Stainless Steel Nylon-Insert Locknuts, 12PK

Zoro # G122856179
Mfr # X1E-FAS-NUT-LOC-2242x12
product price: 
$40.55
/pk of 12, $3.38/ea
X1 Tools M12 x 1.75 mm Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 150PK X1E-FAS-NUT-LOC-3488x150
X1 Tools

M12 x 1.75 mm Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 150PK

Zoro # G622864377
Mfr # X1E-FAS-NUT-LOC-3488x150
product price: 
$397.99
/pk of 150, $2.65/ea
X1 Tools 7/16-20 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 50PK X1E-FAS-NUT-LOC-2132x50
X1 Tools

7/16-20 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 50PK

Zoro # G822857995
Mfr # X1E-FAS-NUT-LOC-2132x50
product price: 
$56.25
/pk of 50, $1.13/ea
X1 Tools 6-32 Performance Black-Corrosion-Resistant-Coated Steel Thin-Profile Nylon-Insert Locknuts, 120PK X1E-FAS-NUT-LOC-3610x120
X1 Tools

6-32 Performance Black-Corrosion-Resistant-Coated Steel Thin-Profile Nylon-Insert Locknuts, 120PK

Zoro # G822853300
Mfr # X1E-FAS-NUT-LOC-3610x120
product price: 
$410.99
/pk of 120, $3.42/ea
X1 Tools 5/8-18 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 1000PK X1E-FAS-NUT-LOC-3452x1000
X1 Tools

5/8-18 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 1000PK

Zoro # G422851782
Mfr # X1E-FAS-NUT-LOC-3452x1000
product price: 
$774.99
/pk of 1000, $0.77/ea
Oxoxo M12-1.75 Din 985 Metric Class 8 Nylon Insert Hex Locknut Zinc, 300PK 278155
Oxoxo

M12-1.75 Din 985 Metric Class 8 Nylon Insert Hex Locknut Zinc, 300PK

Zoro # G722663115
Mfr # 278155
product price: 
$99.15
/pk of 300, $0.33/ea
Lock Nuts (10,000+ items) - Page 231
  • First
  • Previous
  • 231
    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 NutsCoupling NutsFlange NutsWing NutsGeneral Washers
Hex Head Cap ScrewsMachine ScrewsSocket Head Cap 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