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 239

X1 Tools 7/16-20 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 25PK X1E-FAS-NUT-LOC-3024x25
X1 Tools

7/16-20 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 25PK

Zoro # G422863754
Mfr # X1E-FAS-NUT-LOC-3024x25
product price: 
$28.19
/pk 25, $1.13/ea
X1 Tools 5/16-18 Corrosion-Resistant 316 Stainless Steel Nylon-Insert Locknuts, 100PK X1E-FAS-NUT-LOC-2328x100
X1 Tools

5/16-18 Corrosion-Resistant 316 Stainless Steel Nylon-Insert Locknuts, 100PK

Zoro # G622855726
Mfr # X1E-FAS-NUT-LOC-2328x100
product price: 
$53.55
/pk 100, $0.54/ea
X1 Tools 7/8-14 Hi Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 15PK X1E-FAS-NUT-LOC-3318x15
X1 Tools

7/8-14 Hi Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 15PK

Zoro # G422845620
Mfr # X1E-FAS-NUT-LOC-3318x15
product price: 
$200.99
/pk 15, $13.40/ea
X1 Tools 5/16-18 Ultra Hi Performance Black-Oxide Steel Nylon-Insert Locknuts, 50PK X1E-FAS-NUT-LOC-1214x50
X1 Tools

5/16-18 Ultra Hi Performance Black-Oxide Steel Nylon-Insert Locknuts, 50PK

Zoro # G922844604
Mfr # X1E-FAS-NUT-LOC-1214x50
product price: 
$36.99
/pk 50, $0.74/ea
X1 Tools 7/16-20 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts X1E-FAS-NUT-LOC-3024x1
X1 Tools

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

Zoro # G322852650
Mfr # X1E-FAS-NUT-LOC-3024x1
product price: 
$1.59
/ea
Sold in mult. of 6 for $9.54
X1 Tools 10-32 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 75PK X1E-FAS-NUT-LOC-2016x75
X1 Tools

10-32 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 75PK

Zoro # G722866295
Mfr # X1E-FAS-NUT-LOC-2016x75
product price: 
$282.99
/pk 75, $3.77/ea
X1 Tools 5-40 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 75PK X1E-FAS-NUT-LOC-1916x75
X1 Tools

5-40 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 75PK

Zoro # G222846810
Mfr # X1E-FAS-NUT-LOC-1916x75
product price: 
$12.95
/pk 75, $0.17/ea
Sold in mult. of 2 for $25.90
X1 Tools 10-24 Performance Black-Corrosion-Resistant-Coated Steel Thin-Profile Nylon-Insert Locknuts, 500PK X1E-FAS-NUT-LOC-3614x500
X1 Tools

10-24 Performance Black-Corrosion-Resistant-Coated Steel Thin-Profile Nylon-Insert Locknuts, 500PK

Zoro # G122856452
Mfr # X1E-FAS-NUT-LOC-3614x500
product price: 
$1,701.99
/pk 500, $3.40/ea
X1 Tools 1/4-20 Black-Oxide Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknut, 200PK X1E-FAS-NUT-LOC-3820x200
X1 Tools

1/4-20 Black-Oxide Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknut, 200PK

Zoro # G622850356
Mfr # X1E-FAS-NUT-LOC-3820x200
product price: 
$155.99
/pk 200, $0.78/ea
X1 Tools 3/8-16 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 2PK X1E-FAS-NUT-LOC-3018x2
X1 Tools

3/8-16 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 2PK

Zoro # G822861176
Mfr # X1E-FAS-NUT-LOC-3018x2
product price: 
$1.49
/pk 2, $0.75/ea
Sold in mult. of 7 for $10.43
X1 Tools 5/16-18 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 4PK X1E-FAS-NUT-LOC-3724x4
X1 Tools

5/16-18 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 4PK

Zoro # G822862340
Mfr # X1E-FAS-NUT-LOC-3724x4
product price: 
$2.49
/pk 4, $0.62/ea
Sold in mult. of 4 for $9.96
X1 Tools 7/8-14 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 25PK X1E-FAS-NUT-LOC-3460x25
X1 Tools

7/8-14 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 25PK

Zoro # G922859899
Mfr # X1E-FAS-NUT-LOC-3460x25
product price: 
$101.99
/pk 25, $4.08/ea
X1 Tools M20 x 2.5 mm Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 1000PK X1E-FAS-NUT-LOC-3496x1000
X1 Tools

M20 x 2.5 mm Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 1000PK

Zoro # G422853762
Mfr # X1E-FAS-NUT-LOC-3496x1000
product price: 
$14,975.99
/pk 1000, $14.98/ea
X1 Tools 5/8-18 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 20PK X1E-FAS-NUT-LOC-2138x20
X1 Tools

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

Zoro # G322854647
Mfr # X1E-FAS-NUT-LOC-2138x20
product price: 
$72.85
/pk 20, $3.64/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: 
$37.19
/pk 25, $1.49/ea
X1 Tools 10-24 Black-Oxide C.R. 18-8 Stainless Steel Nylon-Insert Locknuts, 4PK X1E-FAS-NUT-LOC-2226x4
X1 Tools

10-24 Black-Oxide C.R. 18-8 Stainless Steel Nylon-Insert Locknuts, 4PK

Zoro # G822847651
Mfr # X1E-FAS-NUT-LOC-2226x4
product price: 
$2.15
/pk 4, $0.54/ea
Sold in mult. of 5 for $10.75
X1 Tools 10-24 Corrosion-Resistant 316 Stainless Steel Nylon-Insert Locknuts, 150PK X1E-FAS-NUT-LOC-2318x150
X1 Tools

10-24 Corrosion-Resistant 316 Stainless Steel Nylon-Insert Locknuts, 150PK

Zoro # G322849506
Mfr # X1E-FAS-NUT-LOC-2318x150
product price: 
$44.65
/pk 150, $0.30/ea
Newport Fasteners Nylon Insert Lock Nut, 1-1/2"-6, Steel, Grade A, Zinc Plated, 30 PK 427913-BR-30
Newport Fasteners

Nylon Insert Lock Nut, 1-1/2"-6, Steel, Grade A, Zinc Plated, 30 PK

Zoro # G606327539
Mfr # 427913-BR-30
product price: 
$525.99
/pk 30, $17.53/ea
Newport Fasteners Nylon Insert Lock Nut, 1/4"-20, 18-8 Stainless Steel, Not Graded, 7000 PK 621904-BR-7000
Newport Fasteners

Nylon Insert Lock Nut, 1/4"-20, 18-8 Stainless Steel, Not Graded, 7000 PK

Zoro # G906329745
Mfr # 621904-BR-7000
product price: 
$896.99
/pk 7000, $0.13/ea
X1 Tools 5/16-24 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 8PK X1E-FAS-NUT-LOC-1934x8
X1 Tools

5/16-24 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 8PK

Zoro # G322861270
Mfr # X1E-FAS-NUT-LOC-1934x8
product price: 
$1.99
/pk 8, $0.25/ea
Sold in mult. of 5 for $9.95
X1 Tools 5/16-24 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 20PK X1E-FAS-NUT-LOC-3726x20
X1 Tools

5/16-24 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 20PK

Zoro # G022863208
Mfr # X1E-FAS-NUT-LOC-3726x20
product price: 
$13.59
/pk 20, $0.68/ea
X1 Tools 6-32 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 75PK X1E-FAS-NUT-LOC-2010x75
X1 Tools

6-32 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 75PK

Zoro # G422867110
Mfr # X1E-FAS-NUT-LOC-2010x75
product price: 
$266.99
/pk 75, $3.56/ea
X1 Tools 3/4-16 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 100PK X1E-FAS-NUT-LOC-3034x100
X1 Tools

3/4-16 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 100PK

Zoro # G222862001
Mfr # X1E-FAS-NUT-LOC-3034x100
product price: 
$675.99
/pk 100, $6.76/ea
X1 Tools 1 1/2-12 Ultra Hi Performance Black-Oxide Steel Nylon-Insert Locknuts X1E-FAS-NUT-LOC-1262x1
X1 Tools

1 1/2-12 Ultra Hi Performance Black-Oxide Steel Nylon-Insert Locknuts

Zoro # G422846047
Mfr # X1E-FAS-NUT-LOC-1262x1
product price: 
$62.79
/ea
X1 Tools 5/8-18 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 150PK X1E-FAS-NUT-LOC-3452x150
X1 Tools

5/8-18 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 150PK

Zoro # G322849179
Mfr # X1E-FAS-NUT-LOC-3452x150
product price: 
$116.99
/pk 150, $0.78/ea
X1 Tools 7/8-14 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 500PK X1E-FAS-NUT-LOC-1962x500
X1 Tools

7/8-14 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 500PK

Zoro # G822852969
Mfr # X1E-FAS-NUT-LOC-1962x500
product price: 
$2,414.99
/pk 500, $4.83/ea
Oxoxo 10-32 Serrated Flange Hex Lock Nuts Case Hardened HR15N 78/90 Black Oxide, 4000PK 358037
Oxoxo

10-32 Serrated Flange Hex Lock Nuts Case Hardened HR15N 78/90 Black Oxide, 4000PK

Zoro # G622673900
Mfr # 358037
product price: 
$331.99
/pk 4000, $0.08/ea
Oxoxo 7/16-14 N1610 Nylon Insert Hex Locknut NE Hex Standard Height Grade 8 Zinc Yellow, 500PK 277925
Oxoxo

7/16-14 N1610 Nylon Insert Hex Locknut NE Hex Standard Height Grade 8 Zinc Yellow, 500PK

Zoro # G522661267
Mfr # 277925
product price: 
$147.99
/pk 500, $0.30/ea
X1 Tools 3/4-16 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 1000PK X1E-FAS-NUT-LOC-3456x1000
X1 Tools

3/4-16 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 1000PK

Zoro # G922845656
Mfr # X1E-FAS-NUT-LOC-3456x1000
product price: 
$2,613.99
/pk 1000, $2.61/ea
X1 Tools 1/2-13 Black-Oxide C.R. 18-8 Stainless Steel Nylon-Insert Locknuts, 200PK X1E-FAS-NUT-LOC-2248x200
X1 Tools

1/2-13 Black-Oxide C.R. 18-8 Stainless Steel Nylon-Insert Locknuts, 200PK

Zoro # G922851961
Mfr # X1E-FAS-NUT-LOC-2248x200
product price: 
$568.99
/pk 200, $2.84/ea
X1 Tools 7/8-14 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 10PK X1E-FAS-NUT-LOC-3752x10
X1 Tools

7/8-14 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 10PK

Zoro # G122852799
Mfr # X1E-FAS-NUT-LOC-3752x10
product price: 
$364.99
/pk 10, $36.50/ea
X1 Tools 1/2-20 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 100PK X1E-FAS-NUT-LOC-3932x100
X1 Tools

1/2-20 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 100PK

Zoro # G122854335
Mfr # X1E-FAS-NUT-LOC-3932x100
product price: 
$271.99
/pk 100, $2.72/ea
X1 Tools 6-32 Black-Oxide C.R. 18-8 Stainless Steel Nylon-Insert Locknuts, 250PK X1E-FAS-NUT-LOC-2218x250
X1 Tools

6-32 Black-Oxide C.R. 18-8 Stainless Steel Nylon-Insert Locknuts, 250PK

Zoro # G122848488
Mfr # X1E-FAS-NUT-LOC-2218x250
product price: 
$64.95
/pk 250, $0.26/ea
X1 Tools 1 1/4-7 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 120PK X1E-FAS-NUT-LOC-3468x120
X1 Tools

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

Zoro # G822848429
Mfr # X1E-FAS-NUT-LOC-3468x120
product price: 
$2,147.99
/pk 120, $17.90/ea
Newport Fasteners Nylon Insert Lock Nut, 1"-14, 316 Stainless Steel, Not Graded, 25 PK 405285-PR-25
Newport Fasteners

Nylon Insert Lock Nut, 1"-14, 316 Stainless Steel, Not Graded, 25 PK

Zoro # G006328006
Mfr # 405285-PR-25
product price: 
$599.99
/pk 25, $24.00/ea
X1 Tools 5/16-18 Black-Oxide Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 6PK X1E-FAS-NUT-LOC-3822x6
X1 Tools

5/16-18 Black-Oxide Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 6PK

Zoro # G922858274
Mfr # X1E-FAS-NUT-LOC-3822x6
product price: 
$10.65
/pk 6, $1.78/ea
Sold in mult. of 2 for $21.30
Lock Nuts (10,000+ items) - Page 239
  • First
  • Previous
  • 239
    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