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 179

X1 Tools 6-32 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 200PK X1E-FAS-NUT-LOC-2117x200
X1 Tools

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

Zoro # G422859443
Mfr # X1E-FAS-NUT-LOC-2117x200
product price: 
$31.89
/pk 200, $0.16/ea
X1 Tools 5/16-18 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 25PK X1E-FAS-NUT-LOC-1014x25
X1 Tools

5/16-18 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 25PK

Zoro # G122844183
Mfr # X1E-FAS-NUT-LOC-1014x25
product price: 
$20.69
/pk 25, $0.83/ea
X1 Tools 1/2-13 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 20PK X1E-FAS-NUT-LOC-3930x20
X1 Tools

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

Zoro # G722854346
Mfr # X1E-FAS-NUT-LOC-3930x20
product price: 
$58.69
/pk 20, $2.93/ea
X1 Tools 5/8-18 Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 1000PK X1E-FAS-NUT-LOC-1623x1000
X1 Tools

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

Zoro # G522845087
Mfr # X1E-FAS-NUT-LOC-1623x1000
product price: 
$2,095.99
/pk 1000, $2.10/ea
X1 Tools 3/8-16 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 1000PK X1E-FAS-NUT-LOC-2022x1000
X1 Tools

3/8-16 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 1000PK

Zoro # G222847213
Mfr # X1E-FAS-NUT-LOC-2022x1000
product price: 
$3,990.99
/pk 1000, $3.99/ea
X1 Tools 10-32 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 15PK X1E-FAS-NUT-LOC-3912x15
X1 Tools

10-32 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 15PK

Zoro # G022854657
Mfr # X1E-FAS-NUT-LOC-3912x15
product price: 
$16.89
/pk 15, $1.13/ea
X1 Tools 3/8-24 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 20PK X1E-FAS-NUT-LOC-1020x20
X1 Tools

3/8-24 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 20PK

Zoro # G722844606
Mfr # X1E-FAS-NUT-LOC-1020x20
product price: 
$18.39
/pk 20, $0.92/ea
X1 Tools 1 1/2-6 Hi Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 6PK X1E-FAS-NUT-LOC-3330x6
X1 Tools

1 1/2-6 Hi Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 6PK

Zoro # G122847047
Mfr # X1E-FAS-NUT-LOC-3330x6
product price: 
$292.99
/pk 6, $48.83/ea
X1 Tools 9/16-18 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 500PK X1E-FAS-NUT-LOC-3448x500
X1 Tools

9/16-18 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 500PK

Zoro # G222845714
Mfr # X1E-FAS-NUT-LOC-3448x500
product price: 
$272.99
/pk 500, $0.55/ea
X1 Tools 1 1/2-6 Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 25PK X1E-FAS-NUT-LOC-1632x25
X1 Tools

1 1/2-6 Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 25PK

Zoro # G622855313
Mfr # X1E-FAS-NUT-LOC-1632x25
product price: 
$1,099.99
/pk 25, $44.00/ea
Zoro Select Lock Nut, Stainless Steel, 9/32", PK2 FLNIX050-002P
Zoro Select

Lock Nut, Stainless Steel, 9/32", PK2

Zoro # G422963287
Mfr # FLNIX050-002P
product price: 
$17.19
/pk 2, $8.60/ea
Oxoxo M10-1.5 Din 985 Metric Class 10 Nylon Insert Hex Locknut Zinc, 500PK 627704
Oxoxo

M10-1.5 Din 985 Metric Class 10 Nylon Insert Hex Locknut Zinc, 500PK

Zoro # G922687058
Mfr # 627704
product price: 
$189.99
/pk 500, $0.38/ea
X1 Tools 1/2-13 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 6PK X1E-FAS-NUT-LOC-1026x6
X1 Tools

1/2-13 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 6PK

Zoro # G922844475
Mfr # X1E-FAS-NUT-LOC-1026x6
product price: 
$14.29
/pk 6, $2.38/ea
X1 Tools 10-32 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 6PK X1E-FAS-NUT-LOC-2122x6
X1 Tools

10-32 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 6PK

Zoro # G422866809
Mfr # X1E-FAS-NUT-LOC-2122x6
product price: 
$1.89
/pk 6, $0.32/ea
Sold in mult. of 5 for $9.45
X1 Tools 12-24 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 75PK X1E-FAS-NUT-LOC-1926x75
X1 Tools

12-24 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 75PK

Zoro # G122855783
Mfr # X1E-FAS-NUT-LOC-1926x75
product price: 
$15.79
/pk 75, $0.21/ea
X1 Tools M6 x 1 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 15PK X1E-FAS-NUT-LOC-1976x15
X1 Tools

M6 x 1 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 15PK

Zoro # G222855089
Mfr # X1E-FAS-NUT-LOC-1976x15
product price: 
$3.59
/pk 15, $0.24/ea
Sold in mult. of 3 for $10.77
X1 Tools M8 x 1.25 mm Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 1000PK X1E-FAS-NUT-LOC-3484x1000
X1 Tools

M8 x 1.25 mm Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 1000PK

Zoro # G922845724
Mfr # X1E-FAS-NUT-LOC-3484x1000
product price: 
$2,259.99
/pk 1000, $2.26/ea
X1 Tools 3/8-16 Black-Oxide C.R. 18-8 Stainless Steel Nylon-Insert Locknuts, 4PK X1E-FAS-NUT-LOC-2240x4
X1 Tools

3/8-16 Black-Oxide C.R. 18-8 Stainless Steel Nylon-Insert Locknuts, 4PK

Zoro # G522844851
Mfr # X1E-FAS-NUT-LOC-2240x4
product price: 
$12.69
/pk 4, $3.17/ea
Sold in mult. of 2 for $25.38
X1 Tools 3/4-16 Hi Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 400PK X1E-FAS-NUT-LOC-3316x400
X1 Tools

3/4-16 Hi Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 400PK

Zoro # G022850987
Mfr # X1E-FAS-NUT-LOC-3316x400
product price: 
$1,193.99
/pk 400, $2.98/ea
X1 Tools 3/4-16 Hi Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 200PK X1E-FAS-NUT-LOC-3316x200
X1 Tools

3/4-16 Hi Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 200PK

Zoro # G922844895
Mfr # X1E-FAS-NUT-LOC-3316x200
product price: 
$439.99
/pk 200, $2.20/ea
X1 Tools 7/16-20 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 25PK X1E-FAS-NUT-LOC-2132x25
X1 Tools

7/16-20 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 25PK

Zoro # G222846339
Mfr # X1E-FAS-NUT-LOC-2132x25
product price: 
$31.15
/pk 25, $1.25/ea
X1 Tools 1 1/2-6 Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 400PK X1E-FAS-NUT-LOC-1632x400
X1 Tools

1 1/2-6 Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 400PK

Zoro # G322848202
Mfr # X1E-FAS-NUT-LOC-1632x400
product price: 
$17,438.99
/pk 400, $43.60/ea
X1 Tools 7/8-14 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 4PK X1E-FAS-NUT-LOC-3752x4
X1 Tools

7/8-14 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 4PK

Zoro # G222865415
Mfr # X1E-FAS-NUT-LOC-3752x4
product price: 
$151.99
/pk 4, $38.00/ea
X1 Tools 7/8-14 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 2PK X1E-FAS-NUT-LOC-1962x2
X1 Tools

7/8-14 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 2PK

Zoro # G822863293
Mfr # X1E-FAS-NUT-LOC-1962x2
product price: 
$11.89
/pk 2, $5.95/ea
X1 Tools 1/2-13 UHP Black-Oxide Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 50PK X1E-FAS-NUT-LOC-3224x50
X1 Tools

1/2-13 UHP Black-Oxide Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 50PK

Zoro # G122859477
Mfr # X1E-FAS-NUT-LOC-3224x50
product price: 
$170.99
/pk 50, $3.42/ea
X1 Tools 7/8-9 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 4PK X1E-FAS-NUT-LOC-2141x4
X1 Tools

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

Zoro # G722863386
Mfr # X1E-FAS-NUT-LOC-2141x4
product price: 
$42.89
/pk 4, $10.72/ea
X1 Tools 8-32 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 400PK X1E-FAS-NUT-LOC-2012x400
X1 Tools

8-32 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 400PK

Zoro # G822860322
Mfr # X1E-FAS-NUT-LOC-2012x400
product price: 
$1,361.99
/pk 400, $3.40/ea
X1 Tools 1/2-20 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 4PK X1E-FAS-NUT-LOC-2134x4
X1 Tools

1/2-20 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 4PK

Zoro # G122854953
Mfr # X1E-FAS-NUT-LOC-2134x4
product price: 
$12.49
/pk 4, $3.12/ea
X1 Tools 5/16-18 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 250PK X1E-FAS-NUT-LOC-3724x250
X1 Tools

5/16-18 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 250PK

Zoro # G722858016
Mfr # X1E-FAS-NUT-LOC-3724x250
product price: 
$104.99
/pk 250, $0.42/ea
X1 Tools 1/2-13 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 12PK X1E-FAS-NUT-LOC-1026x12
X1 Tools

1/2-13 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 12PK

Zoro # G522844554
Mfr # X1E-FAS-NUT-LOC-1026x12
product price: 
$22.89
/pk 12, $1.91/ea
X1 Tools 1 1/4-7 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 2PK X1E-FAS-NUT-LOC-3468x2
X1 Tools

1 1/4-7 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 2PK

Zoro # G322859703
Mfr # X1E-FAS-NUT-LOC-3468x2
product price: 
$35.25
/pk 2, $17.63/ea
X1 Tools 1 1/8-7 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 6PK X1E-FAS-NUT-LOC-3466x6
X1 Tools

1 1/8-7 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 6PK

Zoro # G122856469
Mfr # X1E-FAS-NUT-LOC-3466x6
product price: 
$56.95
/pk 6, $9.49/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: 
$1,878.99
/pk 1000, $1.88/ea
X1 Tools 7/8-9 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 200PK X1E-FAS-NUT-LOC-3750x200
X1 Tools

7/8-9 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 200PK

Zoro # G922855952
Mfr # X1E-FAS-NUT-LOC-3750x200
product price: 
$4,068.99
/pk 200, $20.34/ea
Zoro Select Lock Nut, 9/16"-12, Nylon, Zinc Plated, 0.469 in Ht, 200 PK 56NS
Zoro Select

Lock Nut, 9/16"-12, Nylon, Zinc Plated, 0.469 in Ht, 200 PK

Zoro # G2449935
Mfr # 56NS
product price: 
$85.49
/pk 200, $0.43/ea
Newport Fasteners Nylon Insert Lock Nut, 5/16"-18, Steel, Grade A, Zinc Plated, 100 PK 179130-PR-100
Newport Fasteners

Nylon Insert Lock Nut, 5/16"-18, Steel, Grade A, Zinc Plated, 100 PK

Zoro # G806327544
Mfr # 179130-PR-100
product price: 
$38.99
/pk 100, $0.39/ea
Lock Nuts (10,000+ items) - Page 179
  • First
  • Previous
  • 179
    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