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 222

X1 Tools 1/2-20 UHP Black-Oxide Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 15PK X1E-FAS-NUT-LOC-3226x15
X1 Tools

1/2-20 UHP Black-Oxide Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 15PK

Zoro # G222852729
Mfr # X1E-FAS-NUT-LOC-3226x15
product price: 
$59.25
/pk 15, $3.95/ea
X1 Tools 7/8-9 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 25PK X1E-FAS-NUT-LOC-2141x25
X1 Tools

7/8-9 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 25PK

Zoro # G322863021
Mfr # X1E-FAS-NUT-LOC-2141x25
product price: 
$225.99
/pk 25, $9.04/ea
X1 Tools 1/4-28 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 2PK X1E-FAS-NUT-LOC-3916x2
X1 Tools

1/4-28 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 2PK

Zoro # G922852975
Mfr # X1E-FAS-NUT-LOC-3916x2
product price: 
$1.99
/pk 2, $1.00/ea
Sold in mult. of 5 for $9.95
X1 Tools 1-14 UHP Black-Oxide Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 200PK X1E-FAS-NUT-LOC-3236x200
X1 Tools

1-14 UHP Black-Oxide Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 200PK

Zoro # G722853226
Mfr # X1E-FAS-NUT-LOC-3236x200
product price: 
$3,429.99
/pk 200, $17.15/ea
X1 Tools 6-32 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 400PK X1E-FAS-NUT-LOC-2010x400
X1 Tools

6-32 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 400PK

Zoro # G222852675
Mfr # X1E-FAS-NUT-LOC-2010x400
product price: 
$1,361.99
/pk 400, $3.40/ea
X1 Tools 3/8-16 Black-Oxide C.R. 18-8 Stainless Steel Nylon-Insert Locknuts, 250PK X1E-FAS-NUT-LOC-2240x250
X1 Tools

3/8-16 Black-Oxide C.R. 18-8 Stainless Steel Nylon-Insert Locknuts, 250PK

Zoro # G722850836
Mfr # X1E-FAS-NUT-LOC-2240x250
product price: 
$366.99
/pk 250, $1.47/ea
X1 Tools 4-40 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 4PK X1E-FAS-NUT-LOC-3412x4
X1 Tools

4-40 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 4PK

Zoro # G022856279
Mfr # X1E-FAS-NUT-LOC-3412x4
product price: 
$1.49
/pk 4, $0.37/ea
Sold in mult. of 6 for $8.94
Newport Fasteners Nylon Insert Lock Nut, M8-1.25, Steel, Class 8, Zinc Plated, 3000 PK 837583-BR-3000
Newport Fasteners

Nylon Insert Lock Nut, M8-1.25, Steel, Class 8, Zinc Plated, 3000 PK

Zoro # G006331907
Mfr # 837583-BR-3000
product price: 
$493.99
/pk 3000, $0.16/ea
Zoro Select Lock Nut, #6-32, 18-8 Stainless Steel, Not Graded, 250 PK 06NXL188
Zoro Select

Lock Nut, #6-32, 18-8 Stainless Steel, Not Graded, 250 PK

Zoro # G2454293
Mfr # 06NXL188
product price: 
$271.99
/pk 250, $1.09/ea
X1 Tools M14 x 2 mm Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 25PK X1E-FAS-NUT-LOC-3490x25
X1 Tools

M14 x 2 mm Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 25PK

Zoro # G122850511
Mfr # X1E-FAS-NUT-LOC-3490x25
product price: 
$97.19
/pk 25, $3.89/ea
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 7/16-20 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 75PK X1E-FAS-NUT-LOC-1942x75
X1 Tools

7/16-20 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 75PK

Zoro # G222860038
Mfr # X1E-FAS-NUT-LOC-1942x75
product price: 
$33.39
/pk 75, $0.45/ea
X1 Tools 5/16-18 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Ins. Locknuts, 10PK X1E-FAS-NUT-LOC-2020x10
X1 Tools

5/16-18 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Ins. Locknuts, 10PK

Zoro # G022852851
Mfr # X1E-FAS-NUT-LOC-2020x10
product price: 
$47.75
/pk 10, $4.78/ea
Newport Fasteners Lock Nut, #5-40, Steel, Zinc Plated, 0.102 in Ht, 5000 PK 586099-BR-5000
Newport Fasteners

Lock Nut, #5-40, Steel, Zinc Plated, 0.102 in Ht, 5000 PK

Zoro # G306329710
Mfr # 586099-BR-5000
product price: 
$169.99
/pk 5000, $0.03/ea
Heico-Lock 2-Piece Wedge Lock Nut, M24-3.0, Steel, Class 10, Zinc-Coated, 19 16/25 mm Ht, 2 PK HLM-24-B
Heico-Lock

2-Piece Wedge Lock Nut, M24-3.0, Steel, Class 10, Zinc-Coated, 19 16/25 mm Ht, 2 PK

Zoro # G611471432
Mfr # HLM-24-B
product price: 
$28.85
/pk 2, $14.43/ea
X1 Tools 3/8-16 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 500PK X1E-FAS-NUT-LOC-2022x500
X1 Tools

3/8-16 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 500PK

Zoro # G522851804
Mfr # X1E-FAS-NUT-LOC-2022x500
product price: 
$2,025.99
/pk 500, $4.05/ea
X1 Tools 7/8-14 Hi Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 10PK X1E-FAS-NUT-LOC-3318x10
X1 Tools

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

Zoro # G222859896
Mfr # X1E-FAS-NUT-LOC-3318x10
product price: 
$138.99
/pk 10, $13.90/ea
X1 Tools 12-24 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 500PK X1E-FAS-NUT-LOC-3424x500
X1 Tools

12-24 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 500PK

Zoro # G522858452
Mfr # X1E-FAS-NUT-LOC-3424x500
product price: 
$88.99
/pk 500, $0.18/ea
Oxoxo 3/8-16 Nylon Insert Hex Locknut NE Light Hex Standard Height Grade 5 Zinc, 1500PK 538663
Oxoxo

3/8-16 Nylon Insert Hex Locknut NE Light Hex Standard Height Grade 5 Zinc, 1500PK

Zoro # G122668291
Mfr # 538663
product price: 
$395.99
/pk 1500, $0.26/ea
Oxoxo M20-1.50 Din 985 Metric Class 8 Nylon Insert Hex Locknut Zinc, 50PK 278218
Oxoxo

M20-1.50 Din 985 Metric Class 8 Nylon Insert Hex Locknut Zinc, 50PK

Zoro # G322675914
Mfr # 278218
product price: 
$112.99
/pk 50, $2.26/ea
X1 Tools 5/16-18 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 50PK X1E-FAS-NUT-LOC-1014x50
X1 Tools

5/16-18 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 50PK

Zoro # G722844170
Mfr # X1E-FAS-NUT-LOC-1014x50
product price: 
$37.75
/pk 50, $0.76/ea
X1 Tools 5/8-11 Ultra Hi Performance Black-Oxide Steel Nylon-Insert Locknuts, 75PK X1E-FAS-NUT-LOC-1234x75
X1 Tools

5/8-11 Ultra Hi Performance Black-Oxide Steel Nylon-Insert Locknuts, 75PK

Zoro # G022844757
Mfr # X1E-FAS-NUT-LOC-1234x75
product price: 
$223.99
/pk 75, $2.99/ea
X1 Tools M12 x 1.75 mm Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 4PK X1E-FAS-NUT-LOC-3488x4
X1 Tools

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

Zoro # G322850236
Mfr # X1E-FAS-NUT-LOC-3488x4
product price: 
$16.69
/pk 4, $4.17/ea
X1 Tools 1-14 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 500PK X1E-FAS-NUT-LOC-3464x500
X1 Tools

1-14 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 500PK

Zoro # G322848950
Mfr # X1E-FAS-NUT-LOC-3464x500
product price: 
$3,105.99
/pk 500, $6.21/ea
X1 Tools 5/8-11 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 400PK X1E-FAS-NUT-LOC-1952x400
X1 Tools

5/8-11 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 400PK

Zoro # G322855644
Mfr # X1E-FAS-NUT-LOC-1952x400
product price: 
$499.99
/pk 400, $1.25/ea
X1 Tools 3/8-16 Ultra Hi Performance Black-Oxide Steel Nylon-Insert Locknuts, 20PK X1E-FAS-NUT-LOC-1218x20
X1 Tools

3/8-16 Ultra Hi Performance Black-Oxide Steel Nylon-Insert Locknuts, 20PK

Zoro # G822853508
Mfr # X1E-FAS-NUT-LOC-1218x20
product price: 
$20.99
/pk 20, $1.05/ea
X1 Tools M18 x 2.5 mm Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 250PK X1E-FAS-NUT-LOC-3494x250
X1 Tools

M18 x 2.5 mm Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 250PK

Zoro # G422845569
Mfr # X1E-FAS-NUT-LOC-3494x250
product price: 
$3,712.99
/pk 250, $14.85/ea
X1 Tools 5/8-11 Hi Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 250PK X1E-FAS-NUT-LOC-3310x250
X1 Tools

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

Zoro # G522866952
Mfr # X1E-FAS-NUT-LOC-3310x250
product price: 
$1,330.99
/pk 250, $5.32/ea
X1 Tools 5-40 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 20PK X1E-FAS-NUT-LOC-1916x20
X1 Tools

5-40 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 20PK

Zoro # G322860778
Mfr # X1E-FAS-NUT-LOC-1916x20
product price: 
$2.69
/pk 20, $0.13/ea
Sold in mult. of 4 for $10.76
X1 Tools 5/8-18 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 75PK X1E-FAS-NUT-LOC-3452x75
X1 Tools

5/8-18 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 75PK

Zoro # G922846776
Mfr # X1E-FAS-NUT-LOC-3452x75
product price: 
$62.35
/pk 75, $0.83/ea
X1 Tools 1-8 Performance Zinc-Plated Steel Nylon-Insert Locknuts X1E-FAS-NUT-LOC-1964x1
X1 Tools

1-8 Performance Zinc-Plated Steel Nylon-Insert Locknuts

Zoro # G122853536
Mfr # X1E-FAS-NUT-LOC-1964x1
product price: 
$11.15
/ea
Sold in mult. of 2 for $22.30
X1 Tools 1/2-13 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 250PK X1E-FAS-NUT-LOC-3026x250
X1 Tools

1/2-13 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 250PK

Zoro # G622862335
Mfr # X1E-FAS-NUT-LOC-3026x250
product price: 
$312.99
/pk 250, $1.25/ea
X1 Tools 7/8-9 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 120PK X1E-FAS-NUT-LOC-3750x120
X1 Tools

7/8-9 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 120PK

Zoro # G422862924
Mfr # X1E-FAS-NUT-LOC-3750x120
product price: 
$2,286.99
/pk 120, $19.06/ea
Titan Industrial Supply Lock Nut, Nylon, Grade 8 T5811NLNYZ8
Titan Industrial Supply

Lock Nut, Nylon, Grade 8

Zoro # G609152848
Mfr # T5811NLNYZ8
product price: 
$1.25
/ea
Sold in mult. of 7 for $8.75
Newport Fasteners Nylon Insert Lock Nut, 1-1/4"-7, Steel, Grade A, Zinc Plated, 40 PK 476815-BR-40
Newport Fasteners

Nylon Insert Lock Nut, 1-1/4"-7, Steel, Grade A, Zinc Plated, 40 PK

Zoro # G806327735
Mfr # 476815-BR-40
product price: 
$372.99
/pk 40, $9.32/ea
Oxoxo M12-1.75 Metric Conical K Keps Lock Nut Zinc and Bake, 500PK 637873
Oxoxo

M12-1.75 Metric Conical K Keps Lock Nut Zinc and Bake, 500PK

Zoro # G022685947
Mfr # 637873
product price: 
$665.99
/pk 500, $1.33/ea
Lock Nuts (10,000+ items) - Page 222
  • First
  • Previous
  • 222
    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
3/4 lock nuts1/2" flange lock nut1/4 npt locknuts3/8-16 ss nuts1/4" locking nut
5/16-18 nylon locking nutdistorted lock nutn-10 lock nut2 inch locknut1" lock 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