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
  • Promo Codes
  • Contact Us
Added to Cart
Skip to Main Content
FREE Shipping on orders over $50 after you . Restrictions Apply
Zoro Homepage
Close icon
Clipboard Icon Clipboard Icon Quick Order
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
Search Feedback

Lock Nuts (10,000+ items) - Page 158

X1 Tools 9/16-12 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts X1E-FAS-NUT-LOC-3446x1
X1 Tools

9/16-12 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts

Zoro # G022845303
Mfr # X1E-FAS-NUT-LOC-3446x1
product price:  $1.15
/ea
X1 Tools 8-32 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 1000PK X1E-FAS-NUT-LOC-2012x1000
X1 Tools

8-32 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 1000PK

Zoro # G522862091
Mfr # X1E-FAS-NUT-LOC-2012x1000
product price:  $3,326.99
/pk 1000, $3.33/ea
X1 Tools 10-32 Black-Oxide Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 6PK X1E-FAS-NUT-LOC-3818x6
X1 Tools

10-32 Black-Oxide Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 6PK

Zoro # G322864493
Mfr # X1E-FAS-NUT-LOC-3818x6
product price:  $4.59
/pk 6, $0.77/ea
X1 Tools 8-32 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 75PK X1E-FAS-NUT-LOC-3418x75
X1 Tools

8-32 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 75PK

Zoro # G422858262
Mfr # X1E-FAS-NUT-LOC-3418x75
product price:  $12.85
/pk 75, $0.17/ea
X1 Tools 5/8-11 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts X1E-FAS-NUT-LOC-2137x1
X1 Tools

5/8-11 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts

Zoro # G922849210
Mfr # X1E-FAS-NUT-LOC-2137x1
product price:  $4.35
/ea
X1 Tools M24 x 3 mm Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 500PK X1E-FAS-NUT-LOC-3498x500
X1 Tools

M24 x 3 mm Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 500PK

Zoro # G422858415
Mfr # X1E-FAS-NUT-LOC-3498x500
product price:  $14,524.99
/pk 500, $29.05/ea
X1 Tools 10-32 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 500PK X1E-FAS-NUT-LOC-3912x500
X1 Tools

10-32 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 500PK

Zoro # G822861855
Mfr # X1E-FAS-NUT-LOC-3912x500
product price:  $363.99
/pk 500, $0.73/ea
X1 Tools 5/8-18 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 50PK X1E-FAS-NUT-LOC-2138x50
X1 Tools

5/8-18 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 50PK

Zoro # G122854199
Mfr # X1E-FAS-NUT-LOC-2138x50
product price:  $170.99
/pk 50, $3.42/ea
X1 Tools 5/16-18 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Ins. Locknuts, 200PK X1E-FAS-NUT-LOC-2020x200
X1 Tools

5/16-18 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Ins. Locknuts, 200PK

Zoro # G922860284
Mfr # X1E-FAS-NUT-LOC-2020x200
product price:  $790.99
/pk 200, $3.95/ea
X1 Tools 7/16-20 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 10PK X1E-FAS-NUT-LOC-3024x10
X1 Tools

7/16-20 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 10PK

Zoro # G322854111
Mfr # X1E-FAS-NUT-LOC-3024x10
product price:  $15.15
/pk 10, $1.52/ea
X1 Tools 1/4-20 Black-Oxide C.R. 18-8 Stainless Steel Nylon-Insert Locknuts, 75PK X1E-FAS-NUT-LOC-2232x75
X1 Tools

1/4-20 Black-Oxide C.R. 18-8 Stainless Steel Nylon-Insert Locknuts, 75PK

Zoro # G622863257
Mfr # X1E-FAS-NUT-LOC-2232x75
product price:  $49.49
/pk 75, $0.66/ea
X1 Tools M20 x 2.5 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 400PK X1E-FAS-NUT-LOC-1990x400
X1 Tools

M20 x 2.5 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 400PK

Zoro # G622847790
Mfr # X1E-FAS-NUT-LOC-1990x400
product price:  $1,729.99
/pk 400, $4.32/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 7/8-9 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts X1E-FAS-NUT-LOC-3458x1
X1 Tools

7/8-9 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts

Zoro # G722853295
Mfr # X1E-FAS-NUT-LOC-3458x1
product price:  $5.19
/ea
X1 Tools 3/4-16 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 4PK X1E-FAS-NUT-LOC-3034x4
X1 Tools

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

Zoro # G422856343
Mfr # X1E-FAS-NUT-LOC-3034x4
product price:  $34.65
/pk 4, $8.66/ea
X1 Tools 1/2-20 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 250PK X1E-FAS-NUT-LOC-3028x250
X1 Tools

1/2-20 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 250PK

Zoro # G022861457
Mfr # X1E-FAS-NUT-LOC-3028x250
product price:  $637.99
/pk 250, $2.55/ea
X1 Tools 1/2-13 Corrosion-Resistant 316 Stainless Steel Nylon-Insert Locknuts, 150PK X1E-FAS-NUT-LOC-2340x150
X1 Tools

1/2-13 Corrosion-Resistant 316 Stainless Steel Nylon-Insert Locknuts, 150PK

Zoro # G122858821
Mfr # X1E-FAS-NUT-LOC-2340x150
product price:  $277.99
/pk 150, $1.85/ea
X1 Tools 5/8-11 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 500PK X1E-FAS-NUT-LOC-3450x500
X1 Tools

5/8-11 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 500PK

Zoro # G922867580
Mfr # X1E-FAS-NUT-LOC-3450x500
product price:  $394.99
/pk 500, $0.79/ea
X1 Tools 6-32 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 100PK X1E-FAS-NUT-LOC-2010x100
X1 Tools

6-32 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 100PK

Zoro # G522853006
Mfr # X1E-FAS-NUT-LOC-2010x100
product price:  $353.99
/pk 100, $3.54/ea
X1 Tools 1/4-20 Ultra Hi Performance Black-Oxide Steel Nylon-Insert Locknuts, 6PK X1E-FAS-NUT-LOC-1210x6
X1 Tools

1/4-20 Ultra Hi Performance Black-Oxide Steel Nylon-Insert Locknuts, 6PK

Zoro # G722846525
Mfr # X1E-FAS-NUT-LOC-1210x6
product price:  $3.99
/pk 6, $0.67/ea
X1 Tools 3/8-16 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 25PK X1E-FAS-NUT-LOC-2022x25
X1 Tools

3/8-16 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 25PK

Zoro # G522851378
Mfr # X1E-FAS-NUT-LOC-2022x25
product price:  $111.99
/pk 25, $4.48/ea
X1 Tools 1-8 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 4PK X1E-FAS-NUT-LOC-3754x4
X1 Tools

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

Zoro # G022849264
Mfr # X1E-FAS-NUT-LOC-3754x4
product price:  $104.99
/pk 4, $26.25/ea
No Product Image Available
Zoro Select

Lock Nut, Steel, 3/32", PK10

Zoro # G122962634
Mfr # FLHJI050CAD-010P
product price:  $26.69
/pk 10, $2.67/ea
X1 Tools 1 1/8-7 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 50PK X1E-FAS-NUT-LOC-3758x50
X1 Tools

1 1/8-7 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 50PK

Zoro # G922848497
Mfr # X1E-FAS-NUT-LOC-3758x50
product price:  $1,775.99
/pk 50, $35.52/ea
X1 Tools 7/8-14 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 15PK X1E-FAS-NUT-LOC-1962x15
X1 Tools

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

Zoro # G222849729
Mfr # X1E-FAS-NUT-LOC-1962x15
product price:  $62.39
/pk 15, $4.16/ea
Oxoxo 5/16-18 K Lock Nut Zinc and Bake, 1500PK 181974
Oxoxo

5/16-18 K Lock Nut Zinc and Bake, 1500PK

Zoro # G322662457
Mfr # 181974
product price:  $164.99
/pk 1500, $0.11/ea
X1 Tools M4 x 0.7 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 50PK X1E-FAS-NUT-LOC-1972x50
X1 Tools

M4 x 0.7 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 50PK

Zoro # G122865553
Mfr # X1E-FAS-NUT-LOC-1972x50
product price:  $11.35
/pk 50, $0.23/ea
No Product Image Available
Zoro Select

Lock Nut, Steel, 21/64", PK2

Zoro # G222962794
Mfr # FLHHI075CAD-002P
product price:  $26.19
/pk 2, $13.10/ea
X1 Tools 6-32 Black-Oxide C.R. 18-8 Stainless Steel Nylon-Insert Locknuts, 50PK X1E-FAS-NUT-LOC-2218x50
X1 Tools

6-32 Black-Oxide C.R. 18-8 Stainless Steel Nylon-Insert Locknuts, 50PK

Zoro # G322849544
Mfr # X1E-FAS-NUT-LOC-2218x50
product price:  $18.19
/pk 50, $0.36/ea
X1 Tools 5/16-24 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 12PK X1E-FAS-NUT-LOC-1934x12
X1 Tools

5/16-24 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 12PK

Zoro # G622862823
Mfr # X1E-FAS-NUT-LOC-1934x12
product price:  $2.75
/pk 12, $0.23/ea
X1 Tools 1 1/2-6 Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts X1E-FAS-NUT-LOC-1632x1
X1 Tools

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

Zoro # G822847811
Mfr # X1E-FAS-NUT-LOC-1632x1
product price:  $39.65
/ea
X1 Tools 7/16-14 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 6PK X1E-FAS-NUT-LOC-3438x6
X1 Tools

7/16-14 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 6PK

Zoro # G122846736
Mfr # X1E-FAS-NUT-LOC-3438x6
product price:  $2.15
/pk 6, $0.36/ea
X1 Tools 3/8-16 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 150PK X1E-FAS-NUT-LOC-3434x150
X1 Tools

3/8-16 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 150PK

Zoro # G422852468
Mfr # X1E-FAS-NUT-LOC-3434x150
product price:  $37.95
/pk 150, $0.25/ea
No Product Image Available
Zoro Select

Lock Nut, Steel, 7/64", PK15

Zoro # G022962406
Mfr # FLHHI031-015P
product price:  $16.89
/pk 15, $1.13/ea
X1 Tools 12-24 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 2PK X1E-FAS-NUT-LOC-1926x2
X1 Tools

12-24 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 2PK

Zoro # G022852134
Mfr # X1E-FAS-NUT-LOC-1926x2
product price:  $0.81
/pk 2, $0.41/ea
X1 Tools M6 x 1 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 75PK X1E-FAS-NUT-LOC-1976x75
X1 Tools

M6 x 1 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 75PK

Zoro # G022857122
Mfr # X1E-FAS-NUT-LOC-1976x75
product price:  $19.39
/pk 75, $0.26/ea
Lock Nuts (10,000+ items) - Page 158
  • First
  • Previous
  • 158
    of 277 pages
  • Next
  • Last

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
10-24 lock nut10-24 nylon lock nut10-24 nylon10-32 lock nuts10-32 nut
1 1 2 lock nut10-24 washer10-24 nylock10-32 stainless nut10-32 washer

Sign Up & 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
  • Promo Codes
  • Sitemap
  • Track My Order

Services

  • Customer Service
  • FAQs
  • Net 30 Terms
  • Reseller Program
  • Sell on Zoro
  • Participate in Research

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