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 Customer Service
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

Lock Nuts (10,000+ items) - Page 142

X1 Tools 10-32 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 400PK X1E-FAS-NUT-LOC-3422x400
X1 Tools

10-32 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 400PK

Zoro # G022859218
Mfr # X1E-FAS-NUT-LOC-3422x400
product price:  $38.89
/pk 400, $0.10/ea
X1 Tools 3/8-16 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 250PK X1E-FAS-NUT-LOC-2022x250
X1 Tools

3/8-16 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 250PK

Zoro # G022864984
Mfr # X1E-FAS-NUT-LOC-2022x250
product price:  $1,028.99
/pk 250, $4.12/ea
X1 Tools 1 1/4-7 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 12PK X1E-FAS-NUT-LOC-3468x12
X1 Tools

1 1/4-7 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 12PK

Zoro # G422860302
Mfr # X1E-FAS-NUT-LOC-3468x12
product price:  $167.99
/pk 12, $14.00/ea
X1 Tools 1 1/4-7 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 12PK X1E-FAS-NUT-LOC-2147x12
X1 Tools

1 1/4-7 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 12PK

Zoro # G922850711
Mfr # X1E-FAS-NUT-LOC-2147x12
product price:  $383.99
/pk 12, $32.00/ea
X1 Tools 5/16-18 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Ins. Locknuts, 2PK X1E-FAS-NUT-LOC-2020x2
X1 Tools

5/16-18 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Ins. Locknuts, 2PK

Zoro # G322845591
Mfr # X1E-FAS-NUT-LOC-2020x2
product price:  $14.15
/pk 2, $7.08/ea
X1 Tools 7/16-20 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 4PK X1E-FAS-NUT-LOC-3024x4
X1 Tools

7/16-20 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 4PK

Zoro # G322854340
Mfr # X1E-FAS-NUT-LOC-3024x4
product price:  $4.89
/pk 4, $1.22/ea
X1 Tools 1/2-20 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 4PK X1E-FAS-NUT-LOC-3444x4
X1 Tools

1/2-20 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 4PK

Zoro # G922862660
Mfr # X1E-FAS-NUT-LOC-3444x4
product price:  $2.19
/pk 4, $0.55/ea
X1 Tools 1 1/2-12 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 6PK X1E-FAS-NUT-LOC-1066x6
X1 Tools

1 1/2-12 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 6PK

Zoro # G722846358
Mfr # X1E-FAS-NUT-LOC-1066x6
product price:  $330.99
/pk 6, $55.17/ea
X1 Tools 1 1/2-12 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 25PK X1E-FAS-NUT-LOC-3042x25
X1 Tools

1 1/2-12 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 25PK

Zoro # G722864147
Mfr # X1E-FAS-NUT-LOC-3042x25
product price:  $1,818.99
/pk 25, $72.76/ea
X1 Tools 5/8-18 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 500PK X1E-FAS-NUT-LOC-2138x500
X1 Tools

5/8-18 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 500PK

Zoro # G222851357
Mfr # X1E-FAS-NUT-LOC-2138x500
product price:  $1,983.99
/pk 500, $3.97/ea
X1 Tools 1 1/4-7 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 100PK X1E-FAS-NUT-LOC-1970x100
X1 Tools

1 1/4-7 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 100PK

Zoro # G522860264
Mfr # X1E-FAS-NUT-LOC-1970x100
product price:  $2,262.99
/pk 100, $22.63/ea
X1 Tools 9/16-18 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 15PK X1E-FAS-NUT-LOC-3448x15
X1 Tools

9/16-18 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 15PK

Zoro # G522866723
Mfr # X1E-FAS-NUT-LOC-3448x15
product price:  $12.69
/pk 15, $0.85/ea
X1 Tools 1/2-20 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 15PK X1E-FAS-NUT-LOC-3444x15
X1 Tools

1/2-20 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 15PK

Zoro # G222854419
Mfr # X1E-FAS-NUT-LOC-3444x15
product price:  $6.65
/pk 15, $0.44/ea
X1 Tools 7/16-20 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 8PK X1E-FAS-NUT-LOC-3024x8
X1 Tools

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

Zoro # G122853727
Mfr # X1E-FAS-NUT-LOC-3024x8
product price:  $11.99
/pk 8, $1.50/ea
X1 Tools 3/4-16 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 4PK X1E-FAS-NUT-LOC-1958x4
X1 Tools

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

Zoro # G322845911
Mfr # X1E-FAS-NUT-LOC-1958x4
product price:  $12.75
/pk 4, $3.19/ea
X1 Tools 5/16-18 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 200PK X1E-FAS-NUT-LOC-3918x200
X1 Tools

5/16-18 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 200PK

Zoro # G222850602
Mfr # X1E-FAS-NUT-LOC-3918x200
product price:  $167.99
/pk 200, $0.84/ea
X1 Tools 3/4-10 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 75PK X1E-FAS-NUT-LOC-3934x75
X1 Tools

3/4-10 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 75PK

Zoro # G822865341
Mfr # X1E-FAS-NUT-LOC-3934x75
product price:  $2,130.99
/pk 75, $28.41/ea
Newport Fasteners Nylon Insert Lock Nut, M12-1.75, Steel, Class 8, Zinc Plated, 1000 PK 547790-BR-1000
Newport Fasteners

Nylon Insert Lock Nut, M12-1.75, Steel, Class 8, Zinc Plated, 1000 PK

Zoro # G406329832
Mfr # 547790-BR-1000
product price:  $363.99
/pk 1000, $0.36/ea
X1 Tools 3/4-10 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 10PK X1E-FAS-NUT-LOC-3746x10
X1 Tools

3/4-10 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 10PK

Zoro # G422858729
Mfr # X1E-FAS-NUT-LOC-3746x10
product price:  $172.99
/pk 10, $17.30/ea
X1 Tools 1/2-13 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 75PK X1E-FAS-NUT-LOC-3026x75
X1 Tools

1/2-13 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 75PK

Zoro # G322863427
Mfr # X1E-FAS-NUT-LOC-3026x75
product price:  $103.99
/pk 75, $1.39/ea
X1 Tools M4 x 0.7 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 100PK X1E-FAS-NUT-LOC-1972x100
X1 Tools

M4 x 0.7 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 100PK

Zoro # G322845027
Mfr # X1E-FAS-NUT-LOC-1972x100
product price:  $18.49
/pk 100, $0.18/ea
X1 Tools 7/8-9 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 200PK X1E-FAS-NUT-LOC-1960x200
X1 Tools

7/8-9 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 200PK

Zoro # G622844850
Mfr # X1E-FAS-NUT-LOC-1960x200
product price:  $970.99
/pk 200, $4.85/ea
X1 Tools 3/8-16 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 120PK X1E-FAS-NUT-LOC-3922x120
X1 Tools

3/8-16 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 120PK

Zoro # G222860168
Mfr # X1E-FAS-NUT-LOC-3922x120
product price:  $152.99
/pk 120, $1.27/ea
No Product Image Available
Standard Locknut

Bearing Lock Nut, Steel

Zoro # G122964119
Mfr # KM20
product price:  $90.15
/ea
X1 Tools 1-8 Hi Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 500PK X1E-FAS-NUT-LOC-3320x500
X1 Tools

1-8 Hi Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 500PK

Zoro # G522861575
Mfr # X1E-FAS-NUT-LOC-3320x500
product price:  $7,542.99
/pk 500, $15.09/ea
X1 Tools 1/2-13 Performance Black-Corrosion-Resistant-Coated Steel Thin-Profile Nylon-Insert Locknuts X1E-FAS-NUT-LOC-3624x1
X1 Tools

1/2-13 Performance Black-Corrosion-Resistant-Coated Steel Thin-Profile Nylon-Insert Locknuts

Zoro # G422856787
Mfr # X1E-FAS-NUT-LOC-3624x1
product price:  $6.15
/ea
X1 Tools 3/8-16 Corrosion-Resistant 316 Stainless Steel Nylon-Insert Locknuts, 50PK X1E-FAS-NUT-LOC-2332x50
X1 Tools

3/8-16 Corrosion-Resistant 316 Stainless Steel Nylon-Insert Locknuts, 50PK

Zoro # G822850996
Mfr # X1E-FAS-NUT-LOC-2332x50
product price:  $41.69
/pk 50, $0.83/ea
X1 Tools 4-40 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts X1E-FAS-NUT-LOC-3710x1
X1 Tools

4-40 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts

Zoro # G322853985
Mfr # X1E-FAS-NUT-LOC-3710x1
product price:  $0.74
/ea
X1 Tools M12 x 1.75 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 2PK X1E-FAS-NUT-LOC-1982x2
X1 Tools

M12 x 1.75 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 2PK

Zoro # G622862199
Mfr # X1E-FAS-NUT-LOC-1982x2
product price:  $2.19
/pk 2, $1.10/ea
X1 Tools 1-8 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 8PK X1E-FAS-NUT-LOC-3462x8
X1 Tools

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

Zoro # G922857529
Mfr # X1E-FAS-NUT-LOC-3462x8
product price:  $47.69
/pk 8, $5.96/ea
X1 Tools 1 1/2-6 Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 500PK X1E-FAS-NUT-LOC-1632x500
X1 Tools

1 1/2-6 Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 500PK

Zoro # G122846095
Mfr # X1E-FAS-NUT-LOC-1632x500
product price:  $21,695.99
/pk 500, $43.39/ea
X1 Tools 10-32 Performance Black-Corrosion-Resistant-Coated Steel Thin-Profile Nylon-Insert Locknuts X1E-FAS-NUT-LOC-3616x1
X1 Tools

10-32 Performance Black-Corrosion-Resistant-Coated Steel Thin-Profile Nylon-Insert Locknuts

Zoro # G622866197
Mfr # X1E-FAS-NUT-LOC-3616x1
product price:  $5.79
/ea
Oxoxo 1/4-20 NTE Thin Pattern Nylon Insert Hex Lock Nut 18 8 Stainless Steel, 1000PK 320201
Oxoxo

1/4-20 NTE Thin Pattern Nylon Insert Hex Lock Nut 18 8 Stainless Steel, 1000PK

Zoro # G122675701
Mfr # 320201
product price:  $179.99
/pk 1000, $0.18/ea
X1 Tools 12-24 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 25PK X1E-FAS-NUT-LOC-3424x25
X1 Tools

12-24 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 25PK

Zoro # G622860416
Mfr # X1E-FAS-NUT-LOC-3424x25
product price:  $5.55
/pk 25, $0.22/ea
X1 Tools 4-40 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 12PK X1E-FAS-NUT-LOC-2114x12
X1 Tools

4-40 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 12PK

Zoro # G622862410
Mfr # X1E-FAS-NUT-LOC-2114x12
product price:  $2.15
/pk 12, $0.18/ea
Newport Fasteners Nylon Insert Lock Nut, 1/2"-20, 316 Stainless Steel, Not Graded, 100 PK 373302-PR-100
Newport Fasteners

Nylon Insert Lock Nut, 1/2"-20, 316 Stainless Steel, Not Graded, 100 PK

Zoro # G406327630
Mfr # 373302-PR-100
product price:  $237.99
/pk 100, $2.38/ea
Lock Nuts (10,000+ items) - Page 142
  • First
  • Previous
  • 142
    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
n-10 lock nutnylon-insert locknutslock nut 5/16-183/8-16 nuts stainless steellock nut nylon insert
1/4-20 stainless steel nutserrated flange lock nut3/8" flange nutsflanged locknut2 inch locknut

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