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
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 248

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 1 1/8-7 Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 75PK X1E-FAS-NUT-LOC-1630x75
X1 Tools

1 1/8-7 Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 75PK

Zoro # G022863734
Mfr # X1E-FAS-NUT-LOC-1630x75
product price:  $900.99
/pk 75, $12.01/ea
X1 Tools 1-8 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 100PK X1E-FAS-NUT-LOC-1964x100
X1 Tools

1-8 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 100PK

Zoro # G222853337
Mfr # X1E-FAS-NUT-LOC-1964x100
product price:  $785.99
/pk 100, $7.86/ea
X1 Tools 1/4-20 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 15PK X1E-FAS-NUT-LOC-2018x15
X1 Tools

1/4-20 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 15PK

Zoro # G322863373
Mfr # X1E-FAS-NUT-LOC-2018x15
product price:  $64.55
/pk 15, $4.30/ea
X1 Tools M20 x 2.5 mm Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 8PK X1E-FAS-NUT-LOC-3496x8
X1 Tools

M20 x 2.5 mm Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 8PK

Zoro # G922850544
Mfr # X1E-FAS-NUT-LOC-3496x8
product price:  $123.99
/pk 8, $15.50/ea
X1 Tools 3/4-10 Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 15PK X1E-FAS-NUT-LOC-1624x15
X1 Tools

3/4-10 Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 15PK

Zoro # G622861055
Mfr # X1E-FAS-NUT-LOC-1624x15
product price:  $31.59
/pk 15, $2.11/ea
X1 Tools 3/8-16 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 100PK X1E-FAS-NUT-LOC-2129x100
X1 Tools

3/8-16 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 100PK

Zoro # G322847069
Mfr # X1E-FAS-NUT-LOC-2129x100
product price:  $75.89
/pk 100, $0.76/ea
X1 Tools 1/2-20 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 20PK X1E-FAS-NUT-LOC-3932x20
X1 Tools

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

Zoro # G222849620
Mfr # X1E-FAS-NUT-LOC-3932x20
product price:  $60.49
/pk 20, $3.02/ea
X1 Tools 3/8-16 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 12PK X1E-FAS-NUT-LOC-2129x12
X1 Tools

3/8-16 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 12PK

Zoro # G522866389
Mfr # X1E-FAS-NUT-LOC-2129x12
product price:  $14.15
/pk 12, $1.18/ea
X1 Tools 7/16-20 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 10PK X1E-FAS-NUT-LOC-1024x10
X1 Tools

7/16-20 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 10PK

Zoro # G822847620
Mfr # X1E-FAS-NUT-LOC-1024x10
product price:  $16.49
/pk 10, $1.65/ea
X1 Tools 10-24 Black-Oxide C.R. 18-8 Stainless Steel Nylon-Insert Locknuts, 250PK X1E-FAS-NUT-LOC-2226x250
X1 Tools

10-24 Black-Oxide C.R. 18-8 Stainless Steel Nylon-Insert Locknuts, 250PK

Zoro # G422853588
Mfr # X1E-FAS-NUT-LOC-2226x250
product price:  $84.19
/pk 250, $0.34/ea
X1 Tools 3/8-16 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 15PK X1E-FAS-NUT-LOC-3434x15
X1 Tools

3/8-16 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 15PK

Zoro # G922867313
Mfr # X1E-FAS-NUT-LOC-3434x15
product price:  $3.79
/pk 15, $0.25/ea
X1 Tools M10 x 1.5 mm Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 12PK X1E-FAS-NUT-LOC-3486x12
X1 Tools

M10 x 1.5 mm Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 12PK

Zoro # G822847439
Mfr # X1E-FAS-NUT-LOC-3486x12
product price:  $26.89
/pk 12, $2.24/ea
X1 Tools 5/16-24 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 2PK X1E-FAS-NUT-LOC-1016x2
X1 Tools

5/16-24 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 2PK

Zoro # G422844425
Mfr # X1E-FAS-NUT-LOC-1016x2
product price:  $2.15
/pk 2, $1.08/ea
Sold in mult. of 5 for $10.75
X1 Tools 3/4-16 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 150PK X1E-FAS-NUT-LOC-3456x150
X1 Tools

3/4-16 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 150PK

Zoro # G922862363
Mfr # X1E-FAS-NUT-LOC-3456x150
product price:  $283.99
/pk 150, $1.89/ea
X1 Tools 1/4-20 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 200PK X1E-FAS-NUT-LOC-2125x200
X1 Tools

1/4-20 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 200PK

Zoro # G022867381
Mfr # X1E-FAS-NUT-LOC-2125x200
product price:  $59.49
/pk 200, $0.30/ea
X1 Tools M16 x 2 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 4PK X1E-FAS-NUT-LOC-1986x4
X1 Tools

M16 x 2 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 4PK

Zoro # G022853162
Mfr # X1E-FAS-NUT-LOC-1986x4
product price:  $11.29
/pk 4, $2.82/ea
Sold in mult. of 2 for $22.58
X1 Tools M4 x 0.7 mm Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 200PK X1E-FAS-NUT-LOC-3478x200
X1 Tools

M4 x 0.7 mm Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 200PK

Zoro # G322867098
Mfr # X1E-FAS-NUT-LOC-3478x200
product price:  $129.99
/pk 200, $0.65/ea
X1 Tools 5/16-18 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 400PK X1E-FAS-NUT-LOC-1932x400
X1 Tools

5/16-18 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 400PK

Zoro # G222858912
Mfr # X1E-FAS-NUT-LOC-1932x400
product price:  $68.65
/pk 400, $0.17/ea
Oxoxo 3/8-16 NTE Thin Pattern Nylon Insert Hex Lock Nut Coarse Thread Zinc Yellow, 1000PK 420840
Oxoxo

3/8-16 NTE Thin Pattern Nylon Insert Hex Lock Nut Coarse Thread Zinc Yellow, 1000PK

Zoro # G322670414
Mfr # 420840
product price:  $189.99
/pk 1000, $0.19/ea
X1 Tools 10-24 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 8PK X1E-FAS-NUT-LOC-3716x8
X1 Tools

10-24 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 8PK

Zoro # G622860768
Mfr # X1E-FAS-NUT-LOC-3716x8
product price:  $2.69
/pk 8, $0.34/ea
X1 Tools 3/4-10 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 400PK X1E-FAS-NUT-LOC-3934x400
X1 Tools

3/4-10 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 400PK

Zoro # G222848470
Mfr # X1E-FAS-NUT-LOC-3934x400
product price:  $11,147.99
/pk 400, $27.87/ea
X1 Tools 7/8-14 Hi Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 100PK X1E-FAS-NUT-LOC-3318x100
X1 Tools

7/8-14 Hi Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 100PK

Zoro # G522848347
Mfr # X1E-FAS-NUT-LOC-3318x100
product price:  $1,270.99
/pk 100, $12.71/ea
X1 Tools 7/16-14 Performance Zinc-Plated Steel Nylon-Insert Locknuts X1E-FAS-NUT-LOC-1940x1
X1 Tools

7/16-14 Performance Zinc-Plated Steel Nylon-Insert Locknuts

Zoro # G522853549
Mfr # X1E-FAS-NUT-LOC-1940x1
product price:  $0.83
/ea
X1 Tools 5/8-18 UHP Black-Oxide Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 50PK X1E-FAS-NUT-LOC-3230x50
X1 Tools

5/8-18 UHP Black-Oxide Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 50PK

Zoro # G222859414
Mfr # X1E-FAS-NUT-LOC-3230x50
product price:  $224.99
/pk 50, $4.50/ea
X1 Tools 1-8 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 50PK X1E-FAS-NUT-LOC-3754x50
X1 Tools

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

Zoro # G222857311
Mfr # X1E-FAS-NUT-LOC-3754x50
product price:  $1,188.99
/pk 50, $23.78/ea
X1 Tools 3/4-16 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 150PK X1E-FAS-NUT-LOC-3748x150
X1 Tools

3/4-16 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 150PK

Zoro # G922867849
Mfr # X1E-FAS-NUT-LOC-3748x150
product price:  $4,379.99
/pk 150, $29.20/ea
Oxoxo 1/2-13 Nylon Insert Flange Stop Hex Lock Nut Zinc, 300PK 410689
Oxoxo

1/2-13 Nylon Insert Flange Stop Hex Lock Nut Zinc, 300PK

Zoro # G322676065
Mfr # 410689
product price:  $219.99
/pk 300, $0.73/ea
X1 Tools 1/4-20 Black-Oxide C.R. 18-8 Stainless Steel Nylon-Insert Locknuts, 4PK X1E-FAS-NUT-LOC-2232x4
X1 Tools

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

Zoro # G822847477
Mfr # X1E-FAS-NUT-LOC-2232x4
product price:  $3.45
/pk 4, $0.86/ea
Newport Fasteners Nylon Insert Lock Nut, M5-0.80, Steel, Class 8, Zinc Plated, 100 PK 804233-PR-100
Newport Fasteners

Nylon Insert Lock Nut, M5-0.80, Steel, Class 8, Zinc Plated, 100 PK

Zoro # G606331628
Mfr # 804233-PR-100
product price:  $29.99
/pk 100, $0.30/ea
X1 Tools 7/16-14 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 8PK X1E-FAS-NUT-LOC-3926x8
X1 Tools

7/16-14 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 8PK

Zoro # G522845278
Mfr # X1E-FAS-NUT-LOC-3926x8
product price:  $19.89
/pk 8, $2.49/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 10-32 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 120PK X1E-FAS-NUT-LOC-2122x120
X1 Tools

10-32 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 120PK

Zoro # G422855520
Mfr # X1E-FAS-NUT-LOC-2122x120
product price:  $28.49
/pk 120, $0.24/ea
X1 Tools 1/4-28 UHP Black-Oxide Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 15PK X1E-FAS-NUT-LOC-3212x15
X1 Tools

1/4-28 UHP Black-Oxide Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 15PK

Zoro # G722858269
Mfr # X1E-FAS-NUT-LOC-3212x15
product price:  $40.15
/pk 15, $2.68/ea
X1 Tools 1-14 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 200PK X1E-FAS-NUT-LOC-1050x200
X1 Tools

1-14 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 200PK

Zoro # G722844521
Mfr # X1E-FAS-NUT-LOC-1050x200
product price:  $1,722.99
/pk 200, $8.61/ea
X1 Tools 1/2-13 Performance Black-Corrosion-Resistant-Coated Steel Thin-Profile Nylon-Insert Locknuts, 250PK X1E-FAS-NUT-LOC-3624x250
X1 Tools

1/2-13 Performance Black-Corrosion-Resistant-Coated Steel Thin-Profile Nylon-Insert Locknuts, 250PK

Zoro # G822862692
Mfr # X1E-FAS-NUT-LOC-3624x250
product price:  $1,041.99
/pk 250, $4.17/ea
Lock Nuts (10,000+ items) - Page 248
  • First
  • Previous
  • 248
    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 ScrewsMachine ScrewsSocket Head Cap ScrewsLock WashersSelf-Tapping Screws
5/16-24 nutslock nut 5/16-18flanged locknut3/8-16 nuts stainless steel1/2" flange lock nut
nylon-insert locknuts1/4" locking nutn-10 lock nutnylon insert hex 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