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 25

Auveco Hex Flange Locknut Phosphate & Oil Grade 8 3/4in-10, 10PK 15180
Auveco

Hex Flange Locknut Phosphate & Oil Grade 8 3/4in-10, 10PK

Zoro # G424163333
Mfr # 15180
product price:  $30.39
/pk 10, $3.04/ea
X1 Tools 4-40 Hi Performance Brass Nylon-Insert Locknuts, 2PK X1E-FAS-NUT-LOC-2710x2
X1 Tools

4-40 Hi Performance Brass Nylon-Insert Locknuts, 2PK

Zoro # G322860549
Mfr # X1E-FAS-NUT-LOC-2710x2
product price:  $1.59
/pk 2, $0.80/ea
Sold in mult. of 6 for $9.54
X1 Tools M12 x 1.75 mm Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 500PK X1E-FAS-NUT-LOC-2161x500
X1 Tools

M12 x 1.75 mm Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 500PK

Zoro # G922849968
Mfr # X1E-FAS-NUT-LOC-2161x500
product price:  $773.99
/pk 500, $1.55/ea
X1 Tools M6 x 1 mm UHP Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 120PK X1E-FAS-NUT-LOC-1314x120
X1 Tools

M6 x 1 mm UHP Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 120PK

Zoro # G522846664
Mfr # X1E-FAS-NUT-LOC-1314x120
product price:  $619.99
/pk 120, $5.17/ea
X1 Tools M20 x 1.5 mm Ultra Hi Performance Zinc-Plated Steel Nylon-Insert Locknuts, 10PK X1E-FAS-NUT-LOC-1144x10
X1 Tools

M20 x 1.5 mm Ultra Hi Performance Zinc-Plated Steel Nylon-Insert Locknuts, 10PK

Zoro # G522844905
Mfr # X1E-FAS-NUT-LOC-1144x10
product price:  $176.99
/pk 10, $17.70/ea
X1 Tools M2.5 x 0.45 mm Black-Oxide C.R. 18-8 Stainless Steel Nylon-Insert Locknuts, 12PK X1E-FAS-NUT-LOC-2258x12
X1 Tools

M2.5 x 0.45 mm Black-Oxide C.R. 18-8 Stainless Steel Nylon-Insert Locknuts, 12PK

Zoro # G122852171
Mfr # X1E-FAS-NUT-LOC-2258x12
product price:  $22.19
/pk 12, $1.85/ea
X1 Tools M22 x 2.5 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 2PK X1E-FAS-NUT-LOC-1992x2
X1 Tools

M22 x 2.5 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 2PK

Zoro # G222864876
Mfr # X1E-FAS-NUT-LOC-1992x2
product price:  $10.29
/pk 2, $5.15/ea
Sold in mult. of 2 for $20.58
X1 Tools 1 1/2-6 Corrosion-Resistant 316 Stainless Steel Nylon-Insert Locknuts, 150PK X1E-FAS-NUT-LOC-2370x150
X1 Tools

1 1/2-6 Corrosion-Resistant 316 Stainless Steel Nylon-Insert Locknuts, 150PK

Zoro # G722850270
Mfr # X1E-FAS-NUT-LOC-2370x150
product price:  $13,941.99
/pk 150, $92.95/ea
X1 Tools 1 1/4-7 Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 120PK X1E-FAS-NUT-LOC-1631x120
X1 Tools

1 1/4-7 Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 120PK

Zoro # G222848517
Mfr # X1E-FAS-NUT-LOC-1631x120
product price:  $2,815.99
/pk 120, $23.47/ea
X1 Tools 1 1/4-12 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 12PK X1E-FAS-NUT-LOC-1060x12
X1 Tools

1 1/4-12 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 12PK

Zoro # G722849717
Mfr # X1E-FAS-NUT-LOC-1060x12
product price:  $476.99
/pk 12, $39.75/ea
X1 Tools 5/16-18 Corrosion-Resistant 316 Stainless Steel Nylon-Insert Locknuts, 25PK X1E-FAS-NUT-LOC-2328x25
X1 Tools

5/16-18 Corrosion-Resistant 316 Stainless Steel Nylon-Insert Locknuts, 25PK

Zoro # G222855843
Mfr # X1E-FAS-NUT-LOC-2328x25
product price:  $16.99
/pk 25, $0.68/ea
Disco Nylon Insert Lock Nut, 1/4"-28, Bright Zinc Plated 12777PK
Disco

Nylon Insert Lock Nut, 1/4"-28, Bright Zinc Plated

Zoro # G3655594
Mfr # 12777PK
product price:  $5.99
/ea
Sold in mult. of 2 for $11.98
Durastar Lock Nut, 3/8"-16, Stainless Steel, 5/16 in Ht SNT0605
Durastar

Lock Nut, 3/8"-16, Stainless Steel, 5/16 in Ht

Zoro # G3722447
Mfr # SNT0605
product price:  $1.15
/ea
Sold in mult. of 25 for $28.75
X1 Tools 3/4-16 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 2PK X1E-FAS-NUT-LOC-1040x2
X1 Tools

3/4-16 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 2PK

Zoro # G922853637
Mfr # X1E-FAS-NUT-LOC-1040x2
product price:  $12.69
/pk 2, $6.35/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 1/2-13 Grade 5 Titanium Nylon-Insert Locknuts, 10PK X1E-FAS-NUT-LOC-2526x10
X1 Tools

1/2-13 Grade 5 Titanium Nylon-Insert Locknuts, 10PK

Zoro # G322845195
Mfr # X1E-FAS-NUT-LOC-2526x10
product price:  $288.99
/pk 10, $28.90/ea
X1 Tools M8 x 1.25 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 150PK X1E-FAS-NUT-LOC-1978x150
X1 Tools

M8 x 1.25 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 150PK

Zoro # G422846184
Mfr # X1E-FAS-NUT-LOC-1978x150
product price:  $42.19
/pk 150, $0.28/ea
X1 Tools 5/8-18 Hi-Performance Black-Oxide Steel Nylon-Insert Locknuts, 4PK X1E-FAS-NUT-LOC-1734x4
X1 Tools

5/8-18 Hi-Performance Black-Oxide Steel Nylon-Insert Locknuts, 4PK

Zoro # G722847317
Mfr # X1E-FAS-NUT-LOC-1734x4
product price:  $9.79
/pk 4, $2.45/ea
Wiska Lock Nut, M12-1.50, Polyamide 10061780
Wiska

Lock Nut, M12-1.50, Polyamide

Zoro # G7897952
Mfr # 10061780
product price:  $0.17
/ea
Sold in mult. of 56 for $9.52
Auveco 1/4in-20 Hex Keps Lock Washer And Nut Zinc, 100PK 3496
Auveco

1/4in-20 Hex Keps Lock Washer And Nut Zinc, 100PK

Zoro # G624169517
Mfr # 3496
product price:  $9.89
/pk 100, $0.10/ea
X1 Tools 1 3/8-8 Ultra Hi Performance Grade 8 Steel Nylon-Insert Locknuts, 10PK X1E-FAS-NUT-LOC-1460x10
X1 Tools

1 3/8-8 Ultra Hi Performance Grade 8 Steel Nylon-Insert Locknuts, 10PK

Zoro # G522849771
Mfr # X1E-FAS-NUT-LOC-1460x10
product price:  $558.99
/pk 10, $55.90/ea
X1 Tools 2-12 Ultra Hi Performance Grade 8 Steel Nylon-Insert Locknuts, 50PK X1E-FAS-NUT-LOC-1476x50
X1 Tools

2-12 Ultra Hi Performance Grade 8 Steel Nylon-Insert Locknuts, 50PK

Zoro # G322856269
Mfr # X1E-FAS-NUT-LOC-1476x50
product price:  $4,786.99
/pk 50, $95.74/ea
X1 Tools 5/16-24 UHP Zinc-Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 15PK X1E-FAS-NUT-LOC-3110x15
X1 Tools

5/16-24 UHP Zinc-Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 15PK

Zoro # G522849641
Mfr # X1E-FAS-NUT-LOC-3110x15
product price:  $50.65
/pk 15, $3.38/ea
X1 Tools M36 x 4 mm Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 100PK X1E-FAS-NUT-LOC-1671x100
X1 Tools

M36 x 4 mm Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 100PK

Zoro # G722849854
Mfr # X1E-FAS-NUT-LOC-1671x100
product price:  $5,356.99
/pk 100, $53.57/ea
X1 Tools 7/8-9 Corrosion-Resistant 316 Stainless Steel Nylon-Insert Locknuts, 200PK X1E-FAS-NUT-LOC-2356x200
X1 Tools

7/8-9 Corrosion-Resistant 316 Stainless Steel Nylon-Insert Locknuts, 200PK

Zoro # G622867194
Mfr # X1E-FAS-NUT-LOC-2356x200
product price:  $2,416.99
/pk 200, $12.08/ea
X1 Tools 12-24 Black-Oxide C.R. 18-8 Stainless Steel Nylon-Insert Locknuts, 10PK X1E-FAS-NUT-LOC-2230x10
X1 Tools

12-24 Black-Oxide C.R. 18-8 Stainless Steel Nylon-Insert Locknuts, 10PK

Zoro # G722849373
Mfr # X1E-FAS-NUT-LOC-2230x10
product price:  $22.59
/pk 10, $2.26/ea
X1 Tools 1 1/4-7 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 400PK X1E-FAS-NUT-LOC-1970x400
X1 Tools

1 1/4-7 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 400PK

Zoro # G222865989
Mfr # X1E-FAS-NUT-LOC-1970x400
product price:  $9,236.99
/pk 400, $23.09/ea
X1 Tools M14 x 2 mm Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 20PK X1E-FAS-NUT-LOC-2163x20
X1 Tools

M14 x 2 mm Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 20PK

Zoro # G522851262
Mfr # X1E-FAS-NUT-LOC-2163x20
product price:  $110.99
/pk 20, $5.55/ea
X1 Tools 5/16-18 Black-Oxide C.R. 18-8 Stainless Steel Nylon-Insert Locknuts, 8PK X1E-FAS-NUT-LOC-2236x8
X1 Tools

5/16-18 Black-Oxide C.R. 18-8 Stainless Steel Nylon-Insert Locknuts, 8PK

Zoro # G422855452
Mfr # X1E-FAS-NUT-LOC-2236x8
product price:  $11.65
/pk 8, $1.46/ea
Sold in mult. of 2 for $23.30
X1 Tools 3/4-10 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 50PK X1E-FAS-NUT-LOC-3746x50
X1 Tools

3/4-10 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 50PK

Zoro # G122853635
Mfr # X1E-FAS-NUT-LOC-3746x50
product price:  $824.99
/pk 50, $16.50/ea
Boltsandnuts.Com Top Lock Lock Nut, M10-1.5, Class 10, Zinc Plated, 50 PK M10CPTN10Z-50
Boltsandnuts.Com

Top Lock Lock Nut, M10-1.5, Class 10, Zinc Plated, 50 PK

Zoro # G414494942
Mfr # M10CPTN10Z-50
product price:  $28.99
/pk 50, $0.58/ea
No Product Image Available
T&S Brass

Locking Nut

Zoro # G512120804
Mfr # 016663-45
product price:  $9.49
/ea
Sold in mult. of 2 for $18.98
X1 Tools 4-40 Black-Oxide Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 500PK X1E-FAS-NUT-LOC-3810x500
X1 Tools

4-40 Black-Oxide Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 500PK

Zoro # G722865885
Mfr # X1E-FAS-NUT-LOC-3810x500
product price:  $153.99
/pk 500, $0.31/ea
X1 Tools 1/2-13 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 250PK X1E-FAS-NUT-LOC-3442x250
X1 Tools

1/2-13 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 250PK

Zoro # G322856573
Mfr # X1E-FAS-NUT-LOC-3442x250
product price:  $94.55
/pk 250, $0.38/ea
X1 Tools M30 x 3.5 mm Ultra Hi Performance Zinc-Plated Steel Nylon-Insert Locknuts, 200PK X1E-FAS-NUT-LOC-1164x200
X1 Tools

M30 x 3.5 mm Ultra Hi Performance Zinc-Plated Steel Nylon-Insert Locknuts, 200PK

Zoro # G522846602
Mfr # X1E-FAS-NUT-LOC-1164x200
product price:  $5,036.99
/pk 200, $25.18/ea
Siemens Locknut MSP-3 7MH7723-1CR
Siemens

Locknut MSP-3

Zoro # G516050022
Mfr # 7MH7723-1CR
product price:  $86.55
/ea
Sold in mult. of 5 for $432.75
Lock Nuts (10,000+ items) - Page 25
  • First
  • Previous
  • 25
    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
nylon-insert locknuts1/2" flange lock nut5/16-24 nuts10mm nuts5/16-18 nylon locking nut
2 inch locknutlock nut 5/16-181/4" locking nutnylon insert hex nut3/8-16 nuts stainless steel

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