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 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 215

X1 Tools 3/4-16 Hi Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 15PK X1E-FAS-NUT-LOC-3316x15
X1 Tools

3/4-16 Hi Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 15PK

Zoro # G522859350
Mfr # X1E-FAS-NUT-LOC-3316x15
product price: 
$41.79
/pk of 15, $2.79/ea
X1 Tools 3/4-16 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 1000PK X1E-FAS-NUT-LOC-1040x1000
X1 Tools

3/4-16 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 1000PK

Zoro # G422850501
Mfr # X1E-FAS-NUT-LOC-1040x1000
product price: 
$4,650.99
/pk of 1000, $4.65/ea
X1 Tools 6-32 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 12PK X1E-FAS-NUT-LOC-2117x12
X1 Tools

6-32 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 12PK

Zoro # G722852533
Mfr # X1E-FAS-NUT-LOC-2117x12
product price: 
$2.45
/pk of 12, $0.20/ea
Sold in mult. of 4 pks for $9.80
X1 Tools 7/16-14 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 25PK X1E-FAS-NUT-LOC-3926x25
X1 Tools

7/16-14 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 25PK

Zoro # G722858443
Mfr # X1E-FAS-NUT-LOC-3926x25
product price: 
$51.19
/pk of 25, $2.05/ea
X1 Tools 5/8-18 Ultra Hi Performance Black-Oxide Steel Nylon-Insert Locknuts, 200PK X1E-FAS-NUT-LOC-1236x200
X1 Tools

5/8-18 Ultra Hi Performance Black-Oxide Steel Nylon-Insert Locknuts, 200PK

Zoro # G622854422
Mfr # X1E-FAS-NUT-LOC-1236x200
product price: 
$567.99
/pk of 200, $2.84/ea
X1 Tools 1/4-20 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 250PK X1E-FAS-NUT-LOC-3914x250
X1 Tools

1/4-20 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 250PK

Zoro # G022856415
Mfr # X1E-FAS-NUT-LOC-3914x250
product price: 
$159.99
/pk of 250, $0.64/ea
X1 Tools 3/4-16 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 6PK X1E-FAS-NUT-LOC-3034x6
X1 Tools

3/4-16 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 6PK

Zoro # G422848959
Mfr # X1E-FAS-NUT-LOC-3034x6
product price: 
$49.15
/pk of 6, $8.19/ea
X1 Tools 5/8-18 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 120PK X1E-FAS-NUT-LOC-1036x120
X1 Tools

5/8-18 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 120PK

Zoro # G822848474
Mfr # X1E-FAS-NUT-LOC-1036x120
product price: 
$348.99
/pk of 120, $2.91/ea
X1 Tools 5/16-24 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 4PK X1E-FAS-NUT-LOC-1016x4
X1 Tools

5/16-24 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 4PK

Zoro # G122844503
Mfr # X1E-FAS-NUT-LOC-1016x4
product price: 
$3.75
/pk of 4, $0.94/ea
Sold in mult. of 3 pks for $11.25
X1 Tools 5/16-24 UHP Black-Oxide Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 12PK X1E-FAS-NUT-LOC-3216x12
X1 Tools

5/16-24 UHP Black-Oxide Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 12PK

Zoro # G522851347
Mfr # X1E-FAS-NUT-LOC-3216x12
product price: 
$39.15
/pk of 12, $3.26/ea
X1 Tools 5/8-18 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 250PK X1E-FAS-NUT-LOC-3744x250
X1 Tools

5/8-18 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 250PK

Zoro # G222848227
Mfr # X1E-FAS-NUT-LOC-3744x250
product price: 
$1,656.99
/pk of 250, $6.63/ea
Oxoxo 5/16-24 Nylon Insert Hex Locknut NE Light Hex Standard Height Grade 5 Zinc, 2500PK 538656
Oxoxo

5/16-24 Nylon Insert Hex Locknut NE Light Hex Standard Height Grade 5 Zinc, 2500PK

Zoro # G922668033
Mfr # 538656
product price: 
$468.99
/pk of 2500, $0.19/ea
X1 Tools 7/16-20 UHP Black-Oxide Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 75PK X1E-FAS-NUT-LOC-3222x75
X1 Tools

7/16-20 UHP Black-Oxide Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 75PK

Zoro # G222866382
Mfr # X1E-FAS-NUT-LOC-3222x75
product price: 
$172.99
/pk of 75, $2.31/ea
X1 Tools 1 1/8-7 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 75PK X1E-FAS-NUT-LOC-3466x75
X1 Tools

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

Zoro # G922850346
Mfr # X1E-FAS-NUT-LOC-3466x75
product price: 
$791.99
/pk of 75, $10.56/ea
X1 Tools 1 1/4-7 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 500PK X1E-FAS-NUT-LOC-3468x500
X1 Tools

1 1/4-7 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 500PK

Zoro # G822855847
Mfr # X1E-FAS-NUT-LOC-3468x500
product price: 
$9,114.99
/pk of 500, $18.23/ea
Zoro Select Lock Nut, 3/8"-16, Nylon, Zinc Plated, 0.335 in Ht, 400 PK 37NSH
Zoro Select

Lock Nut, 3/8"-16, Nylon, Zinc Plated, 0.335 in Ht, 400 PK

Zoro # G2450680
Mfr # 37NSH
product price: 
$137.99
/pk of 400, $0.34/ea
X1 Tools 1-8 Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 500PK X1E-FAS-NUT-LOC-1628x500
X1 Tools

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

Zoro # G322865056
Mfr # X1E-FAS-NUT-LOC-1628x500
product price: 
$3,729.99
/pk of 500, $7.46/ea
X1 Tools 5/16-18 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Ins. Locknuts, 12PK X1E-FAS-NUT-LOC-2020x12
X1 Tools

5/16-18 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Ins. Locknuts, 12PK

Zoro # G522847661
Mfr # X1E-FAS-NUT-LOC-2020x12
product price: 
$55.65
/pk of 12, $4.64/ea
X1 Tools 3/4-16 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 100PK X1E-FAS-NUT-LOC-3748x100
X1 Tools

3/4-16 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 100PK

Zoro # G422852192
Mfr # X1E-FAS-NUT-LOC-3748x100
product price: 
$2,962.99
/pk of 100, $29.63/ea
X1 Tools 1/4-28 Ultra Hi Performance Black-Oxide Steel Nylon-Insert Locknuts, 1000PK X1E-FAS-NUT-LOC-1212x1000
X1 Tools

1/4-28 Ultra Hi Performance Black-Oxide Steel Nylon-Insert Locknuts, 1000PK

Zoro # G322852520
Mfr # X1E-FAS-NUT-LOC-1212x1000
product price: 
$445.99
/pk of 1000, $0.45/ea
X1 Tools 7/8-14 Hi Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 120PK X1E-FAS-NUT-LOC-3318x120
X1 Tools

7/8-14 Hi Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 120PK

Zoro # G122864860
Mfr # X1E-FAS-NUT-LOC-3318x120
product price: 
$1,513.99
/pk of 120, $12.62/ea
X1 Tools 1-14 Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 15PK X1E-FAS-NUT-LOC-1629x15
X1 Tools

1-14 Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 15PK

Zoro # G822865891
Mfr # X1E-FAS-NUT-LOC-1629x15
product price: 
$94.15
/pk of 15, $6.28/ea
X1 Tools 3/4-10 Hi Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts X1E-FAS-NUT-LOC-3314x1
X1 Tools

3/4-10 Hi Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts

Zoro # G422865840
Mfr # X1E-FAS-NUT-LOC-3314x1
product price: 
$15.15
/ea
X1 Tools 7/16-14 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 8PK X1E-FAS-NUT-LOC-3022x8
X1 Tools

7/16-14 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 8PK

Zoro # G522850494
Mfr # X1E-FAS-NUT-LOC-3022x8
product price: 
$11.99
/pk of 8, $1.50/ea
X1 Tools 1 1/4-7 Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 100PK X1E-FAS-NUT-LOC-1631x100
X1 Tools

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

Zoro # G222849781
Mfr # X1E-FAS-NUT-LOC-1631x100
product price: 
$2,361.99
/pk of 100, $23.62/ea
X1 Tools 5/16-18 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 120PK X1E-FAS-NUT-LOC-3014x120
X1 Tools

5/16-18 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 120PK

Zoro # G222866191
Mfr # X1E-FAS-NUT-LOC-3014x120
product price: 
$47.99
/pk of 120, $0.40/ea
X1 Tools 7/16-20 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 50PK X1E-FAS-NUT-LOC-3928x50
X1 Tools

7/16-20 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 50PK

Zoro # G822855830
Mfr # X1E-FAS-NUT-LOC-3928x50
product price: 
$95.99
/pk of 50, $1.92/ea
X1 Tools 3/8-16 Ultra Hi Performance Black-Oxide Steel Nylon-Insert Locknuts, 2PK X1E-FAS-NUT-LOC-1218x2
X1 Tools

3/8-16 Ultra Hi Performance Black-Oxide Steel Nylon-Insert Locknuts, 2PK

Zoro # G922848640
Mfr # X1E-FAS-NUT-LOC-1218x2
product price: 
$2.49
/pk of 2, $1.25/ea
Sold in mult. of 4 pks for $9.96
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
Sold in mult. of 3 for $13.05
X1 Tools 1/2-13 Black-Oxide Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 12PK X1E-FAS-NUT-LOC-3828x12
X1 Tools

1/2-13 Black-Oxide Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 12PK

Zoro # G622854507
Mfr # X1E-FAS-NUT-LOC-3828x12
product price: 
$39.65
/pk of 12, $3.30/ea
X1 Tools 8-32 Black-Oxide Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 150PK X1E-FAS-NUT-LOC-3814x150
X1 Tools

8-32 Black-Oxide Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 150PK

Zoro # G622857423
Mfr # X1E-FAS-NUT-LOC-3814x150
product price: 
$73.15
/pk of 150, $0.49/ea
X1 Tools 10-24 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 100PK X1E-FAS-NUT-LOC-3910x100
X1 Tools

10-24 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 100PK

Zoro # G922854849
Mfr # X1E-FAS-NUT-LOC-3910x100
product price: 
$80.49
/pk of 100, $0.80/ea
Oxoxo 3/8-16 Serrated Flange Hex Lock Nuts Case Hardened HR15N 78/90 Zinc And Bake, 1000PK 190781
Oxoxo

3/8-16 Serrated Flange Hex Lock Nuts Case Hardened HR15N 78/90 Zinc And Bake, 1000PK

Zoro # G922688925
Mfr # 190781
product price: 
$79.45
/pk of 1000, $0.08/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 of 120, $1.27/ea
X1 Tools M14 x 2 mm Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 400PK X1E-FAS-NUT-LOC-3490x400
X1 Tools

M14 x 2 mm Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 400PK

Zoro # G322853060
Mfr # X1E-FAS-NUT-LOC-3490x400
product price: 
$1,375.99
/pk of 400, $3.44/ea
Oxoxo 5-40 K Lock Nut Zinc and Bake, 5000PK 109828
Oxoxo

5-40 K Lock Nut Zinc and Bake, 5000PK

Zoro # G922659055
Mfr # 109828
product price: 
$258.99
/pk of 5000, $0.05/ea
Lock Nuts (10,000+ items) - Page 215
  • First
  • Previous
  • 215
    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 ScrewsMachine ScrewsSocket Head Cap ScrewsLock WashersSelf-Tapping Screws
1/2" flange lock nut3/8-16 nuts stainless steellock nut 5/16-181/4" locking nutnylon insert hex nut
5/16-24 nutsnylon-insert locknutsn-10 lock nut5/16-18 nylon locking 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