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
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 101

X1 Tools M6 x 1 mm Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 8PK X1E-FAS-NUT-LOC-3482x8
X1 Tools

M6 x 1 mm Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 8PK

Zoro # G122859347
Mfr # X1E-FAS-NUT-LOC-3482x8
product price: 
$20.99
/pk 8, $2.62/ea
Oxoxo 3/8-16 Serrated Flange Hex Lock Nuts Grade 8 Black Phosphate, 1000PK 511512
Oxoxo

3/8-16 Serrated Flange Hex Lock Nuts Grade 8 Black Phosphate, 1000PK

Zoro # G222682425
Mfr # 511512
product price: 
$378.99
/pk 1000, $0.38/ea
X1 Tools 3/8-24 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 100PK X1E-FAS-NUT-LOC-3924x100
X1 Tools

3/8-24 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 100PK

Zoro # G022855425
Mfr # X1E-FAS-NUT-LOC-3924x100
product price: 
$123.99
/pk 100, $1.24/ea
Newport Fasteners Nylon Insert Lock Nut, M48-5.00, Steel, Class 8, Zinc Plated, 15 PK 580993-BR-15
Newport Fasteners

Nylon Insert Lock Nut, M48-5.00, Steel, Class 8, Zinc Plated, 15 PK

Zoro # G606329649
Mfr # 580993-BR-15
product price: 
$608.99
/pk 15, $40.60/ea
X1 Tools 9/16-18 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 12PK X1E-FAS-NUT-LOC-1950x12
X1 Tools

9/16-18 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 12PK

Zoro # G622860362
Mfr # X1E-FAS-NUT-LOC-1950x12
product price: 
$17.69
/pk 12, $1.47/ea
X1 Tools 5/8-18 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 6PK X1E-FAS-NUT-LOC-3452x6
X1 Tools

5/8-18 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 6PK

Zoro # G122863085
Mfr # X1E-FAS-NUT-LOC-3452x6
product price: 
$5.69
/pk 6, $0.95/ea
Sold in mult. of 2 for $11.38
X1 Tools M12 x 1.75 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 25PK X1E-FAS-NUT-LOC-1982x25
X1 Tools

M12 x 1.75 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 25PK

Zoro # G422852673
Mfr # X1E-FAS-NUT-LOC-1982x25
product price: 
$22.39
/pk 25, $0.90/ea
X1 Tools 10-24 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 50PK X1E-FAS-NUT-LOC-3910x50
X1 Tools

10-24 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 50PK

Zoro # G122845517
Mfr # X1E-FAS-NUT-LOC-3910x50
product price: 
$43.65
/pk 50, $0.87/ea
X1 Tools 1/4-28 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 400PK X1E-FAS-NUT-LOC-1012x400
X1 Tools

1/4-28 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 400PK

Zoro # G722844583
Mfr # X1E-FAS-NUT-LOC-1012x400
product price: 
$191.99
/pk 400, $0.48/ea
X1 Tools 5/16-18 Ultra Hi Performance Black-Oxide Steel Nylon-Insert Locknuts, 8PK X1E-FAS-NUT-LOC-1214x8
X1 Tools

5/16-18 Ultra Hi Performance Black-Oxide Steel Nylon-Insert Locknuts, 8PK

Zoro # G322857952
Mfr # X1E-FAS-NUT-LOC-1214x8
product price: 
$10.29
/pk 8, $1.29/ea
Sold in mult. of 2 for $20.58
X1 Tools 3/8-24 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 400PK X1E-FAS-NUT-LOC-3020x400
X1 Tools

3/8-24 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 400PK

Zoro # G522858209
Mfr # X1E-FAS-NUT-LOC-3020x400
product price: 
$228.99
/pk 400, $0.57/ea
X1 Tools 5/8-11 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 10PK X1E-FAS-NUT-LOC-1952x10
X1 Tools

5/8-11 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 10PK

Zoro # G522845346
Mfr # X1E-FAS-NUT-LOC-1952x10
product price: 
$16.99
/pk 10, $1.70/ea
X1 Tools 1 1/8-7 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 250PK X1E-FAS-NUT-LOC-3758x250
X1 Tools

1 1/8-7 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 250PK

Zoro # G722852953
Mfr # X1E-FAS-NUT-LOC-3758x250
product price: 
$9,360.99
/pk 250, $37.44/ea
X1 Tools 3/8-24 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 150PK X1E-FAS-NUT-LOC-3924x150
X1 Tools

3/8-24 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 150PK

Zoro # G522858629
Mfr # X1E-FAS-NUT-LOC-3924x150
product price: 
$183.99
/pk 150, $1.23/ea
X1 Tools M16 x 2 mm Hi-Performance Yellow Zinc Plated Steel Nylon-Insert Locknuts, 75PK X1E-FAS-NUT-LOC-1526x75
X1 Tools

M16 x 2 mm Hi-Performance Yellow Zinc Plated Steel Nylon-Insert Locknuts, 75PK

Zoro # G422850730
Mfr # X1E-FAS-NUT-LOC-1526x75
product price: 
$206.99
/pk 75, $2.76/ea
X1 Tools M18 x 2.5 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 500PK X1E-FAS-NUT-LOC-1988x500
X1 Tools

M18 x 2.5 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 500PK

Zoro # G022856897
Mfr # X1E-FAS-NUT-LOC-1988x500
product price: 
$1,534.99
/pk 500, $3.07/ea
X1 Tools 3/8-24 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 6PK X1E-FAS-NUT-LOC-3730x6
X1 Tools

3/8-24 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 6PK

Zoro # G622859946
Mfr # X1E-FAS-NUT-LOC-3730x6
product price: 
$4.79
/pk 6, $0.80/ea
Sold in mult. of 2 for $9.58
X1 Tools 10-24 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 6PK X1E-FAS-NUT-LOC-2014x6
X1 Tools

10-24 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 6PK

Zoro # G922856775
Mfr # X1E-FAS-NUT-LOC-2014x6
product price: 
$29.15
/pk 6, $4.86/ea
X1 Tools M6 x 1 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 500PK X1E-FAS-NUT-LOC-1976x500
X1 Tools

M6 x 1 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 500PK

Zoro # G322852490
Mfr # X1E-FAS-NUT-LOC-1976x500
product price: 
$90.45
/pk 500, $0.18/ea
X1 Tools M6 x 1 mm Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 15PK X1E-FAS-NUT-LOC-3482x15
X1 Tools

M6 x 1 mm Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 15PK

Zoro # G922847834
Mfr # X1E-FAS-NUT-LOC-3482x15
product price: 
$35.35
/pk 15, $2.36/ea
X1 Tools 1/4-20 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 500PK X1E-FAS-NUT-LOC-1010x500
X1 Tools

1/4-20 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 500PK

Zoro # G322844266
Mfr # X1E-FAS-NUT-LOC-1010x500
product price: 
$228.99
/pk 500, $0.46/ea
X1 Tools 1/4-20 Black-Oxide C.R. 18-8 Stainless Steel Nylon-Insert Locknuts, 50PK X1E-FAS-NUT-LOC-2232x50
X1 Tools

1/4-20 Black-Oxide C.R. 18-8 Stainless Steel Nylon-Insert Locknuts, 50PK

Zoro # G922845403
Mfr # X1E-FAS-NUT-LOC-2232x50
product price: 
$34.89
/pk 50, $0.70/ea
X1 Tools 3/8-16 UHP Black-Oxide Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 10PK X1E-FAS-NUT-LOC-3218x10
X1 Tools

3/8-16 UHP Black-Oxide Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 10PK

Zoro # G822856943
Mfr # X1E-FAS-NUT-LOC-3218x10
product price: 
$21.19
/pk 10, $2.12/ea
X1 Tools 10-24 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 1000PK X1E-FAS-NUT-LOC-3716x1000
X1 Tools

10-24 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 1000PK

Zoro # G722863652
Mfr # X1E-FAS-NUT-LOC-3716x1000
product price: 
$213.99
/pk 1000, $0.21/ea
Oxoxo 5/16-18-2 Self Clinching Nut Zinc, 4000PK 228723
Oxoxo

5/16-18-2 Self Clinching Nut Zinc, 4000PK

Zoro # G222690932
Mfr # 228723
product price: 
$1,940.99
/pk 4000, $0.49/ea
X1 Tools M12 x 1.75 mm Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 4PK X1E-FAS-NUT-LOC-3488x4
X1 Tools

M12 x 1.75 mm Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 4PK

Zoro # G322850236
Mfr # X1E-FAS-NUT-LOC-3488x4
product price: 
$16.69
/pk 4, $4.17/ea
X1 Tools 7/8-14 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 100PK X1E-FAS-NUT-LOC-3036x100
X1 Tools

7/8-14 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 100PK

Zoro # G322857761
Mfr # X1E-FAS-NUT-LOC-3036x100
product price: 
$1,032.99
/pk 100, $10.33/ea
Oxoxo 5/16-18 Serrated Flange Hex Lock Nuts 18 8 Stainless Steel, 1000PK 319665
Oxoxo

5/16-18 Serrated Flange Hex Lock Nuts 18 8 Stainless Steel, 1000PK

Zoro # G722671271
Mfr # 319665
product price: 
$370.99
/pk 1000, $0.37/ea
Oxoxo 7/16-14 N1610 Nylon Insert Hex Locknut NE Hex Standard Height Grade 8 Zinc Yellow, 500PK 277925
Oxoxo

7/16-14 N1610 Nylon Insert Hex Locknut NE Hex Standard Height Grade 8 Zinc Yellow, 500PK

Zoro # G522661267
Mfr # 277925
product price: 
$147.99
/pk 500, $0.30/ea
Oxoxo 5/16-18 Flex Type Lock Nut Full Height 18-8 Stainless Steel, 125PK 457631
Oxoxo

5/16-18 Flex Type Lock Nut Full Height 18-8 Stainless Steel, 125PK

Zoro # G222696798
Mfr # 457631
product price: 
$484.99
/pk 125, $3.88/ea
Oxoxo M8-1.25 Metric Class 8 K Lock Nut Zinc, 1500PK 374400
Oxoxo

M8-1.25 Metric Class 8 K Lock Nut Zinc, 1500PK

Zoro # G222693360
Mfr # 374400
product price: 
$310.99
/pk 1500, $0.21/ea
Zoro Select Lock Nut, Stainless Steel, 1/8", PK10 FLNIX025-010P
Zoro Select

Lock Nut, Stainless Steel, 1/8", PK10

Zoro # G622963674
Mfr # FLNIX025-010P
product price: 
$25.79
/pk 10, $2.58/ea
Newport Fasteners Nylon Insert Lock Nut, 1/4"-20, 316 Stainless Steel, Not Graded, 7000 PK 737373-BR-7000
Newport Fasteners

Nylon Insert Lock Nut, 1/4"-20, 316 Stainless Steel, Not Graded, 7000 PK

Zoro # G406330005
Mfr # 737373-BR-7000
product price: 
$1,536.99
/pk 7000, $0.22/ea
X1 Tools 1 1/2-12 Ultra Hi Performance Black-Oxide Steel Nylon-Insert Locknuts, 20PK X1E-FAS-NUT-LOC-1262x20
X1 Tools

1 1/2-12 Ultra Hi Performance Black-Oxide Steel Nylon-Insert Locknuts, 20PK

Zoro # G722848550
Mfr # X1E-FAS-NUT-LOC-1262x20
product price: 
$1,334.99
/pk 20, $66.75/ea
X1 Tools 1/2-20 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 400PK X1E-FAS-NUT-LOC-3028x400
X1 Tools

1/2-20 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 400PK

Zoro # G822863200
Mfr # X1E-FAS-NUT-LOC-3028x400
product price: 
$1,009.99
/pk 400, $2.52/ea
X1 Tools 5/8-11 Ultra Hi Performance Black-Oxide Steel Nylon-Insert Locknuts, 400PK X1E-FAS-NUT-LOC-1234x400
X1 Tools

5/8-11 Ultra Hi Performance Black-Oxide Steel Nylon-Insert Locknuts, 400PK

Zoro # G122846798
Mfr # X1E-FAS-NUT-LOC-1234x400
product price: 
$1,487.99
/pk 400, $3.72/ea
Lock Nuts (10,000+ items) - Page 101
  • First
  • Previous
  • 101
    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 NutsCap Nuts & Acorn NutsWing NutsGeneral Washers
Hex Head Cap ScrewsMachine ScrewsSocket Head Cap ScrewsLock WashersSelf-Tapping Screws
distorted lock nut10mm nuts5/16-18 nylon locking nutnylon insert hex nut4" lock nuts
1" lock nuts3/8-16 ss nuts3/4 lock nuts1/2" flange lock nut1/4 npt locknuts

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