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
  • Promo Codes
  • Contact Us
Added to Cart
Skip to Main Content
FREE Shipping on orders over $50 after you . Restrictions Apply
Zoro Homepage
Close icon
Clipboard Icon Clipboard Icon Quick Order
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
Search Feedback

Lock Nuts (10,000+ items) - Page 184

X1 Tools 7/8-14 UHP Black-Oxide Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 6PK X1E-FAS-NUT-LOC-3234x6
X1 Tools

7/8-14 UHP Black-Oxide Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 6PK

Zoro # G122846415
Mfr # X1E-FAS-NUT-LOC-3234x6
product price:  $76.45
/pk 6, $12.74/ea
X1 Tools 1/2-13 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 12PK X1E-FAS-NUT-LOC-3442x12
X1 Tools

1/2-13 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 12PK

Zoro # G822864726
Mfr # X1E-FAS-NUT-LOC-3442x12
product price:  $5.29
/pk 12, $0.44/ea
X1 Tools 1/2-13 Black-Oxide Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 25PK X1E-FAS-NUT-LOC-3828x25
X1 Tools

1/2-13 Black-Oxide Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 25PK

Zoro # G822865587
Mfr # X1E-FAS-NUT-LOC-3828x25
product price:  $74.85
/pk 25, $2.99/ea
No Product Image Available
Zoro Select

Lock Nut, Steel, 9/64", PK25

Zoro # G422962952
Mfr # FLHNFI025CAD-025P
product price:  $16.39
/pk 25, $0.66/ea
X1 Tools 7/16-14 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 500PK X1E-FAS-NUT-LOC-3438x500
X1 Tools

7/16-14 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 500PK

Zoro # G122849379
Mfr # X1E-FAS-NUT-LOC-3438x500
product price:  $120.99
/pk 500, $0.24/ea
X1 Tools M4 x 0.7 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 12PK X1E-FAS-NUT-LOC-1972x12
X1 Tools

M4 x 0.7 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 12PK

Zoro # G222855058
Mfr # X1E-FAS-NUT-LOC-1972x12
product price:  $2.19
/pk 12, $0.18/ea
X1 Tools 1 1/8-7 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 500PK X1E-FAS-NUT-LOC-3758x500
X1 Tools

1 1/8-7 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 500PK

Zoro # G322861980
Mfr # X1E-FAS-NUT-LOC-3758x500
product price:  $18,437.99
/pk 500, $36.88/ea
X1 Tools 6-32 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 25PK X1E-FAS-NUT-LOC-3712x25
X1 Tools

6-32 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 25PK

Zoro # G722863539
Mfr # X1E-FAS-NUT-LOC-3712x25
product price:  $10.95
/pk 25, $0.44/ea
X1 Tools 8-32 Black-Oxide Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 20PK X1E-FAS-NUT-LOC-3814x20
X1 Tools

8-32 Black-Oxide Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 20PK

Zoro # G522859947
Mfr # X1E-FAS-NUT-LOC-3814x20
product price:  $15.59
/pk 20, $0.78/ea
X1 Tools 3/4-16 Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 6PK X1E-FAS-NUT-LOC-1625x6
X1 Tools

3/4-16 Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 6PK

Zoro # G922849876
Mfr # X1E-FAS-NUT-LOC-1625x6
product price:  $17.49
/pk 6, $2.91/ea
X1 Tools 5/8-11 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 25PK X1E-FAS-NUT-LOC-1952x25
X1 Tools

5/8-11 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 25PK

Zoro # G822860179
Mfr # X1E-FAS-NUT-LOC-1952x25
product price:  $39.19
/pk 25, $1.57/ea
X1 Tools 5/8-18 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 4PK X1E-FAS-NUT-LOC-2138x4
X1 Tools

5/8-18 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 4PK

Zoro # G922867610
Mfr # X1E-FAS-NUT-LOC-2138x4
product price:  $19.85
/pk 4, $4.96/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 M18 x 2.5 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 250PK X1E-FAS-NUT-LOC-1988x250
X1 Tools

M18 x 2.5 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 250PK

Zoro # G022849578
Mfr # X1E-FAS-NUT-LOC-1988x250
product price:  $831.99
/pk 250, $3.33/ea
Newport Fasteners Nylon Insert Lock Nut, #4-48, 18-8 Stainless Steel, Not Graded, 100 PK 755094-PR-100
Newport Fasteners

Nylon Insert Lock Nut, #4-48, 18-8 Stainless Steel, Not Graded, 100 PK

Zoro # G106329941
Mfr # 755094-PR-100
product price:  $40.55
/pk 100, $0.41/ea
Newport Fasteners Nylon Insert Lock Nut, #10-32, Steel, Zinc Plated, 100 PK NB305115P-100
Newport Fasteners

Nylon Insert Lock Nut, #10-32, Steel, Zinc Plated, 100 PK

Zoro # G006331570
Mfr # NB305115P-100
product price:  $38.69
/pk 100, $0.39/ea
X1 Tools 3/8-24 UHP Black-Oxide Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 15PK X1E-FAS-NUT-LOC-3220x15
X1 Tools

3/8-24 UHP Black-Oxide Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 15PK

Zoro # G122848754
Mfr # X1E-FAS-NUT-LOC-3220x15
product price:  $32.29
/pk 15, $2.15/ea
X1 Tools M8 x 1.25 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 400PK X1E-FAS-NUT-LOC-1978x400
X1 Tools

M8 x 1.25 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 400PK

Zoro # G122861616
Mfr # X1E-FAS-NUT-LOC-1978x400
product price:  $100.99
/pk 400, $0.25/ea
X1 Tools 1/4-28 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 6PK X1E-FAS-NUT-LOC-1930x6
X1 Tools

1/4-28 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 6PK

Zoro # G622851049
Mfr # X1E-FAS-NUT-LOC-1930x6
product price:  $1.35
/pk 6, $0.23/ea
Newport Fasteners Nylon Insert Lock Nut, 1/2"-13, 18-8 Stainless Steel, Not Graded, 100 PK 931998-PR-100
Newport Fasteners

Nylon Insert Lock Nut, 1/2"-13, 18-8 Stainless Steel, Not Graded, 100 PK

Zoro # G906331755
Mfr # 931998-PR-100
product price:  $106.99
/pk 100, $1.07/ea
X1 Tools M5 x 0.8 mm Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 15PK X1E-FAS-NUT-LOC-3480x15
X1 Tools

M5 x 0.8 mm Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 15PK

Zoro # G022845143
Mfr # X1E-FAS-NUT-LOC-3480x15
product price:  $16.99
/pk 15, $1.13/ea
Oxoxo 4-40-2 Self Clinching Nut Zinc, 10000PK 103396
Oxoxo

4-40-2 Self Clinching Nut Zinc, 10000PK

Zoro # G822659797
Mfr # 103396
product price:  $1,271.99
/pk 10000, $0.13/ea
Zoro Select Lock Nut, #10-32, 18-8 Stainless Steel, Not Graded, 250 PK 11NXL188
Zoro Select

Lock Nut, #10-32, 18-8 Stainless Steel, Not Graded, 250 PK

Zoro # G2454521
Mfr # 11NXL188
product price:  $207.99
/pk 250, $0.83/ea
X1 Tools 3/8-24 Ultra Hi Performance Black-Oxide Steel Nylon-Insert Locknuts, 150PK X1E-FAS-NUT-LOC-1220x150
X1 Tools

3/8-24 Ultra Hi Performance Black-Oxide Steel Nylon-Insert Locknuts, 150PK

Zoro # G422846948
Mfr # X1E-FAS-NUT-LOC-1220x150
product price:  $123.99
/pk 150, $0.83/ea
X1 Tools M5 x 0.8 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 10PK X1E-FAS-NUT-LOC-1974x10
X1 Tools

M5 x 0.8 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 10PK

Zoro # G422857647
Mfr # X1E-FAS-NUT-LOC-1974x10
product price:  $2.15
/pk 10, $0.22/ea
X1 Tools 3/8-16 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 1000PK X1E-FAS-NUT-LOC-1018x1000
X1 Tools

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

Zoro # G322844211
Mfr # X1E-FAS-NUT-LOC-1018x1000
product price:  $642.99
/pk 1000, $0.64/ea
X1 Tools 1/2-20 UHP Black-Oxide Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 250PK X1E-FAS-NUT-LOC-3226x250
X1 Tools

1/2-20 UHP Black-Oxide Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 250PK

Zoro # G222855850
Mfr # X1E-FAS-NUT-LOC-3226x250
product price:  $836.99
/pk 250, $3.35/ea
X1 Tools 10-32 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 10PK X1E-FAS-NUT-LOC-3422x10
X1 Tools

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

Zoro # G922866743
Mfr # X1E-FAS-NUT-LOC-3422x10
product price:  $1.49
/pk 10, $0.15/ea
X1 Tools 1 1/4-7 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 8PK X1E-FAS-NUT-LOC-3468x8
X1 Tools

1 1/4-7 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 8PK

Zoro # G622848063
Mfr # X1E-FAS-NUT-LOC-3468x8
product price:  $117.99
/pk 8, $14.75/ea
X1 Tools 9/16-18 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 20PK X1E-FAS-NUT-LOC-3740x20
X1 Tools

9/16-18 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 20PK

Zoro # G822845664
Mfr # X1E-FAS-NUT-LOC-3740x20
product price:  $1,026.99
/pk 20, $51.35/ea
X1 Tools 1/2-20 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts X1E-FAS-NUT-LOC-3028x1
X1 Tools

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

Zoro # G522856564
Mfr # X1E-FAS-NUT-LOC-3028x1
product price:  $3.95
/ea
X1 Tools 7/16-14 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 10PK X1E-FAS-NUT-LOC-1022x10
X1 Tools

7/16-14 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 10PK

Zoro # G222844229
Mfr # X1E-FAS-NUT-LOC-1022x10
product price:  $17.39
/pk 10, $1.74/ea
X1 Tools 7/8-14 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 12PK X1E-FAS-NUT-LOC-3752x12
X1 Tools

7/8-14 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 12PK

Zoro # G622866845
Mfr # X1E-FAS-NUT-LOC-3752x12
product price:  $434.99
/pk 12, $36.25/ea
X1 Tools 10-32 Black-Oxide Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 400PK X1E-FAS-NUT-LOC-3818x400
X1 Tools

10-32 Black-Oxide Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 400PK

Zoro # G222859001
Mfr # X1E-FAS-NUT-LOC-3818x400
product price:  $212.99
/pk 400, $0.53/ea
Oxoxo 1/2-20 Stover Alternative Lock Nut Automation Style With Flange Grade G Black Phosphate, 700PK 249429
Oxoxo

1/2-20 Stover Alternative Lock Nut Automation Style With Flange Grade G Black Phosphate, 700PK

Zoro # G522660956
Mfr # 249429
product price:  $579.99
/pk 700, $0.83/ea
X1 Tools 5/8-18 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 100PK X1E-FAS-NUT-LOC-1954x100
X1 Tools

5/8-18 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 100PK

Zoro # G522857325
Mfr # X1E-FAS-NUT-LOC-1954x100
product price:  $125.99
/pk 100, $1.26/ea
Lock Nuts (10,000+ items) - Page 184
  • First
  • Previous
  • 184
    of 277 pages
  • Next
  • Last

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 NutsHex Head Cap Screws
General WashersSocket Head Cap ScrewsMachine ScrewsLock WashersSelf-Tapping Screws
1/2-13 nylon lock nut1/4-20 stainless steel nut3/8-16 nuts stainless steel5/16-18 stainless steel boltnylon insert flange nut
flanged locknut5/8-18 flange nut3/8" flange nutsdistorted thread lock nutnylon-insert locknuts

Sign Up & 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
  • Promo Codes
  • Sitemap
  • Track My Order

Services

  • Customer Service
  • FAQs
  • Net 30 Terms
  • Reseller Program
  • Sell on Zoro
  • Participate in Research

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