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 19

X1 Tools 10-24 Grade 5 Titanium Nylon-Insert Locknuts, 250PK X1E-FAS-NUT-LOC-2516x250
X1 Tools

10-24 Grade 5 Titanium Nylon-Insert Locknuts, 250PK

Zoro # G522864828
Mfr # X1E-FAS-NUT-LOC-2516x250
product price: 
$5,314.99
/pk 250, $21.26/ea
X1 Tools 7/16-20 Hi-Performance Black-Oxide Steel Nylon-Insert Locknuts, 75PK X1E-FAS-NUT-LOC-1724x75
X1 Tools

7/16-20 Hi-Performance Black-Oxide Steel Nylon-Insert Locknuts, 75PK

Zoro # G522848491
Mfr # X1E-FAS-NUT-LOC-1724x75
product price: 
$46.69
/pk 75, $0.62/ea
X1 Tools 1-14 Ultra Hi Performance Grade 8 Steel Nylon-Insert Locknuts, 20PK X1E-FAS-NUT-LOC-1448x20
X1 Tools

1-14 Ultra Hi Performance Grade 8 Steel Nylon-Insert Locknuts, 20PK

Zoro # G522854621
Mfr # X1E-FAS-NUT-LOC-1448x20
product price: 
$132.99
/pk 20, $6.65/ea
Newport Fasteners Nylon Insert Lock Nut, #5-40, 316 Stainless Steel, Not Graded, 5000 PK NB310009B-5000
Newport Fasteners

Nylon Insert Lock Nut, #5-40, 316 Stainless Steel, Not Graded, 5000 PK

Zoro # G006332645
Mfr # NB310009B-5000
product price: 
$287.99
/pk 5000, $0.06/ea
X1 Tools 5/16-18 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 10PK X1E-FAS-NUT-LOC-3918x10
X1 Tools

5/16-18 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 10PK

Zoro # G622849916
Mfr # X1E-FAS-NUT-LOC-3918x10
product price: 
$14.19
/pk 10, $1.42/ea
Phoenix Contact A-INL-M25-P-LG Counter nut material: PA 1417661
Phoenix Contact

A-INL-M25-P-LG Counter nut material: PA

Zoro # G315309086
Mfr # 1417661
product price: 
$0.58
/ea
Sold in mult. of 15 for $8.70
X1 Tools 1/4-20 Black-Oxide C.R. 18-8 Stainless Steel Nylon-Insert Locknuts, 250PK X1E-FAS-NUT-LOC-2232x250
X1 Tools

1/4-20 Black-Oxide C.R. 18-8 Stainless Steel Nylon-Insert Locknuts, 250PK

Zoro # G722852229
Mfr # X1E-FAS-NUT-LOC-2232x250
product price: 
$148.99
/pk 250, $0.60/ea
Boltsandnuts.Com Top Lock Lock Nut, M10-1.5, Class 10, Zinc Plated, 25 PK M10FPTN10Z-25
Boltsandnuts.Com

Top Lock Lock Nut, M10-1.5, Class 10, Zinc Plated, 25 PK

Zoro # G314493892
Mfr # M10FPTN10Z-25
product price: 
$17.89
/pk 25, $0.72/ea
Newport Fasteners Serrated Lock Nut, 3/8"-16, Steel, Case Hardened, Zinc Plated, 0.23 in Ht, 2000 PK 781252-BR-2000
Newport Fasteners

Serrated Lock Nut, 3/8"-16, Steel, Case Hardened, Zinc Plated, 0.23 in Ht, 2000 PK

Zoro # G406308882
Mfr # 781252-BR-2000
product price: 
$300.99
/pk 2000, $0.15/ea
X1 Tools 1 1/4-7 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 50PK X1E-FAS-NUT-LOC-1970x50
X1 Tools

1 1/4-7 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 50PK

Zoro # G922865067
Mfr # X1E-FAS-NUT-LOC-1970x50
product price: 
$1,156.99
/pk 50, $23.14/ea
X1 Tools 5/16-18 Black-Oxide Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 4PK X1E-FAS-NUT-LOC-3822x4
X1 Tools

5/16-18 Black-Oxide Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 4PK

Zoro # G022850048
Mfr # X1E-FAS-NUT-LOC-3822x4
product price: 
$4.79
/pk 4, $1.20/ea
Sold in mult. of 2 for $9.58
X1 Tools 1/4-28 Black-Oxide C.R. 18-8 Stainless Steel Nylon-Insert Locknuts X1E-FAS-NUT-LOC-2234x1
X1 Tools

1/4-28 Black-Oxide C.R. 18-8 Stainless Steel Nylon-Insert Locknuts

Zoro # G922846455
Mfr # X1E-FAS-NUT-LOC-2234x1
product price: 
$2.49
/ea
Sold in mult. of 4 for $9.96
Whittet-Higgins 18 Threads per Inch, 2-11/16 in. Outside Diameter PN-10
Whittet-Higgins

18 Threads per Inch, 2-11/16 in. Outside Diameter

Zoro # G212509831
Mfr # PN-10
product price: 
$16.29
/ea
X1 Tools 3/4-16 Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 120PK X1E-FAS-NUT-LOC-1625x120
X1 Tools

3/4-16 Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 120PK

Zoro # G322861638
Mfr # X1E-FAS-NUT-LOC-1625x120
product price: 
$212.99
/pk 120, $1.77/ea
X1 Tools M10 x 1.5 mm UHP Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 150PK X1E-FAS-NUT-LOC-1318x150
X1 Tools

M10 x 1.5 mm UHP Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 150PK

Zoro # G522848354
Mfr # X1E-FAS-NUT-LOC-1318x150
product price: 
$999.99
/pk 150, $6.67/ea
No Product Image Available
Triple-Lok

Fitting, Triple-Lok, Bulkhead Locknut

Zoro # G516273094
Mfr # 6 WLN-S
product price: 
$1.29
/ea
Sold in mult. of 8 for $10.32
X1 Tools 6-32 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 50PK X1E-FAS-NUT-LOC-1918x50
X1 Tools

6-32 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 50PK

Zoro # G522848132
Mfr # X1E-FAS-NUT-LOC-1918x50
product price: 
$5.59
/pk 50, $0.11/ea
Sold in mult. of 2 for $11.18
X1 Tools 1/4-20 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 1000PK X1E-FAS-NUT-LOC-3720x1000
X1 Tools

1/4-20 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 1000PK

Zoro # G122863276
Mfr # X1E-FAS-NUT-LOC-3720x1000
product price: 
$267.99
/pk 1000, $0.27/ea
Skf Bearing, Lock Nut, ST, N, 4-15/16 OD N-19
Skf

Bearing, Lock Nut, ST, N, 4-15/16 OD

Zoro # G710040119
Mfr # N-19
product price: 
$192.99
/ea
X1 Tools 7/16-14 Hi-Performance Black-Oxide Steel Nylon-Insert Locknuts, 400PK X1E-FAS-NUT-LOC-1722x400
X1 Tools

7/16-14 Hi-Performance Black-Oxide Steel Nylon-Insert Locknuts, 400PK

Zoro # G022845129
Mfr # X1E-FAS-NUT-LOC-1722x400
product price: 
$214.99
/pk 400, $0.54/ea
X1 Tools 3/4-10 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 75PK X1E-FAS-NUT-LOC-2139x75
X1 Tools

3/4-10 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 75PK

Zoro # G322865872
Mfr # X1E-FAS-NUT-LOC-2139x75
product price: 
$355.99
/pk 75, $4.75/ea
Midwest Fastener Lock Nut, 5/16"-18, Nylon, Zinc Plated 03650
Midwest Fastener

Lock Nut, 5/16"-18, Nylon, Zinc Plated

Zoro # G006902169
Mfr # 03650
product price: 
$18.65
/ea
X1 Tools 1-14 UHP Black-Oxide Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 250PK X1E-FAS-NUT-LOC-3236x250
X1 Tools

1-14 UHP Black-Oxide Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 250PK

Zoro # G822863972
Mfr # X1E-FAS-NUT-LOC-3236x250
product price: 
$4,251.99
/pk 250, $17.01/ea
X1 Tools M36 x 3 mm Ultra Hi Performance Zinc-Plated Steel Nylon-Insert Locknuts, 1000PK X1E-FAS-NUT-LOC-1168x1000
X1 Tools

M36 x 3 mm Ultra Hi Performance Zinc-Plated Steel Nylon-Insert Locknuts, 1000PK

Zoro # G422853519
Mfr # X1E-FAS-NUT-LOC-1168x1000
product price: 
$93,383.99
/pk 1000, $93.38/ea
Newport Fasteners Nylon Insert Lock Nut, #10-24, Steel, Zinc Plated, 2000 PK 765401
Newport Fasteners

Nylon Insert Lock Nut, #10-24, Steel, Zinc Plated, 2000 PK

Zoro # G006329959
Mfr # 765401
product price: 
$253.99
/pk 2000, $0.13/ea
X1 Tools M4 x 0.7 mm Corrosion-Resistant 316 Stainless Steel Nylon-Insert Locknuts, 100PK X1E-FAS-NUT-LOC-2376x100
X1 Tools

M4 x 0.7 mm Corrosion-Resistant 316 Stainless Steel Nylon-Insert Locknuts, 100PK

Zoro # G222850091
Mfr # X1E-FAS-NUT-LOC-2376x100
product price: 
$40.49
/pk 100, $0.40/ea
X1 Tools 3-48 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 10PK X1E-FAS-NUT-LOC-1912x10
X1 Tools

3-48 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 10PK

Zoro # G022865653
Mfr # X1E-FAS-NUT-LOC-1912x10
product price: 
$2.49
/pk 10, $0.25/ea
Sold in mult. of 4 for $9.96
X1 Tools 2-12 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 15PK X1E-FAS-NUT-LOC-1076x15
X1 Tools

2-12 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 15PK

Zoro # G022844283
Mfr # X1E-FAS-NUT-LOC-1076x15
product price: 
$2,208.99
/pk 15, $147.27/ea
X1 Tools M20 x 2 mm Ultra Hi Performance Zinc-Plated Steel Nylon-Insert Locknuts, 10PK X1E-FAS-NUT-LOC-1146x10
X1 Tools

M20 x 2 mm Ultra Hi Performance Zinc-Plated Steel Nylon-Insert Locknuts, 10PK

Zoro # G522850043
Mfr # X1E-FAS-NUT-LOC-1146x10
product price: 
$342.99
/pk 10, $34.30/ea
X1 Tools M24 x 3 mm Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 8PK X1E-FAS-NUT-LOC-2171x8
X1 Tools

M24 x 3 mm Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 8PK

Zoro # G422857296
Mfr # X1E-FAS-NUT-LOC-2171x8
product price: 
$229.99
/pk 8, $28.75/ea
X1 Tools M18 x 2.5 mm Corrosion-Resistant 316 Stainless Steel Nylon-Insert Locknuts, 4PK X1E-FAS-NUT-LOC-2392x4
X1 Tools

M18 x 2.5 mm Corrosion-Resistant 316 Stainless Steel Nylon-Insert Locknuts, 4PK

Zoro # G722857972
Mfr # X1E-FAS-NUT-LOC-2392x4
product price: 
$119.99
/pk 4, $30.00/ea
Boltsandnuts.Com External Tooth Lock Washer Lock Nut, M4-0.7, Class 8, Zinc Plated, 100 PK M4CNKE8Z-100
Boltsandnuts.Com

External Tooth Lock Washer Lock Nut, M4-0.7, Class 8, Zinc Plated, 100 PK

Zoro # G914497733
Mfr # M4CNKE8Z-100
product price: 
$13.69
/pk 100, $0.14/ea
X1 Tools 9/16-12 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 12PK X1E-FAS-NUT-LOC-2135x12
X1 Tools

9/16-12 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 12PK

Zoro # G522849054
Mfr # X1E-FAS-NUT-LOC-2135x12
product price: 
$60.15
/pk 12, $5.01/ea
X1 Tools M16 x 2 mm Corrosion-Resistant 316 Stainless Steel Nylon-Insert Locknuts, 8PK X1E-FAS-NUT-LOC-2390x8
X1 Tools

M16 x 2 mm Corrosion-Resistant 316 Stainless Steel Nylon-Insert Locknuts, 8PK

Zoro # G322857532
Mfr # X1E-FAS-NUT-LOC-2390x8
product price: 
$66.99
/pk 8, $8.37/ea
X1 Tools M24 x 2 mm Ultra Hi Performance Zinc-Plated Steel Nylon-Insert Locknuts, 1000PK X1E-FAS-NUT-LOC-1156x1000
X1 Tools

M24 x 2 mm Ultra Hi Performance Zinc-Plated Steel Nylon-Insert Locknuts, 1000PK

Zoro # G422851232
Mfr # X1E-FAS-NUT-LOC-1156x1000
product price: 
$30,206.99
/pk 1000, $30.21/ea
X1 Tools 1/2-13 Lightweight 6061 Aluminum Nylon-Insert Locknuts, 50PK X1E-FAS-NUT-LOC-2622x50
X1 Tools

1/2-13 Lightweight 6061 Aluminum Nylon-Insert Locknuts, 50PK

Zoro # G622865367
Mfr # X1E-FAS-NUT-LOC-2622x50
product price: 
$95.65
/pk 50, $1.91/ea
Lock Nuts (10,000+ items) - Page 19
  • First
  • Previous
  • 19
    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 ScrewsSocket Head Cap ScrewsMachine 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