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 236

X1 Tools 7/16-20 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 100PK X1E-FAS-NUT-LOC-3440x100
X1 Tools

7/16-20 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 100PK

Zoro # G222861868
Mfr # X1E-FAS-NUT-LOC-3440x100
product price:  $32.99
/pk 100, $0.33/ea
X1 Tools 4-40 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 15PK X1E-FAS-NUT-LOC-2114x15
X1 Tools

4-40 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 15PK

Zoro # G922857642
Mfr # X1E-FAS-NUT-LOC-2114x15
product price:  $2.55
/pk 15, $0.17/ea
Sold in mult. of 4 for $10.20
X1 Tools 5/8-18 Hi Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 1000PK X1E-FAS-NUT-LOC-3312x1000
X1 Tools

5/8-18 Hi Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 1000PK

Zoro # G322865698
Mfr # X1E-FAS-NUT-LOC-3312x1000
product price:  $8,712.99
/pk 1000, $8.71/ea
X1 Tools 1 1/2-12 Ultra Hi Performance Black-Oxide Steel Nylon-Insert Locknuts, 6PK X1E-FAS-NUT-LOC-1262x6
X1 Tools

1 1/2-12 Ultra Hi Performance Black-Oxide Steel Nylon-Insert Locknuts, 6PK

Zoro # G522847463
Mfr # X1E-FAS-NUT-LOC-1262x6
product price:  $335.99
/pk 6, $56.00/ea
X1 Tools 8-32 Performance Black-Corrosion-Resistant-Coated Steel Thin-Profile Nylon-Insert Locknuts, 1000PK X1E-FAS-NUT-LOC-3612x1000
X1 Tools

8-32 Performance Black-Corrosion-Resistant-Coated Steel Thin-Profile Nylon-Insert Locknuts, 1000PK

Zoro # G122849775
Mfr # X1E-FAS-NUT-LOC-3612x1000
product price:  $3,301.99
/pk 1000, $3.30/ea
X1 Tools 1/4-20 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 50PK X1E-FAS-NUT-LOC-3010x50
X1 Tools

1/4-20 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 50PK

Zoro # G222858790
Mfr # X1E-FAS-NUT-LOC-3010x50
product price:  $15.99
/pk 50, $0.32/ea
X1 Tools 3/4-16 UHP Black-Oxide Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 75PK X1E-FAS-NUT-LOC-3232x75
X1 Tools

3/4-16 UHP Black-Oxide Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 75PK

Zoro # G722847102
Mfr # X1E-FAS-NUT-LOC-3232x75
product price:  $555.99
/pk 75, $7.41/ea
X1 Tools 3/8-16 Black-Oxide C.R. 18-8 Stainless Steel Nylon-Insert Locknuts, 150PK X1E-FAS-NUT-LOC-2240x150
X1 Tools

3/8-16 Black-Oxide C.R. 18-8 Stainless Steel Nylon-Insert Locknuts, 150PK

Zoro # G422853991
Mfr # X1E-FAS-NUT-LOC-2240x150
product price:  $228.99
/pk 150, $1.53/ea
X1 Tools 1-14 Hi Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 50PK X1E-FAS-NUT-LOC-3322x50
X1 Tools

1-14 Hi Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 50PK

Zoro # G322856559
Mfr # X1E-FAS-NUT-LOC-3322x50
product price:  $704.99
/pk 50, $14.10/ea
X1 Tools 3/8-16 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 15PK X1E-FAS-NUT-LOC-3018x15
X1 Tools

3/8-16 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 15PK

Zoro # G122864020
Mfr # X1E-FAS-NUT-LOC-3018x15
product price:  $12.25
/pk 15, $0.82/ea
Sold in mult. of 2 for $24.50
X1 Tools 1/4-20 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 1000PK X1E-FAS-NUT-LOC-3426x1000
X1 Tools

1/4-20 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 1000PK

Zoro # G022860979
Mfr # X1E-FAS-NUT-LOC-3426x1000
product price:  $122.99
/pk 1000, $0.12/ea
X1 Tools 8-32 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 75PK X1E-FAS-NUT-LOC-2012x75
X1 Tools

8-32 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 75PK

Zoro # G922858816
Mfr # X1E-FAS-NUT-LOC-2012x75
product price:  $266.99
/pk 75, $3.56/ea
X1 Tools 3/8-24 Black-Oxide Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 8PK X1E-FAS-NUT-LOC-3826x8
X1 Tools

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

Zoro # G922855013
Mfr # X1E-FAS-NUT-LOC-3826x8
product price:  $14.39
/pk 8, $1.80/ea
X1 Tools 5/8-18 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 120PK X1E-FAS-NUT-LOC-3744x120
X1 Tools

5/8-18 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 120PK

Zoro # G722856463
Mfr # X1E-FAS-NUT-LOC-3744x120
product price:  $812.99
/pk 120, $6.77/ea
X1 Tools 8-32 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 6PK X1E-FAS-NUT-LOC-3714x6
X1 Tools

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

Zoro # G322854708
Mfr # X1E-FAS-NUT-LOC-3714x6
product price:  $1.79
/pk 6, $0.30/ea
Sold in mult. of 6 for $10.74
X1 Tools 9/16-18 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 4PK X1E-FAS-NUT-LOC-3740x4
X1 Tools

9/16-18 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 4PK

Zoro # G722865403
Mfr # X1E-FAS-NUT-LOC-3740x4
product price:  $214.99
/pk 4, $53.75/ea
X1 Tools 9/16-18 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 250PK X1E-FAS-NUT-LOC-3740x250
X1 Tools

9/16-18 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 250PK

Zoro # G722858382
Mfr # X1E-FAS-NUT-LOC-3740x250
product price:  $12,106.99
/pk 250, $48.43/ea
X1 Tools 10-32 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 4PK X1E-FAS-NUT-LOC-3718x4
X1 Tools

10-32 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 4PK

Zoro # G822845329
Mfr # X1E-FAS-NUT-LOC-3718x4
product price:  $1.59
/pk 4, $0.40/ea
Sold in mult. of 6 for $9.54
X1 Tools 1-14 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 10PK X1E-FAS-NUT-LOC-1050x10
X1 Tools

1-14 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 10PK

Zoro # G522844547
Mfr # X1E-FAS-NUT-LOC-1050x10
product price:  $77.59
/pk 10, $7.76/ea
Heico-Lock 2-Piece Wedge Lock Nut, M12-1.75, Steel, Class 10, Zinc-Coated, 10 59/100 mm Ht, 50 PK HLMG-12/10
Heico-Lock

2-Piece Wedge Lock Nut, M12-1.75, Steel, Class 10, Zinc-Coated, 10 59/100 mm Ht, 50 PK

Zoro # G211807402
Mfr # HLMG-12/10
product price:  $101.99
/pk 50, $2.04/ea
X1 Tools 10-32 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 120PK X1E-FAS-NUT-LOC-3718x120
X1 Tools

10-32 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 120PK

Zoro # G222856499
Mfr # X1E-FAS-NUT-LOC-3718x120
product price:  $32.49
/pk 120, $0.27/ea
Newport Fasteners Nylon Insert Lock Nut, 7/16"-14, Steel, Grade A, Zinc Plated, 100 PK 890875-PR-100
Newport Fasteners

Nylon Insert Lock Nut, 7/16"-14, Steel, Grade A, Zinc Plated, 100 PK

Zoro # G506329893
Mfr # 890875-PR-100
product price:  $56.45
/pk 100, $0.56/ea
X1 Tools 6-32 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 1000PK X1E-FAS-NUT-LOC-2117x1000
X1 Tools

6-32 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 1000PK

Zoro # G822866324
Mfr # X1E-FAS-NUT-LOC-2117x1000
product price:  $131.99
/pk 1000, $0.13/ea
X1 Tools 3/8-16 Ultra Hi Performance Black-Oxide Steel Nylon-Insert Locknuts, 120PK X1E-FAS-NUT-LOC-1218x120
X1 Tools

3/8-16 Ultra Hi Performance Black-Oxide Steel Nylon-Insert Locknuts, 120PK

Zoro # G722855077
Mfr # X1E-FAS-NUT-LOC-1218x120
product price:  $103.99
/pk 120, $0.87/ea
X1 Tools 10-24 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts X1E-FAS-NUT-LOC-3716x1
X1 Tools

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

Zoro # G922860376
Mfr # X1E-FAS-NUT-LOC-3716x1
product price:  $0.74
/ea
Sold in mult. of 13 for $9.62
Msi Products 1-1/2in INDUSTRIAL 150lb 316 Stainless Steel Locknut A3240624
Msi Products

1-1/2in INDUSTRIAL 150lb 316 Stainless Steel Locknut

Zoro # G115322421
Mfr # A3240624
product price:  $26.19
/ea
X1 Tools 3/8-24 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 25PK X1E-FAS-NUT-LOC-3020x25
X1 Tools

3/8-24 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 25PK

Zoro # G922849630
Mfr # X1E-FAS-NUT-LOC-3020x25
product price:  $19.69
/pk 25, $0.79/ea
X1 Tools 3/8-16 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 20PK X1E-FAS-NUT-LOC-2022x20
X1 Tools

3/8-16 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 20PK

Zoro # G622857591
Mfr # X1E-FAS-NUT-LOC-2022x20
product price:  $91.25
/pk 20, $4.56/ea
Zoro Select External Tooth K-Lock Lock Nut, #6-32, Steel, Zinc Plated, 0.102 in Ht, 5000 PK 0604NK
Zoro Select

External Tooth K-Lock Lock Nut, #6-32, Steel, Zinc Plated, 0.102 in Ht, 5000 PK

Zoro # G2446611
Mfr # 0604NK
product price:  $185.99
/pk 5000, $0.04/ea
X1 Tools 5/16-24 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 15PK X1E-FAS-NUT-LOC-1934x15
X1 Tools

5/16-24 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 15PK

Zoro # G522855819
Mfr # X1E-FAS-NUT-LOC-1934x15
product price:  $3.29
/pk 15, $0.22/ea
Sold in mult. of 3 for $9.87
X1 Tools 3/4-16 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts X1E-FAS-NUT-LOC-1040x1
X1 Tools

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

Zoro # G522844479
Mfr # X1E-FAS-NUT-LOC-1040x1
product price:  $5.29
/ea
Sold in mult. of 2 for $10.58
X1 Tools 3/4-16 Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 400PK X1E-FAS-NUT-LOC-1625x400
X1 Tools

3/4-16 Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 400PK

Zoro # G722853257
Mfr # X1E-FAS-NUT-LOC-1625x400
product price:  $783.99
/pk 400, $1.96/ea
X1 Tools 7/16-20 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 10PK X1E-FAS-NUT-LOC-3734x10
X1 Tools

7/16-20 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 10PK

Zoro # G222850107
Mfr # X1E-FAS-NUT-LOC-3734x10
product price:  $23.39
/pk 10, $2.34/ea
X1 Tools 1 1/8-7 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 400PK X1E-FAS-NUT-LOC-3758x400
X1 Tools

1 1/8-7 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 400PK

Zoro # G522860370
Mfr # X1E-FAS-NUT-LOC-3758x400
product price:  $14,855.99
/pk 400, $37.14/ea
X1 Tools 5/8-11 Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 6PK X1E-FAS-NUT-LOC-1622x6
X1 Tools

5/8-11 Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 6PK

Zoro # G122847696
Mfr # X1E-FAS-NUT-LOC-1622x6
product price:  $14.15
/pk 6, $2.36/ea
Morton Stainless Steel Knurled Locknut, 5/8in-11 Thread Size, 1-3/8in Diameter, 1/2in Height KN-62SS
Morton

Stainless Steel Knurled Locknut, 5/8in-11 Thread Size, 1-3/8in Diameter, 1/2in Height

Zoro # G715543868
Mfr # KN-62SS
product price:  $10.99
/ea
Sold in mult. of 2 for $21.98
Lock Nuts (10,000+ items) - Page 236
  • First
  • Previous
  • 236
    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
1/4" locking nut5/16-24 nutsnylon insert hex nut1/2" flange lock nutn-10 lock nut
nylon-insert locknuts5/16-18 nylon locking nut10mm nuts2 inch locknutlock nut 5/16-18

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