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 246

X1 Tools 7/8-14 Hi Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 25PK X1E-FAS-NUT-LOC-3318x25
X1 Tools

7/8-14 Hi Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 25PK

Zoro # G822867628
Mfr # X1E-FAS-NUT-LOC-3318x25
product price:  $328.99
/pk 25, $13.16/ea
X1 Tools 7/8-14 Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 10PK X1E-FAS-NUT-LOC-1627x10
X1 Tools

7/8-14 Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 10PK

Zoro # G622862113
Mfr # X1E-FAS-NUT-LOC-1627x10
product price:  $49.35
/pk 10, $4.94/ea
X1 Tools 3/8-16 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 15PK X1E-FAS-NUT-LOC-2022x15
X1 Tools

3/8-16 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 15PK

Zoro # G122865836
Mfr # X1E-FAS-NUT-LOC-2022x15
product price:  $70.49
/pk 15, $4.70/ea
X1 Tools 1-14 Hi Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 100PK X1E-FAS-NUT-LOC-3322x100
X1 Tools

1-14 Hi Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 100PK

Zoro # G322865117
Mfr # X1E-FAS-NUT-LOC-3322x100
product price:  $1,388.99
/pk 100, $13.89/ea
X1 Tools 3/8-24 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 15PK X1E-FAS-NUT-LOC-3924x15
X1 Tools

3/8-24 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 15PK

Zoro # G122848624
Mfr # X1E-FAS-NUT-LOC-3924x15
product price:  $23.29
/pk 15, $1.55/ea
X1 Tools 5/16-18 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 50PK X1E-FAS-NUT-LOC-3918x50
X1 Tools

5/16-18 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 50PK

Zoro # G022852868
Mfr # X1E-FAS-NUT-LOC-3918x50
product price:  $47.69
/pk 50, $0.95/ea
X1 Tools 7/8-14 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 75PK X1E-FAS-NUT-LOC-1962x75
X1 Tools

7/8-14 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 75PK

Zoro # G922862189
Mfr # X1E-FAS-NUT-LOC-1962x75
product price:  $260.99
/pk 75, $3.48/ea
X1 Tools 9/16-12 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 50PK X1E-FAS-NUT-LOC-1948x50
X1 Tools

9/16-12 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 50PK

Zoro # G122854557
Mfr # X1E-FAS-NUT-LOC-1948x50
product price:  $51.95
/pk 50, $1.04/ea
X1 Tools M8 x 1.25 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 75PK X1E-FAS-NUT-LOC-1978x75
X1 Tools

M8 x 1.25 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 75PK

Zoro # G422857036
Mfr # X1E-FAS-NUT-LOC-1978x75
product price:  $22.99
/pk 75, $0.31/ea
X1 Tools 1/2-20 Corrosion-Resistant 316 Stainless Steel Nylon-Insert Locknuts, 75PK X1E-FAS-NUT-LOC-2342x75
X1 Tools

1/2-20 Corrosion-Resistant 316 Stainless Steel Nylon-Insert Locknuts, 75PK

Zoro # G922857536
Mfr # X1E-FAS-NUT-LOC-2342x75
product price:  $177.99
/pk 75, $2.37/ea
X1 Tools 1 1/2-6 Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 75PK X1E-FAS-NUT-LOC-1632x75
X1 Tools

1 1/2-6 Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 75PK

Zoro # G022856965
Mfr # X1E-FAS-NUT-LOC-1632x75
product price:  $3,210.99
/pk 75, $42.81/ea
X1 Tools 6-32 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 400PK X1E-FAS-NUT-LOC-3712x400
X1 Tools

6-32 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 400PK

Zoro # G022863918
Mfr # X1E-FAS-NUT-LOC-3712x400
product price:  $93.29
/pk 400, $0.23/ea
Newport Fasteners Nylon Insert Lock Nut, #10-32, Steel, Grade A, Zinc Plated, 5000 PK 491124-BR-5000
Newport Fasteners

Nylon Insert Lock Nut, #10-32, Steel, Grade A, Zinc Plated, 5000 PK

Zoro # G006327559
Mfr # 491124-BR-5000
product price:  $273.99
/pk 5000, $0.05/ea
X1 Tools M4 x 0.7 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 150PK X1E-FAS-NUT-LOC-1972x150
X1 Tools

M4 x 0.7 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 150PK

Zoro # G522866518
Mfr # X1E-FAS-NUT-LOC-1972x150
product price:  $23.39
/pk 150, $0.16/ea
X1 Tools 1/2-13 Black-Oxide Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 4PK X1E-FAS-NUT-LOC-3828x4
X1 Tools

1/2-13 Black-Oxide Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 4PK

Zoro # G522848286
Mfr # X1E-FAS-NUT-LOC-3828x4
product price:  $16.59
/pk 4, $4.15/ea
X1 Tools 4-40 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 25PK X1E-FAS-NUT-LOC-3412x25
X1 Tools

4-40 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 25PK

Zoro # G722863720
Mfr # X1E-FAS-NUT-LOC-3412x25
product price:  $10.39
/pk 25, $0.42/ea
X1 Tools 5/16-24 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 20PK X1E-FAS-NUT-LOC-3432x20
X1 Tools

5/16-24 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 20PK

Zoro # G422851331
Mfr # X1E-FAS-NUT-LOC-3432x20
product price:  $4.29
/pk 20, $0.21/ea
Sold in mult. of 3 for $12.87
Oxoxo 1/2-13 N1610 Nylon Insert Hex Locknut NE Hex Standard Height Grade 8 Zinc Yellow, 100PK 277943
Oxoxo

1/2-13 N1610 Nylon Insert Hex Locknut NE Hex Standard Height Grade 8 Zinc Yellow, 100PK

Zoro # G422667710
Mfr # 277943
product price:  $33.65
/pk 100, $0.34/ea
Zoro Select Lock Nut, Steel, 1/2", PK2 FLHNFI075CAD-002P
Zoro Select

Lock Nut, Steel, 1/2", PK2

Zoro # G522964245
Mfr # FLHNFI075CAD-002P
product price:  $17.49
/pk 2, $8.75/ea
X1 Tools 3/8-24 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 10PK X1E-FAS-NUT-LOC-1020x10
X1 Tools

3/8-24 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 10PK

Zoro # G122844510
Mfr # X1E-FAS-NUT-LOC-1020x10
product price:  $12.99
/pk 10, $1.30/ea
Sold in mult. of 2 for $25.98
X1 Tools 5/16-24 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 10PK X1E-FAS-NUT-LOC-2128x10
X1 Tools

5/16-24 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 10PK

Zoro # G122849935
Mfr # X1E-FAS-NUT-LOC-2128x10
product price:  $5.29
/pk 10, $0.53/ea
Sold in mult. of 2 for $10.58
X1 Tools M18 x 2.5 mm Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 75PK X1E-FAS-NUT-LOC-3494x75
X1 Tools

M18 x 2.5 mm Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 75PK

Zoro # G122859323
Mfr # X1E-FAS-NUT-LOC-3494x75
product price:  $1,155.99
/pk 75, $15.41/ea
X1 Tools 1/2-13 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 2PK X1E-FAS-NUT-LOC-3442x2
X1 Tools

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

Zoro # G522854058
Mfr # X1E-FAS-NUT-LOC-3442x2
product price:  $1.29
/pk 2, $0.65/ea
X1 Tools 10-32 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 100PK X1E-FAS-NUT-LOC-3422x100
X1 Tools

10-32 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 100PK

Zoro # G722857859
Mfr # X1E-FAS-NUT-LOC-3422x100
product price:  $13.39
/pk 100, $0.13/ea
Newport Fasteners Nylon Insert Lock Nut, #10-24, Steel, Zinc Plated, 5000 PK NB305013B-5000
Newport Fasteners

Nylon Insert Lock Nut, #10-24, Steel, Zinc Plated, 5000 PK

Zoro # G506331803
Mfr # NB305013B-5000
product price:  $222.99
/pk 5000, $0.04/ea
X1 Tools 10-32 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 15PK X1E-FAS-NUT-LOC-3422x15
X1 Tools

10-32 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 15PK

Zoro # G322851707
Mfr # X1E-FAS-NUT-LOC-3422x15
product price:  $1.99
/pk 15, $0.13/ea
Sold in mult. of 5 for $9.95
X1 Tools 4-40 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 150PK X1E-FAS-NUT-LOC-3710x150
X1 Tools

4-40 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 150PK

Zoro # G122863238
Mfr # X1E-FAS-NUT-LOC-3710x150
product price:  $38.29
/pk 150, $0.26/ea
X1 Tools 5-40 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 10PK X1E-FAS-NUT-LOC-1916x10
X1 Tools

5-40 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 10PK

Zoro # G922864923
Mfr # X1E-FAS-NUT-LOC-1916x10
product price:  $1.59
/pk 10, $0.16/ea
X1 Tools 10-24 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 120PK X1E-FAS-NUT-LOC-3716x120
X1 Tools

10-24 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 120PK

Zoro # G222854587
Mfr # X1E-FAS-NUT-LOC-3716x120
product price:  $32.49
/pk 120, $0.27/ea
Newport Fasteners Serrated Lock Nut, #10-32, Steel, Case Hardened, Zinc Plated, 100 PK 692414-PR-100
Newport Fasteners

Serrated Lock Nut, #10-32, Steel, Case Hardened, Zinc Plated, 100 PK

Zoro # G406308479
Mfr # 692414-PR-100
product price:  $42.55
/pk 100, $0.43/ea
X1 Tools 7/16-20 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 200PK X1E-FAS-NUT-LOC-3928x200
X1 Tools

7/16-20 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 200PK

Zoro # G122864310
Mfr # X1E-FAS-NUT-LOC-3928x200
product price:  $349.99
/pk 200, $1.75/ea
X1 Tools 3/8-16 UHP Black-Oxide Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 400PK X1E-FAS-NUT-LOC-3218x400
X1 Tools

3/8-16 UHP Black-Oxide Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 400PK

Zoro # G322860723
Mfr # X1E-FAS-NUT-LOC-3218x400
product price:  $601.99
/pk 400, $1.50/ea
X1 Tools 8-32 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 75PK X1E-FAS-NUT-LOC-1920x75
X1 Tools

8-32 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 75PK

Zoro # G822845831
Mfr # X1E-FAS-NUT-LOC-1920x75
product price:  $12.39
/pk 75, $0.17/ea
X1 Tools 1/4-28 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts X1E-FAS-NUT-LOC-3428x1
X1 Tools

1/4-28 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts

Zoro # G522849276
Mfr # X1E-FAS-NUT-LOC-3428x1
product price:  $0.61
/ea
X1 Tools 4-40 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 2PK X1E-FAS-NUT-LOC-3710x2
X1 Tools

4-40 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 2PK

Zoro # G022848656
Mfr # X1E-FAS-NUT-LOC-3710x2
product price:  $1.15
/pk 2, $0.58/ea
Sold in mult. of 9 for $10.35
X1 Tools M12 x 1.75 mm Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 250PK X1E-FAS-NUT-LOC-3488x250
X1 Tools

M12 x 1.75 mm Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 250PK

Zoro # G022866124
Mfr # X1E-FAS-NUT-LOC-3488x250
product price:  $649.99
/pk 250, $2.60/ea
Lock Nuts (10,000+ items) - Page 246
  • First
  • Previous
  • 246
    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
5/16-24 nutslock nut 5/16-18flanged locknut3/8-16 nuts stainless steel1/2" flange lock nut
nylon-insert locknuts1/4" locking nutn-10 lock nutnylon insert hex 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