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 181

X1 Tools 1/2-20 Black-Oxide C.R. 18-8 Stainless Steel Nylon-Insert Locknuts, 25PK X1E-FAS-NUT-LOC-2250x25
X1 Tools

1/2-20 Black-Oxide C.R. 18-8 Stainless Steel Nylon-Insert Locknuts, 25PK

Zoro # G122865447
Mfr # X1E-FAS-NUT-LOC-2250x25
product price:  $154.99
/pk 25, $6.20/ea
X1 Tools 5/8-18 Hi Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 75PK X1E-FAS-NUT-LOC-3312x75
X1 Tools

5/8-18 Hi Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 75PK

Zoro # G322853886
Mfr # X1E-FAS-NUT-LOC-3312x75
product price:  $632.99
/pk 75, $8.44/ea
X1 Tools 3/8-24 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 200PK X1E-FAS-NUT-LOC-3730x200
X1 Tools

3/8-24 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 200PK

Zoro # G522852238
Mfr # X1E-FAS-NUT-LOC-3730x200
product price:  $118.99
/pk 200, $0.59/ea
X1 Tools 7/8-14 Hi Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 120PK X1E-FAS-NUT-LOC-3318x120
X1 Tools

7/8-14 Hi Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 120PK

Zoro # G122864860
Mfr # X1E-FAS-NUT-LOC-3318x120
product price:  $1,513.99
/pk 120, $12.62/ea
X1 Tools 1/2-13 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 150PK X1E-FAS-NUT-LOC-2024x150
X1 Tools

1/2-13 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 150PK

Zoro # G022852172
Mfr # X1E-FAS-NUT-LOC-2024x150
product price:  $712.99
/pk 150, $4.75/ea
X1 Tools 9/16-12 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 25PK X1E-FAS-NUT-LOC-3446x25
X1 Tools

9/16-12 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 25PK

Zoro # G122845296
Mfr # X1E-FAS-NUT-LOC-3446x25
product price:  $19.35
/pk 25, $0.77/ea
X1 Tools 3/4-16 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 120PK X1E-FAS-NUT-LOC-3034x120
X1 Tools

3/4-16 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 120PK

Zoro # G622850752
Mfr # X1E-FAS-NUT-LOC-3034x120
product price:  $804.99
/pk 120, $6.71/ea
X1 Tools 5/8-18 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 4PK X1E-FAS-NUT-LOC-1954x4
X1 Tools

5/8-18 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 4PK

Zoro # G322856214
Mfr # X1E-FAS-NUT-LOC-1954x4
product price:  $6.29
/pk 4, $1.57/ea
X1 Tools 3/8-24 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts X1E-FAS-NUT-LOC-3730x1
X1 Tools

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

Zoro # G022848090
Mfr # X1E-FAS-NUT-LOC-3730x1
product price:  $1.19
/ea
X1 Tools 1/4-20 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 4PK X1E-FAS-NUT-LOC-1010x4
X1 Tools

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

Zoro # G722844613
Mfr # X1E-FAS-NUT-LOC-1010x4
product price:  $2.89
/pk 4, $0.72/ea
X1 Tools 9/16-18 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 25PK X1E-FAS-NUT-LOC-2136x25
X1 Tools

9/16-18 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 25PK

Zoro # G222852804
Mfr # X1E-FAS-NUT-LOC-2136x25
product price:  $126.99
/pk 25, $5.08/ea
No Product Image Available
Zoro Select

Lock Nut, Steel, 1/16", PK25

Zoro # G522964672
Mfr # FLJNFI-10CAD-025P
product price:  $15.59
/pk 25, $0.62/ea
X1 Tools 7/8-14 UHP Black-Oxide Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 20PK X1E-FAS-NUT-LOC-3234x20
X1 Tools

7/8-14 UHP Black-Oxide Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 20PK

Zoro # G522861087
Mfr # X1E-FAS-NUT-LOC-3234x20
product price:  $235.99
/pk 20, $11.80/ea
X1 Tools 3/4-10 Hi Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 1000PK X1E-FAS-NUT-LOC-3314x1000
X1 Tools

3/4-10 Hi Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 1000PK

Zoro # G022864489
Mfr # X1E-FAS-NUT-LOC-3314x1000
product price:  $9,635.99
/pk 1000, $9.64/ea
X1 Tools 3/4-10 Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 25PK X1E-FAS-NUT-LOC-1624x25
X1 Tools

3/4-10 Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 25PK

Zoro # G122848440
Mfr # X1E-FAS-NUT-LOC-1624x25
product price:  $50.55
/pk 25, $2.02/ea
X1 Tools 5/16-18 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Ins. Locknuts, 6PK X1E-FAS-NUT-LOC-2020x6
X1 Tools

5/16-18 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Ins. Locknuts, 6PK

Zoro # G422864775
Mfr # X1E-FAS-NUT-LOC-2020x6
product price:  $31.55
/pk 6, $5.26/ea
X1 Tools 3/4-16 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 250PK X1E-FAS-NUT-LOC-3748x250
X1 Tools

3/4-16 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 250PK

Zoro # G322847953
Mfr # X1E-FAS-NUT-LOC-3748x250
product price:  $7,367.99
/pk 250, $29.47/ea
X1 Tools M6 x 1 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 250PK X1E-FAS-NUT-LOC-1976x250
X1 Tools

M6 x 1 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 250PK

Zoro # G322855729
Mfr # X1E-FAS-NUT-LOC-1976x250
product price:  $49.65
/pk 250, $0.20/ea
No Product Image Available
Zoro Select

Lock Nut, Steel, PK25

Zoro # G922962315
Mfr # FLHN00600CAD-025P
product price:  $21.99
/pk 25, $0.88/ea
X1 Tools 3/4-16 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 8PK X1E-FAS-NUT-LOC-3456x8
X1 Tools

3/4-16 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 8PK

Zoro # G122857046
Mfr # X1E-FAS-NUT-LOC-3456x8
product price:  $22.29
/pk 8, $2.79/ea
No Product Image Available
Zoro Select

Lock Nut, Stainless Steel, 9/32", PK2

Zoro # G422963287
Mfr # FLNIX050-002P
product price:  $17.19
/pk 2, $8.60/ea
Oxoxo 10-24 Flex Type Lock Nut Full Height 18-8 Stainless Steel, 250PK 511567
Oxoxo

10-24 Flex Type Lock Nut Full Height 18-8 Stainless Steel, 250PK

Zoro # G722673404
Mfr # 511567
product price:  $421.99
/pk 250, $1.69/ea
X1 Tools 7/16-14 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 15PK X1E-FAS-NUT-LOC-3926x15
X1 Tools

7/16-14 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 15PK

Zoro # G622864636
Mfr # X1E-FAS-NUT-LOC-3926x15
product price:  $33.25
/pk 15, $2.22/ea
X1 Tools 10-24 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 2PK X1E-FAS-NUT-LOC-1922x2
X1 Tools

10-24 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 2PK

Zoro # G622847905
Mfr # X1E-FAS-NUT-LOC-1922x2
product price:  $0.72
/pk 2, $0.36/ea
X1 Tools 1 1/8-7 Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 100PK X1E-FAS-NUT-LOC-1630x100
X1 Tools

1 1/8-7 Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 100PK

Zoro # G622864728
Mfr # X1E-FAS-NUT-LOC-1630x100
product price:  $1,248.99
/pk 100, $12.49/ea
X1 Tools 10-24 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 10PK X1E-FAS-NUT-LOC-3420x10
X1 Tools

10-24 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 10PK

Zoro # G822852655
Mfr # X1E-FAS-NUT-LOC-3420x10
product price:  $1.99
/pk 10, $0.20/ea
X1 Tools 7/8-14 UHP Black-Oxide Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 12PK X1E-FAS-NUT-LOC-3234x12
X1 Tools

7/8-14 UHP Black-Oxide Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 12PK

Zoro # G422848140
Mfr # X1E-FAS-NUT-LOC-3234x12
product price:  $144.99
/pk 12, $12.08/ea
X1 Tools 1 1/4-12 UHP Black-Oxide Grade 8 Steel Thin-Profile Nylon-Insert Locknuts X1E-FAS-NUT-LOC-3238x1
X1 Tools

1 1/4-12 UHP Black-Oxide Grade 8 Steel Thin-Profile Nylon-Insert Locknuts

Zoro # G422861071
Mfr # X1E-FAS-NUT-LOC-3238x1
product price:  $35.35
/ea
X1 Tools 1 1/4-12 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 25PK X1E-FAS-NUT-LOC-3040x25
X1 Tools

1 1/4-12 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 25PK

Zoro # G322861867
Mfr # X1E-FAS-NUT-LOC-3040x25
product price:  $609.99
/pk 25, $24.40/ea
Oxoxo 3/8-16 Serrated Flange Hex Lock Nuts Case Hardened HR15N 78/90 Black Zinc and Bake, 1000PK 395726
Oxoxo

3/8-16 Serrated Flange Hex Lock Nuts Case Hardened HR15N 78/90 Black Zinc and Bake, 1000PK

Zoro # G622681257
Mfr # 395726
product price:  $350.99
/pk 1000, $0.35/ea
Oxoxo M8-1.25 Metric Conical K Keps Lock Nut A2 Stainless Steel Passivated, 500PK 637922
Oxoxo

M8-1.25 Metric Conical K Keps Lock Nut A2 Stainless Steel Passivated, 500PK

Zoro # G522699512
Mfr # 637922
product price:  $363.99
/pk 500, $0.73/ea
Oxoxo M10-1.5 Din6926/ISO7043 Metric class 8 Prevail Torque Nylon Insert Hex Flange Lock Nut Z, 750PK 544178
Oxoxo

M10-1.5 Din6926/ISO7043 Metric class 8 Prevail Torque Nylon Insert Hex Flange Lock Nut Z, 750PK

Zoro # G022696554
Mfr # 544178
product price:  $243.99
/pk 750, $0.33/ea
Zoro Select Lock Nut, 9/16"-12, Nylon, Zinc Plated, 0.469 in Ht, 200 PK 56NS
Zoro Select

Lock Nut, 9/16"-12, Nylon, Zinc Plated, 0.469 in Ht, 200 PK

Zoro # G2449935
Mfr # 56NS
product price:  $85.49
/pk 200, $0.43/ea
X1 Tools 3/8-16 Ultra Hi Performance Black-Oxide Steel Nylon-Insert Locknuts, 6PK X1E-FAS-NUT-LOC-1218x6
X1 Tools

3/8-16 Ultra Hi Performance Black-Oxide Steel Nylon-Insert Locknuts, 6PK

Zoro # G022844979
Mfr # X1E-FAS-NUT-LOC-1218x6
product price:  $10.15
/pk 6, $1.69/ea
X1 Tools M5 x 0.8 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 200PK X1E-FAS-NUT-LOC-1974x200
X1 Tools

M5 x 0.8 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 200PK

Zoro # G522848316
Mfr # X1E-FAS-NUT-LOC-1974x200
product price:  $36.29
/pk 200, $0.18/ea
Titan Industrial Supply Lock Nut, Nylon, Grade 8 T3816NLNYZ8
Titan Industrial Supply

Lock Nut, Nylon, Grade 8

Zoro # G309152803
Mfr # T3816NLNYZ8
product price:  $0.27
/ea
Sold in mult. of 32 for $8.64
Lock Nuts (10,000+ items) - Page 181
  • First
  • Previous
  • 181
    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