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
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
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

Lock Nuts (10,000+ items) - Page 5

Zoro Select Nylon Insert Lock Nut, 1-1/8"-7, Steel, Grade 2, Zinc Plated, 1 9/32 in Ht, 5 PK U12300.112.0001
Zoro Select

Nylon Insert Lock Nut, 1-1/8"-7, Steel, Grade 2, Zinc Plated, 1 9/32 in Ht, 5 PK

Zoro # G2282491
Mfr # U12300.112.0001
product price:  $8.89
/pk 5, $1.78/ea
Zoro Select Nylon Insert Lock Nut, 3/8"-16, Steel, Grade 2, Zinc Plated, 35/64 in Ht, 50 PK NLI20370NU-050P
Zoro Select

Nylon Insert Lock Nut, 3/8"-16, Steel, Grade 2, Zinc Plated, 35/64 in Ht, 50 PK

Zoro # G2602932
Mfr # NLI20370NU-050P
product price:  $7.15
/pk 50, $0.14/ea
Auveco WASHER LOCK NUT #10-24 1/2 O.D. 3/8 HEX, 100PK 2557
Auveco

WASHER LOCK NUT #10-24 1/2 O.D. 3/8 HEX, 100PK

Zoro # G212306805
Mfr # 2557
product price:  $9.39
/pk 100, $0.09/ea
Msi Products 1in INDUSTRIAL 150lb 304 Stainless Steel Locknut A3040616
Msi Products

1in INDUSTRIAL 150lb 304 Stainless Steel Locknut

Zoro # G615327957
Mfr # A3040616
product price:  $12.65
/ea
Camrail Lock Nut, 3/4"-10, Steel, Grade 8, Cam Koat, 20 PK 788-74110-000
Camrail

Lock Nut, 3/4"-10, Steel, Grade 8, Cam Koat, 20 PK

Zoro # G4410314
Mfr # 788-74110-000
product price:  $98.65
/pk 20, $4.93/ea
Suburban Bolt And Supply Lock Nut, 1/4"-20, Stainless Steel A24201600NE
Suburban Bolt And Supply

Lock Nut, 1/4"-20, Stainless Steel

Zoro # G803504771
Mfr # A24201600NE
product price:  $0.43
/ea
Sold in mult. of 100 for $43.00
Huyett Nylon Insert Lock Nut, M6 x 1.00, Steel, Class 8, Zinc Clear Trivalent, 6 mm Ht NUTH44-M060-00608S3
Huyett

Nylon Insert Lock Nut, M6 x 1.00, Steel, Class 8, Zinc Clear Trivalent, 6 mm Ht

Zoro # G713331276
Mfr # NUTH44-M060-00608S3
product price:  $0.05
/ea
Sold in mult. of 347 for $17.35
Boltsandnuts.Com Top Lock Lock Nut, 7/16"-20, Grade 8, Zinc Plated, 75 PK 43FPTNCZ-75
Boltsandnuts.Com

Top Lock Lock Nut, 7/16"-20, Grade 8, Zinc Plated, 75 PK

Zoro # G514450695
Mfr # 43FPTNCZ-75
product price:  $40.65
/pk 75, $0.54/ea
Midwest Fastener Nylon Insert Lock Nut, M6-1.00, A2 Stainless Steel, Not Graded, 100 PK 55129
Midwest Fastener

Nylon Insert Lock Nut, M6-1.00, A2 Stainless Steel, Not Graded, 100 PK

Zoro # G902526926
Mfr # 55129
product price:  $12.55
/pk 100, $0.13/ea
X1 Tools 1/4-20 Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts X1E-FAS-NUT-LOC-3720x1
X1 Tools

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

Zoro # G822860346
Mfr # X1E-FAS-NUT-LOC-3720x1
product price:  $0.83
/ea
Msi Products 1/4in INDUSTRIAL 150lb 304 Stainless Steel Locknut A3040604
Msi Products

1/4in INDUSTRIAL 150lb 304 Stainless Steel Locknut

Zoro # G015327908
Mfr # A3040604
product price:  $9.29
/ea
Sold in mult. of 2 for $18.58
Zoro Select Self Clinching Lock Nut, 5/16"-18, Steel, Zinc Plated, 4000 PK 31-2NCL
Zoro Select

Self Clinching Lock Nut, 5/16"-18, Steel, Zinc Plated, 4000 PK

Zoro # G2437895
Mfr # 31-2NCL
product price:  $1,154.99
/pk 4000, $0.29/ea
Midwest Fastener Standard Hex Top Lock Lock Nut, 5/16"-24, Steel, Grade 2, Zinc Plated, 12 PK 64531
Midwest Fastener

Standard Hex Top Lock Lock Nut, 5/16"-24, Steel, Grade 2, Zinc Plated, 12 PK

Zoro # G002526772
Mfr # 64531
product price:  $6.75
/pk 12, $0.56/ea
Sold in mult. of 2 for $13.50
Huyett Lock Nut, 1-5/8"-16, Steel, Plain NI-08
Huyett

Lock Nut, 1-5/8"-16, Steel, Plain

Zoro # G800401158
Mfr # NI-08
product price:  $32.15
/ea
Sold in mult. of 2 for $64.30
Zoro Select Serrated Lock Nut, 3/4"-16, Steel, Grade A, Zinc Plated, 43/64 in Ht, 10 PK U11612.075.0001
Zoro Select

Serrated Lock Nut, 3/4"-16, Steel, Grade A, Zinc Plated, 43/64 in Ht, 10 PK

Zoro # G3391346
Mfr # U11612.075.0001
product price:  $14.15
/pk 10, $1.42/ea
Midwest Fastener Standard Hex Top Lock Lock Nut, 3/4"-10, Steel, Grade 2, Zinc Plated, 20 PK 09736
Midwest Fastener

Standard Hex Top Lock Lock Nut, 3/4"-10, Steel, Grade 2, Zinc Plated, 20 PK

Zoro # G702526751
Mfr # 09736
product price:  $31.85
/pk 20, $1.59/ea
Midwest Fastener Serrated Lock Nut, 3/8"-24, 18-8 Stainless Steel, Not Graded, 5 PK 33773
Midwest Fastener

Serrated Lock Nut, 3/8"-24, 18-8 Stainless Steel, Not Graded, 5 PK

Zoro # G002526680
Mfr # 33773
product price:  $9.65
/pk 5, $1.93/ea
Sold in mult. of 2 for $19.30
Suburban Bolt And Supply Stover Lock Nut, 5/8"-18, Steel, Grade C, Zinc Plated A04304000STZ
Suburban Bolt And Supply

Stover Lock Nut, 5/8"-18, Steel, Grade C, Zinc Plated

Zoro # G603459059
Mfr # A04304000STZ
product price:  $1.95
/ea
Sold in mult. of 50 for $97.50
X1 Tools M16 x 2 mm Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 4PK X1E-FAS-NUT-LOC-3492x4
X1 Tools

M16 x 2 mm Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 4PK

Zoro # G622845161
Mfr # X1E-FAS-NUT-LOC-3492x4
product price:  $35.65
/pk 4, $8.91/ea
Midwest Fastener Nylon Insert Lock Nut, M7-1.00, Steel, Class 8, Zinc Plated, 50 PK 53665
Midwest Fastener

Nylon Insert Lock Nut, M7-1.00, Steel, Class 8, Zinc Plated, 50 PK

Zoro # G802526880
Mfr # 53665
product price:  $8.95
/pk 50, $0.18/ea
Whittet-Higgins 18 Threads per Inch, 2-1/4 in. Outside Diameter, 1/2 in. Nominal Thickness, 1.563-18 Thread Size BH-08
Whittet-Higgins

18 Threads per Inch, 2-1/4 in. Outside Diameter, 1/2 in. Nominal Thickness, 1.563-18 Thread Size

Zoro # G112509825
Mfr # BH-08
product price:  $21.25
/ea
Midwest Fastener Lock Nut, 1/4"-20, Nylon, Zinc Plated 3649
Midwest Fastener

Lock Nut, 1/4"-20, Nylon, Zinc Plated

Zoro # G907453180
Mfr # 3649
product price:  $15.75
/ea
Suburban Bolt And Supply Nylon Insert Lock Nut, 1/2"-13, Nylon, Zinc Plated A0420320NTE
Suburban Bolt And Supply

Nylon Insert Lock Nut, 1/2"-13, Nylon, Zinc Plated

Zoro # G703459775
Mfr # A0420320NTE
product price:  $0.33
/ea
Sold in mult. of 100 for $33.00
Midwest Fastener Breakaway Lock Nut, 1/4"-20, Zinc, Zinc Plated, 10 PK 77782
Midwest Fastener

Breakaway Lock Nut, 1/4"-20, Zinc, Zinc Plated, 10 PK

Zoro # G402512528
Mfr # 77782
product price:  $32.65
/pk 10, $3.26/ea
Jacob NPT 3/8" Locknut PABK 238PANPT/SW/G
Jacob

NPT 3/8" Locknut PABK

Zoro # G7895992
Mfr # 238PANPT/SW/G
product price:  $0.24
/ea
Sold in mult. of 39 for $9.36
Zoro Select Nylon Insert Lock Nut, #10-32, Steel, Grade 2, Chrome Plated, 15/64 in Ht, 5 PK MPB3252
Zoro Select

Nylon Insert Lock Nut, #10-32, Steel, Grade 2, Chrome Plated, 15/64 in Ht, 5 PK

Zoro # G0494846
Mfr # MPB3252
product price:  $4.59
/pk 5, $0.92/ea
Genesis 3/8-16 NYLON INSERT L/N STEEL ZINC, 25PK 311-108-WRK
Genesis

3/8-16 NYLON INSERT L/N STEEL ZINC, 25PK

Zoro # G914552845
Mfr # 311-108-WRK
product price:  $5.59
/pk 25, $0.22/ea
Sold in mult. of 2 for $11.18
Thrifco Plumbing 1-1/4 Inch Gal Locknut Spud 4401849
Thrifco Plumbing

1-1/4 Inch Gal Locknut Spud

Zoro # G210330505
Mfr # 4401849
product price:  $4.39
/ea
Sold in mult. of 2 for $8.78
Zoro Select Nylon Insert Lock Nut, 1/4"-20, Steel, Grade 2, Zinc Plated, 3/8 in Ht, 100 PK NLI20250NU-100P
CAD Files Available
Zoro Select

Nylon Insert Lock Nut, 1/4"-20, Steel, Grade 2, Zinc Plated, 3/8 in Ht, 100 PK

Zoro # G0761844
Mfr # NLI20250NU-100P
product price:  $5.55
/pk 100, $0.06/ea
X1 Tools 3/4-16 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 2PK X1E-FAS-NUT-LOC-3456x2
X1 Tools

3/4-16 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 2PK

Zoro # G722862556
Mfr # X1E-FAS-NUT-LOC-3456x2
product price:  $5.29
/pk 2, $2.65/ea
Huyett Nylon Insert Lock Nut, 3/8", Nylon, Zinc Clear Trivalent LNUT-0375C-ZN
Huyett

Nylon Insert Lock Nut, 3/8", Nylon, Zinc Clear Trivalent

Zoro # G500417749
Mfr # LNUT-0375C-ZN
product price:  $0.17
/ea
Sold in mult. of 200 for $34.00
X1 Tools M6 x 1 mm Ultra Hi Performance Zinc-Plated Steel Nylon-Insert Locknuts, 120PK X1E-FAS-NUT-LOC-1114x120
X1 Tools

M6 x 1 mm Ultra Hi Performance Zinc-Plated Steel Nylon-Insert Locknuts, 120PK

Zoro # G622844782
Mfr # X1E-FAS-NUT-LOC-1114x120
product price:  $42.39
/pk 120, $0.35/ea
Anvil Lock Nut, 3/8", Galvanized 8700162459
Anvil

Lock Nut, 3/8", Galvanized

Zoro # G3251636
Mfr # 8700162459
product price:  $7.95
/ea
X1 Tools 7/8-14 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts X1E-FAS-NUT-LOC-3460x1
X1 Tools

7/8-14 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts

Zoro # G822848313
Mfr # X1E-FAS-NUT-LOC-3460x1
product price:  $5.25
/ea
X1 Tools 1-14 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts X1E-FAS-NUT-LOC-3464x1
X1 Tools

1-14 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts

Zoro # G022867749
Mfr # X1E-FAS-NUT-LOC-3464x1
product price:  $10.15
/ea
Newport Fasteners Flexible Top Lock Nut, 1/4"-28, Steel, Cadmium Plated, 0.122 in Ht, 500 PK 372230
Newport Fasteners

Flexible Top Lock Nut, 1/4"-28, Steel, Cadmium Plated, 0.122 in Ht, 500 PK

Zoro # G506329688
Mfr # 372230
product price:  $420.99
/pk 500, $0.84/ea
Lock Nuts (10,000+ items) - Page 5
  • First
  • Previous
  • 5
    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
lock nut nylon insertnylon insert flange nutflanged locknutnylon-insert locknuts3/8-16 nuts stainless steel
3/8" flange nuts5/8-18 flange nutdistorted thread lock nutserrated flange lock nutlock 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

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