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  7. Lock Nuts

Lock Nuts (10,000+ items) - Page 229

X1 Tools M20 x 2.5 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 15PK X1E-FAS-NUT-LOC-1990x15
X1 Tools

M20 x 2.5 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 15PK

Zoro # G422867165
Mfr # X1E-FAS-NUT-LOC-1990x15
product price: 
$50.49
/pk 15, $3.37/ea
X1 Tools 3/8-24 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 12PK X1E-FAS-NUT-LOC-3436x12
X1 Tools

3/8-24 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 12PK

Zoro # G622856365
Mfr # X1E-FAS-NUT-LOC-3436x12
product price: 
$3.19
/pk 12, $0.27/ea
Sold in mult. of 3 for $9.57
X1 Tools 1/4-20 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 1000PK X1E-FAS-NUT-LOC-2018x1000
X1 Tools

1/4-20 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 1000PK

Zoro # G622862267
Mfr # X1E-FAS-NUT-LOC-2018x1000
product price: 
$3,620.99
/pk 1000, $3.62/ea
X1 Tools 1 1/4-7 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 50PK X1E-FAS-NUT-LOC-3468x50
X1 Tools

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

Zoro # G422864300
Mfr # X1E-FAS-NUT-LOC-3468x50
product price: 
$924.99
/pk 50, $18.50/ea
X1 Tools 4-40 Black-Oxide Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 6PK X1E-FAS-NUT-LOC-3810x6
X1 Tools

4-40 Black-Oxide Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 6PK

Zoro # G922847353
Mfr # X1E-FAS-NUT-LOC-3810x6
product price: 
$2.85
/pk 6, $0.48/ea
Sold in mult. of 4 for $11.40
X1 Tools 5/16-24 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts X1E-FAS-NUT-LOC-3016x1
X1 Tools

5/16-24 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts

Zoro # G922858014
Mfr # X1E-FAS-NUT-LOC-3016x1
product price: 
$3.75
/ea
Sold in mult. of 3 for $11.25
X1 Tools 1 1/4-7 Hi Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 100PK X1E-FAS-NUT-LOC-3326x100
X1 Tools

1 1/4-7 Hi Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 100PK

Zoro # G922865593
Mfr # X1E-FAS-NUT-LOC-3326x100
product price: 
$5,101.99
/pk 100, $51.02/ea
X1 Tools 6-32 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 8PK X1E-FAS-NUT-LOC-2010x8
X1 Tools

6-32 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 8PK

Zoro # G922864312
Mfr # X1E-FAS-NUT-LOC-2010x8
product price: 
$35.49
/pk 8, $4.44/ea
X1 Tools M18 x 2.5 mm Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 10PK X1E-FAS-NUT-LOC-3494x10
X1 Tools

M18 x 2.5 mm Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 10PK

Zoro # G722861160
Mfr # X1E-FAS-NUT-LOC-3494x10
product price: 
$163.99
/pk 10, $16.40/ea
X1 Tools 5/8-18 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 10PK X1E-FAS-NUT-LOC-1036x10
X1 Tools

5/8-18 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 10PK

Zoro # G022845068
Mfr # X1E-FAS-NUT-LOC-1036x10
product price: 
$36.15
/pk 10, $3.61/ea
X1 Tools 3/8-16 Black-Oxide Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 4PK X1E-FAS-NUT-LOC-3824x4
X1 Tools

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

Zoro # G422851584
Mfr # X1E-FAS-NUT-LOC-3824x4
product price: 
$9.89
/pk 4, $2.47/ea
Sold in mult. of 2 for $19.78
X1 Tools M18 x 2.5 mm Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 150PK X1E-FAS-NUT-LOC-3494x150
X1 Tools

M18 x 2.5 mm Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 150PK

Zoro # G322861720
Mfr # X1E-FAS-NUT-LOC-3494x150
product price: 
$2,260.99
/pk 150, $15.07/ea
X1 Tools 1/2-20 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 500PK X1E-FAS-NUT-LOC-1946x500
X1 Tools

1/2-20 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 500PK

Zoro # G622853418
Mfr # X1E-FAS-NUT-LOC-1946x500
product price: 
$358.99
/pk 500, $0.72/ea
X1 Tools 4-40 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 500PK X1E-FAS-NUT-LOC-2114x500
X1 Tools

4-40 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 500PK

Zoro # G422864522
Mfr # X1E-FAS-NUT-LOC-2114x500
product price: 
$64.29
/pk 500, $0.13/ea
X1 Tools 1-8 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 4PK X1E-FAS-NUT-LOC-1964x4
X1 Tools

1-8 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 4PK

Zoro # G322865858
Mfr # X1E-FAS-NUT-LOC-1964x4
product price: 
$28.39
/pk 4, $7.10/ea
Newport Fasteners Lock Nut, #5-40, Steel, Zinc Plated, 0.102 in Ht, 5000 PK 653482
Newport Fasteners

Lock Nut, #5-40, Steel, Zinc Plated, 0.102 in Ht, 5000 PK

Zoro # G506330073
Mfr # 653482
product price: 
$472.99
/pk 5000, $0.09/ea
X1 Tools 1/4-20 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 120PK X1E-FAS-NUT-LOC-2125x120
X1 Tools

1/4-20 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 120PK

Zoro # G822855342
Mfr # X1E-FAS-NUT-LOC-2125x120
product price: 
$39.59
/pk 120, $0.33/ea
X1 Tools M5 x 0.8 mm Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 50PK X1E-FAS-NUT-LOC-3480x50
X1 Tools

M5 x 0.8 mm Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 50PK

Zoro # G822849730
Mfr # X1E-FAS-NUT-LOC-3480x50
product price: 
$40.99
/pk 50, $0.82/ea
X1 Tools 7/16-20 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 10PK X1E-FAS-NUT-LOC-3928x10
X1 Tools

7/16-20 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 10PK

Zoro # G822863736
Mfr # X1E-FAS-NUT-LOC-3928x10
product price: 
$23.49
/pk 10, $2.35/ea
X1 Tools 3/8-16 Black-Oxide Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknut, 120PK X1E-FAS-NUT-LOC-3824x120
X1 Tools

3/8-16 Black-Oxide Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknut, 120PK

Zoro # G522855277
Mfr # X1E-FAS-NUT-LOC-3824x120
product price: 
$140.99
/pk 120, $1.17/ea
X1 Tools 1 1/4-7 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 500PK X1E-FAS-NUT-LOC-2147x500
X1 Tools

1 1/4-7 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts, 500PK

Zoro # G922865913
Mfr # X1E-FAS-NUT-LOC-2147x500
product price: 
$18,639.99
/pk 500, $37.28/ea
X1 Tools 6-32 Performance Black-Corrosion-Resistant-Coated Steel Thin-Profile Nylon-Insert Locknuts X1E-FAS-NUT-LOC-3610x1
X1 Tools

6-32 Performance Black-Corrosion-Resistant-Coated Steel Thin-Profile Nylon-Insert Locknuts

Zoro # G422845200
Mfr # X1E-FAS-NUT-LOC-3610x1
product price: 
$5.15
/ea
Sold in mult. of 2 for $10.30
X1 Tools 3/8-24 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 150PK X1E-FAS-NUT-LOC-3020x150
X1 Tools

3/8-24 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 150PK

Zoro # G822867345
Mfr # X1E-FAS-NUT-LOC-3020x150
product price: 
$95.85
/pk 150, $0.64/ea
X1 Tools 1/2-20 Black-Oxide C.R. 18-8 Stainless Steel Nylon-Insert Locknuts, 1000PK X1E-FAS-NUT-LOC-2250x1000
X1 Tools

1/2-20 Black-Oxide C.R. 18-8 Stainless Steel Nylon-Insert Locknuts, 1000PK

Zoro # G122852386
Mfr # X1E-FAS-NUT-LOC-2250x1000
product price: 
$6,291.99
/pk 1000, $6.29/ea
X1 Tools 3/8-24 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 12PK X1E-FAS-NUT-LOC-3924x12
X1 Tools

3/8-24 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 12PK

Zoro # G222860847
Mfr # X1E-FAS-NUT-LOC-3924x12
product price: 
$19.79
/pk 12, $1.65/ea
X1 Tools 1/4-28 Ultra Hi Performance Black-Oxide Steel Nylon-Insert Locknuts, 200PK X1E-FAS-NUT-LOC-1212x200
X1 Tools

1/4-28 Ultra Hi Performance Black-Oxide Steel Nylon-Insert Locknuts, 200PK

Zoro # G822855175
Mfr # X1E-FAS-NUT-LOC-1212x200
product price: 
$97.49
/pk 200, $0.49/ea
X1 Tools 3/4-16 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 6PK X1E-FAS-NUT-LOC-1958x6
X1 Tools

3/4-16 Performance Zinc-Plated Steel Nylon-Insert Locknuts, 6PK

Zoro # G522864002
Mfr # X1E-FAS-NUT-LOC-1958x6
product price: 
$15.69
/pk 6, $2.61/ea
X1 Tools 1-8 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts X1E-FAS-NUT-LOC-2143x1
X1 Tools

1-8 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts

Zoro # G222844885
Mfr # X1E-FAS-NUT-LOC-2143x1
product price: 
$19.39
/ea
X1 Tools 10-32 Black-Oxide Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 400PK X1E-FAS-NUT-LOC-3818x400
X1 Tools

10-32 Black-Oxide Corrosion-Resistant 18-8 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 400PK

Zoro # G222859001
Mfr # X1E-FAS-NUT-LOC-3818x400
product price: 
$212.99
/pk 400, $0.53/ea
X1 Tools 10-32 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 50PK X1E-FAS-NUT-LOC-2016x50
X1 Tools

10-32 Performance Black-Corrosion-Resistant-Coated Steel Nylon-Insert Locknuts, 50PK

Zoro # G222858882
Mfr # X1E-FAS-NUT-LOC-2016x50
product price: 
$190.99
/pk 50, $3.82/ea
X1 Tools 5/8-18 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 75PK X1E-FAS-NUT-LOC-1036x75
X1 Tools

5/8-18 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 75PK

Zoro # G022851984
Mfr # X1E-FAS-NUT-LOC-1036x75
product price: 
$220.99
/pk 75, $2.95/ea
X1 Tools 7/16-20 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 6PK X1E-FAS-NUT-LOC-3440x6
X1 Tools

7/16-20 Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 6PK

Zoro # G322863779
Mfr # X1E-FAS-NUT-LOC-3440x6
product price: 
$2.19
/pk 6, $0.37/ea
Sold in mult. of 5 for $10.95
X1 Tools M16 x 2 mm Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 100PK X1E-FAS-NUT-LOC-3492x100
X1 Tools

M16 x 2 mm Performance Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 100PK

Zoro # G122864624
Mfr # X1E-FAS-NUT-LOC-3492x100
product price: 
$700.99
/pk 100, $7.01/ea
X1 Tools 3/8-24 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 200PK X1E-FAS-NUT-LOC-3924x200
X1 Tools

3/8-24 Corrosion-Resistant 316 Stainless Steel Thin-Profile Nylon-Insert Locknuts, 200PK

Zoro # G722856135
Mfr # X1E-FAS-NUT-LOC-3924x200
product price: 
$238.99
/pk 200, $1.19/ea
X1 Tools M14 x 2 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 120PK X1E-FAS-NUT-LOC-1984x120
X1 Tools

M14 x 2 mm Performance Zinc-Plated Steel Nylon-Insert Locknuts, 120PK

Zoro # G822848283
Mfr # X1E-FAS-NUT-LOC-1984x120
product price: 
$136.99
/pk 120, $1.14/ea
X1 Tools 1/2-20 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 75PK X1E-FAS-NUT-LOC-3028x75
X1 Tools

1/2-20 UHP Yellow Zinc Plated Grade 8 Steel Thin-Profile Nylon-Insert Locknuts, 75PK

Zoro # G122856483
Mfr # X1E-FAS-NUT-LOC-3028x75
product price: 
$204.99
/pk 75, $2.73/ea
Lock Nuts (10,000+ items) - Page 229
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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 NutsCap Nuts & Acorn NutsWing NutsGeneral Washers
Hex Head Cap ScrewsMachine ScrewsSocket Head Cap ScrewsLock WashersSelf-Tapping Screws
3/4 lock nuts1/4" locking nut10mm nuts1" lock nuts1/2" flange lock nut
nylon insert hex nutn-10 lock nut3/8-16 ss nuts1/4 npt locknuts4" lock nuts

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