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  7. Lock Nuts

Lock Nuts (10,000+ items) - Page 11

X1 Tools 1/4-20 Performance Black-Zinc-Plated Steel Thin-Profile Nylon-Insert Locknuts, 4PK X1E-FAS-NUT-LOC-3520x4
X1 Tools

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

Zoro # G722863003
Mfr # X1E-FAS-NUT-LOC-3520x4
product price:  $5.05
/pk 4, $1.26/ea
Zoro Select Nylon Insert Lock Nut, 2"-4 1/2, Steel, Grade 2, Black Oxide, 1-3/4 in Ht 4FHZ5
Zoro Select

Nylon Insert Lock Nut, 2"-4 1/2, Steel, Grade 2, Black Oxide, 1-3/4 in Ht

Zoro # G3127451
Mfr # 4FHZ5
product price:  $19.79
/ea
Boltsandnuts.Com Top Lock Lock Nut, M6-1.0, Class 10, Zinc Plated, 200 PK M6CPTN10Z-200
Boltsandnuts.Com

Top Lock Lock Nut, M6-1.0, Class 10, Zinc Plated, 200 PK

Zoro # G814499882
Mfr # M6CPTN10Z-200
product price:  $27.15
/pk 200, $0.14/ea
Midwest Fastener Lock Nut, M16-2.00, Stainless Steel, 10 PK 55134
Midwest Fastener

Lock Nut, M16-2.00, Stainless Steel, 10 PK

Zoro # G102526603
Mfr # 55134
product price:  $15.95
/pk 10, $1.60/ea
Zoro Select Lock Nut, 1/4"-20, Nylon, Black Oxide, 0.225 in Ht, 4000 PK 14NSTB
Zoro Select

Lock Nut, 1/4"-20, Nylon, Black Oxide, 0.225 in Ht, 4000 PK

Zoro # G2451861
Mfr # 14NSTB
product price:  $209.99
/pk 4000, $0.05/ea
Boltsandnuts.Com Top Lock Lock Nut, M10-1.5, Class 8, Zinc Plated, 25 PK M10CFLN8Z-25
Boltsandnuts.Com

Top Lock Lock Nut, M10-1.5, Class 8, Zinc Plated, 25 PK

Zoro # G414504528
Mfr # M10CFLN8Z-25
product price:  $23.99
/pk 25, $0.96/ea
Midwest Fastener Nylon Insert Lock Nut, 3/8"-16, 18-8 Stainless Steel, Not Graded, 50 PK 05291
Midwest Fastener

Nylon Insert Lock Nut, 3/8"-16, 18-8 Stainless Steel, Not Graded, 50 PK

Zoro # G902526780
Mfr # 05291
product price:  $21.29
/pk 50, $0.43/ea
Newport Fasteners Serrated Lock Nut, M20-2.50, Steel, Class 8, Zinc Plated, 25 PK 382486-PR-25
Newport Fasteners

Serrated Lock Nut, M20-2.50, Steel, Class 8, Zinc Plated, 25 PK

Zoro # G106308960
Mfr # 382486-PR-25
product price:  $106.99
/pk 25, $4.28/ea
Boltsandnuts.Com Nylon Insert Lock Nut, 5/16"-24, Grade A, Zinc Plated, 75 PK 31FNNE2Z-75
Boltsandnuts.Com

Nylon Insert Lock Nut, 5/16"-24, Grade A, Zinc Plated, 75 PK

Zoro # G014449311
Mfr # 31FNNE2Z-75
product price:  $16.75
/pk 75, $0.22/ea
X1 Tools M8 x 1.25 mm Corrosion-Resistant 316 Stainless Steel Nylon-Insert Locknuts, 25PK X1E-FAS-NUT-LOC-2382x25
X1 Tools

M8 x 1.25 mm Corrosion-Resistant 316 Stainless Steel Nylon-Insert Locknuts, 25PK

Zoro # G422847778
Mfr # X1E-FAS-NUT-LOC-2382x25
product price:  $23.39
/pk 25, $0.94/ea
X1 Tools 10-32 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts X1E-FAS-NUT-LOC-2122x1
X1 Tools

10-32 Corrosion-Resistant 18-8 Stainless Steel Nylon-Insert Locknuts

Zoro # G022861358
Mfr # X1E-FAS-NUT-LOC-2122x1
product price:  $0.70
/ea
Midwest Fastener Nylon Insert Lock Nut, 3/8"-16, 18-8 Stainless Steel, Not Graded, Polished, 5 PK 33385
Midwest Fastener

Nylon Insert Lock Nut, 3/8"-16, 18-8 Stainless Steel, Not Graded, Polished, 5 PK

Zoro # G702526799
Mfr # 33385
product price:  $11.25
/pk 5, $2.25/ea
X1 Tools 1/2-13 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 25PK X1E-FAS-NUT-LOC-1026x25
X1 Tools

1/2-13 Ultra H.P. Yellow Zinc Plated Grade 8 Steel Nylon-Insert Locknuts, 25PK

Zoro # G122844220
Mfr # X1E-FAS-NUT-LOC-1026x25
product price:  $43.15
/pk 25, $1.73/ea
Boltsandnuts.Com Nylon Insert Lock Nut, M16-2.0, Class 10, Zinc Plated, 500 PK M16CHNN10Z-500
Boltsandnuts.Com

Nylon Insert Lock Nut, M16-2.0, Class 10, Zinc Plated, 500 PK

Zoro # G614504410
Mfr # M16CHNN10Z-500
product price:  $342.99
/pk 500, $0.69/ea
Boltsandnuts.Com Serrated Lock Nut, 1/4"-20, Steel, Zinc Plated, 4400 PK 25CSLN2Z-4400
Boltsandnuts.Com

Serrated Lock Nut, 1/4"-20, Steel, Zinc Plated, 4400 PK

Zoro # G714449628
Mfr # 25CSLN2Z-4400
product price:  $230.99
/pk 4400, $0.05/ea
Newport Fasteners Nylon Insert Lock Nut, 1/4"-20, 316 Stainless Steel, Not Graded, 100 PK 983512-PR-100
Newport Fasteners

Nylon Insert Lock Nut, 1/4"-20, 316 Stainless Steel, Not Graded, 100 PK

Zoro # G406331828
Mfr # 983512-PR-100
product price:  $42.55
/pk 100, $0.43/ea
Huyett Nylon Insert Lock Nut, 3/8-24, Steel, Grade C, Zinc Yellow Hexavalent, 0.453 in Ht NUTH45-0375-0453GC6
Huyett

Nylon Insert Lock Nut, 3/8-24, Steel, Grade C, Zinc Yellow Hexavalent, 0.453 in Ht

Zoro # G613330935
Mfr # NUTH45-0375-0453GC6
product price:  $0.10
/ea
Sold in mult. of 186 for $18.60
X1 Tools M10 x 1.5 mm Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 100PK X1E-FAS-NUT-LOC-1644x100
X1 Tools

M10 x 1.5 mm Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 100PK

Zoro # G922844994
Mfr # X1E-FAS-NUT-LOC-1644x100
product price:  $64.95
/pk 100, $0.65/ea
Midwest Fastener Nylon Insert Lock Nut, #8-32, 18-8 Stainless Steel, Not Graded, 100 PK 05286
Midwest Fastener

Nylon Insert Lock Nut, #8-32, 18-8 Stainless Steel, Not Graded, 100 PK

Zoro # G402526778
Mfr # 05286
product price:  $19.99
/pk 100, $0.20/ea
Boltsandnuts.Com Lock Nut, 1/2"-13, Grade L9, Zinc Yellow, 70 PK 50CHLNL9Y-70
Boltsandnuts.Com

Lock Nut, 1/2"-13, Grade L9, Zinc Yellow, 70 PK

Zoro # G814455062
Mfr # 50CHLNL9Y-70
product price:  $205.99
/pk 70, $2.94/ea
X1 Tools 5/8-18 Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 25PK X1E-FAS-NUT-LOC-1623x25
X1 Tools

5/8-18 Hi-Performance Zinc-Plated Steel Nylon-Insert Locknuts, 25PK

Zoro # G922856720
Mfr # X1E-FAS-NUT-LOC-1623x25
product price:  $44.99
/pk 25, $1.80/ea
Zoro Select Lock Nut, 1/4"-20, 18-8 Stainless Steel, Not Graded, 250 PK 14NXLTH188
Zoro Select

Lock Nut, 1/4"-20, 18-8 Stainless Steel, Not Graded, 250 PK

Zoro # G2454844
Mfr # 14NXLTH188
product price:  $464.99
/pk 250, $1.86/ea
Boltsandnuts.Com Nylon Insert Lock Nut, 1/4"-28, Grade 8, Zinc Yellow, 200 PK 25FNNE8Y-200
Boltsandnuts.Com

Nylon Insert Lock Nut, 1/4"-28, Grade 8, Zinc Yellow, 200 PK

Zoro # G114447125
Mfr # 25FNNE8Y-200
product price:  $37.09
/pk 200, $0.19/ea
Boltsandnuts.Com External Tooth Lock Washer Lock Nut, 1/4"-20, 18-8 Stainless Steel, Plain, 2000 PK 25CNKESS-2000
Boltsandnuts.Com

External Tooth Lock Washer Lock Nut, 1/4"-20, 18-8 Stainless Steel, Plain, 2000 PK

Zoro # G414448501
Mfr # 25CNKESS-2000
product price:  $438.99
/pk 2000, $0.22/ea
Suburban Bolt And Supply Nylon Insert Lock Nut, 3/8"-16, Nylon, Zinc Plated A0420240NTE
Suburban Bolt And Supply

Nylon Insert Lock Nut, 3/8"-16, Nylon, Zinc Plated

Zoro # G203458735
Mfr # A0420240NTE
product price:  $0.19
/ea
Sold in mult. of 100 for $19.00
Midwest Fastener Lock Nut, 5/8"-18, Steel, Chrome Plated, 10 PK 30157
Midwest Fastener

Lock Nut, 5/8"-18, Steel, Chrome Plated, 10 PK

Zoro # G302526595
Mfr # 30157
product price:  $42.95
/pk 10, $4.30/ea
Newport Fasteners Lock Nut, #12-24, Steel, Zinc Plated, 0.148 in Ht, 100 PK 381925-PR-100
Newport Fasteners

Lock Nut, #12-24, Steel, Zinc Plated, 0.148 in Ht, 100 PK

Zoro # G806327803
Mfr # 381925-PR-100
product price:  $30.59
/pk 100, $0.31/ea
Boltsandnuts.Com Serrated Lock Nut, 5/16"-18, 18-8 Stainless Steel, Plain, 250 PK 31CSLNSS-250
Boltsandnuts.Com

Serrated Lock Nut, 5/16"-18, 18-8 Stainless Steel, Plain, 250 PK

Zoro # G414447351
Mfr # 31CSLNSS-250
product price:  $59.29
/pk 250, $0.24/ea
X1 Tools M4 x 0.7 mm Hi-Performance Yellow Zinc Plated Steel Nylon-Insert Locknuts, 50PK X1E-FAS-NUT-LOC-1512x50
X1 Tools

M4 x 0.7 mm Hi-Performance Yellow Zinc Plated Steel Nylon-Insert Locknuts, 50PK

Zoro # G322847649
Mfr # X1E-FAS-NUT-LOC-1512x50
product price:  $22.09
/pk 50, $0.44/ea
Midwest Fastener Lock Nut, 3/8"-16, 18-8 Stainless Steel, Not Graded, 10 PK 37463
Midwest Fastener

Lock Nut, 3/8"-16, 18-8 Stainless Steel, Not Graded, 10 PK

Zoro # G202526909
Mfr # 37463
product price:  $15.45
/pk 10, $1.55/ea
X1 Tools 1/4-20 Ultra Hi Performance Black-Oxide Steel Nylon-Insert Locknuts, 6PK X1E-FAS-NUT-LOC-1210x6
X1 Tools

1/4-20 Ultra Hi Performance Black-Oxide Steel Nylon-Insert Locknuts, 6PK

Zoro # G722846525
Mfr # X1E-FAS-NUT-LOC-1210x6
product price:  $3.99
/pk 6, $0.67/ea
Midwest Fastener Nylon Insert Lock Nut, M5-0.80, A2 Stainless Steel, Not Graded, 10 PK 75662
Midwest Fastener

Nylon Insert Lock Nut, M5-0.80, A2 Stainless Steel, Not Graded, 10 PK

Zoro # G202526824
Mfr # 75662
product price:  $6.25
/pk 10, $0.63/ea
Sold in mult. of 2 for $12.50
Newport Fasteners Nylon Insert Lock Nut, 7/16"-14, 18-8 Stainless Steel, Not Graded, 100 PK 591432-PR-100
Newport Fasteners

Nylon Insert Lock Nut, 7/16"-14, 18-8 Stainless Steel, Not Graded, 100 PK

Zoro # G806329517
Mfr # 591432-PR-100
product price:  $137.99
/pk 100, $1.38/ea
Huyett Nylon Insert Lock Nut, M5 x 0.80, Steel, Class 8, Zinc Clear Trivalent, 4.9 mm Ht NUTH44-M050-00498S3
Huyett

Nylon Insert Lock Nut, M5 x 0.80, Steel, Class 8, Zinc Clear Trivalent, 4.9 mm Ht

Zoro # G113331234
Mfr # NUTH44-M050-00498S3
product price:  $0.04
/ea
Sold in mult. of 585 for $23.40
X1 Tools M3 x 0.5 mm Corrosion-Resistant 316 Stainless Steel Nylon-Insert Locknuts, 20PK X1E-FAS-NUT-LOC-2374x20
X1 Tools

M3 x 0.5 mm Corrosion-Resistant 316 Stainless Steel Nylon-Insert Locknuts, 20PK

Zoro # G222857038
Mfr # X1E-FAS-NUT-LOC-2374x20
product price:  $7.89
/pk 20, $0.39/ea
Boltsandnuts.Com Nylon Insert Lock Nut, 5/16"-18, Grade 8, Phosphate and Oil, 150 PK 31CNNECP-150
Boltsandnuts.Com

Nylon Insert Lock Nut, 5/16"-18, Grade 8, Phosphate and Oil, 150 PK

Zoro # G614446352
Mfr # 31CNNECP-150
product price:  $34.15
/pk 150, $0.23/ea
Lock Nuts (10,000+ items) - Page 11
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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 NutsCoupling NutsWing NutsGeneral Washers
Hex Head Cap ScrewsSocket Head Cap ScrewsMachine ScrewsLock WashersSelf-Tapping Screws
1/4-20 stainless steel nut5/16-18 stainless steel boltnylon insert flange nutdistorted thread lock nut5/8-18 flange nut
flanged locknutlock nut 5/16-18nylon-insert locknutslock nut nylon insert3/8-16 nuts stainless steel

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