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Lock Nuts

Showing 1 - 36 of 2,462 results

Lock Nuts are nuts that resist loosening under vibrations and torque. That’s why they’re used in automotive engines to reduce vibration, and hold wheels tight against the axles. Some lock nuts have a nylon insert, which help keeps the nut more snug against the bolt. Zoro has a super selection of nuts and bolts, including flange nuts, hex nuts, and wheel nuts too.

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Adhesives, Fasteners & Welding

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Lock Nuts

$0.00 - $100.00 (1,729)

$100.00 - $200.00 (335)

$200.00 - $300.00 (171)

$300.00 - $400.00 (54)

$400.00 & Up (173)

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3/8"-16 (79)

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5/8"-11 (71)

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ZORO SELECT 1/4"-20 Grade 8.8 Zinc Plated Finish Steel Tooth Washer Lock Nut, 100 pk.

Zoro # G1466227 Mfr # KEPI0250-100P

$3.38

REIKU 3/4"-14 PA6 Gloss Finish Nylon Lock Nut, 10 pk.

Zoro # G4555774 Mfr # PAGMB-N04

$10.45

ZORO SELECT 1/4"-20 Grade 2 Zinc Plated Finish Steel Serrated Flange Lock Nut, 100 pk.

Zoro # G3399882 Mfr # 3HDX2

$5.27

ZORO SELECT #4-40 Plain Finish Nylon Lock Nut, 25 pk.

Zoro # G2008115 Mfr # 0700440SLN

$2.47

ZORO SELECT 5/16"-18 Plain Finish 18-8 Stainless Steel Tooth Washer Lock Nut, 25 pk., Nut Height: 9/32 in

Zoro # G0663896 Mfr # HFNIX031-025P

$5.89

ZORO SELECT 3/8"-16 Grade 8 Zinc Plated Finish Steel Nylon Insert Lock Nut, 50 pk.

Zoro # G3494635 Mfr # 4CAP9

$12.41

ZORO SELECT 5/16"-18 Grade 2 Zinc Plated Finish Steel Serrated Flange Lock Nut, 100 pk.

Zoro # G3083333 Mfr # 3HDX3

$7.14

ZORO SELECT 3/8"-16 Grade 2 Zinc Plated Finish Steel Serrated Flange Lock Nut, 100 pk.

Zoro # G0725155 Mfr # 3HDX4

$9.74

ZORO SELECT 7/8"-14 Grade 8 Yellow Zinc Finish Steel Nylon Insert Lock Nut, 10 pk.

Zoro # G4343726 Mfr # 12P646

$7.15

ZORO SELECT 1/4"-20 Grade 2 Zinc Plated Finish Steel Nylon Insert Lock Nut, 100 pk.

Zoro # G0327871 Mfr # NLI2025NTE-100P

$3.47

ZORO SELECT #4-40 Grade 2 Zinc Plated Finish Steel Tooth Washer Lock Nut, 100 pk.

Zoro # G2471691 Mfr # NLMSI20-40NTM-100P

$1.99

RACO 1/2" Steel Lock Nut, 1000 pk.

Zoro # G4283660 Mfr # 1002

$0.34

ZORO SELECT 1/2"-13 Grade 2 Zinc Plated Finish Steel Nylon Insert Lock Nut, 100 pk.

Zoro # G2723777 Mfr # NLI2050NTE-100P

$12.58

ZORO SELECT 3/8"-16 Grade C Yellow Zinc Finish Steel Deformed Thread Lock Nut, 100 pk.

Zoro # G2097137 Mfr # SLI80371-100P

$12.99

Multiple Options Available

FABORY 3/8"-16 Plain Finish 18-8 Stainless Steel Nylon Insert Lock Nut, 50 pk.

Zoro # G1325466 Mfr # U51738.037.0001

$13.99

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ZORO SELECT 5/8"-11 Grade 2 Zinc Plated Finish Low Carbon Steel Round Slotted Castle Nut, 25 pk.

Zoro # G1915767 Mfr # 287070-PG

$9.71

ZORO SELECT #10-32 Zinc Plated Finish Steel Tooth Washer Lock Nut, 100 pk.

Zoro # G2638851 Mfr # KEPFI-100-100P

$2.26

ZORO SELECT #6-32 Grade 2 Zinc Plated Finish Steel Tooth Washer Lock Nut, 100 pk.

Zoro # G3098645 Mfr # KEPI0-60-100P

$1.84

ZORO SELECT #10-24 Plain Finish Nylon Lock Nut, 25 pk.

Zoro # G2399537 Mfr # 0701024SLN

$2.66

Multiple Options Available

FABORY 5/8"-11 Grade 2 Zinc Plated Finish Steel Nylon Insert Lock Nut, 10 pk.

Zoro # G5332625 Mfr # U12300.062.0001

$3.38

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ZORO SELECT 1/4"-20 Plain Finish Nylon Lock Nut, 25 pk., Nut Height: 9/32 in

Zoro # G1440275 Mfr # 0725020LN

$3.88

FOREVERBOLT Hex Locknut, 1/2"-13, Gr 18-8, PK25

Zoro # G8040761 Mfr # FBLN1213P25

$27.86

ZORO SELECT #8-32 Grade 2 Zinc Plated Finish Steel Tooth Washer Lock Nut, 100 pk.

Zoro # G1084605 Mfr # KEPI0-80-100P

$2.19

RACO 3" Steel Lock Nut

Zoro # G4283706 Mfr # 1012

$2.62

ZORO SELECT 5/16"-18 Grade A Zinc Plated Finish Steel Deformed Thread Lock Nut, 100 pk.

Zoro # G0933572 Mfr # CLNI20310-100P

$5.81

ZORO SELECT 1/4"-20 Grade A Zinc Plated Finish Steel Deformed Thread Lock Nut, 100 pk.

Zoro # G0948437 Mfr # CLNI20250-100P

$4.96

ZORO SELECT #10-24 Grade 2 Zinc Plated Finish Steel Tooth Washer Lock Nut, 100 pk.

Zoro # G0791034 Mfr # KEPI-100-100P

$2.19

Multiple Options Available

FABORY 5/8"-11 Grade 2 Zinc Plated Finish Steel Nylon Insert Jam Lock Nut, 10 pk.

Zoro # G5332993 Mfr # U12423.062.0001

$6.13

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ZORO SELECT 1/4"-20 Grade 2 Zinc Plated Finish Steel Tooth Washer Lock Nut, 100 pk.

Zoro # G0761844 Mfr # NLI20250NU-100P

$6.28

Multiple Options Available

FABORY #8-32 Plain Finish 18-8 Stainless Steel Nylon Insert Jam Lock Nut, 50 pk.

Zoro # G5334646 Mfr # U51730.016.0001

$6.50

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ZORO SELECT 1/4"-20 Plain Finish Nylon Lock Nut, 25 pk.

Zoro # G3125437 Mfr # 0725020SLN

$3.75

Multiple Options Available

FABORY 1"-8 Grade 5 Zinc Plated Finish Carbon Steel Nylon Insert Lock Nut, 5 pk.

Zoro # G5622346 Mfr # U12348.100.0001

$42.17

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ZORO SELECT #10-24 Plain Finish 18-8 Stainless Steel Tooth Washer Lock Nut, 100 pk.

Zoro # G3206743 Mfr # KEPIX-10-100P

$8.69

ZORO SELECT #4-40 Grade 2 Zinc Plated Finish Steel Tooth Washer Lock Nut, 100 pk., Nut Height: 7/64 in

Zoro # G1825187 Mfr # KEPI0-40-100P

$1.56

ZORO SELECT 3/8"-16 Plain Finish 18-8 Stainless Steel Tooth Washer Lock Nut, 25 pk., Nut Height: 11/32 in

Zoro # G0985354 Mfr # HFNIX037-025P

$11.76

Multiple Options Available

FABORY 7/8"-14 Plain Finish 18-8 Stainless Steel Nylon Insert Lock Nut, 5 pk.

Zoro # G5332957 Mfr # U51411.087.0002

$48.25

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