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Best Tooth Lock Washers - Buying Guide

Last Updated: 05/26/2024

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Bestselling Tooth Lock Washers on Amazon

  1. The Hillman Group 43803 5/16-Inch External Tooth Lock Washer, Stainless Steel, 50-Pack
  2. The Hillman Group 43794 1/4-Inch Internal Tooth Lock Washer, Stainless Steel, 50-Pack
  3. The Hillman Group 310080 1/4-Inch External Tooth Lock Washer, 100-Pack
  4. cSeao 235pcs[8 Sizes] Black Starlock Internal Tooth Lock Washers Assortment Kit, M2/ M3/ M4/ M5/ M6/...
  5. Hard-to-Find Fastener 014973239541 External Tooth Lock Washers, 5/16, Piece-100
  6. The Hillman Group 43797 1/2-Inch Internal Tooth Lock Washer, Stainless Steel, 25-Pack
  7. Hillman 300324 3/4 In.Split Lock Washer Grade 8, 20-Pack
  8. AOKOLL 350PCS Internal Tooth Star Lock Washers, Push Nuts Assortment, Press On Retaining Locking Was...
  9. uxcell M4 Star Locking Washer 3.5mm I.D. 12mm O.D. Internal Tooth Lock Washers Push-On Locking Speed...
  10. The Hillman Group 310086 3/8-Inch External Tooth Lock Washer, 100-Pack
As an Amazon Associate we earn a fee from qualifying purchases when you follow a link to Amazon from this page. We rank the products, but the links to Amazon are promotional.

  #1

The Hillman Group 43803 5/16-Inch External Tooth Lock Washer, Stainless Steel, 50-Pack

Asin: B00IZFRUIM   |   Model: 43803   |   PartNumber: 43803   |   Ean: 0008236688160   |   UPC: 008236688160

Features

  • Parts work best with large head screws such as round, pan, binding, and washer-head screws
  • Teeth used for locking & tension
  • Included variants run from #4 to 1/2 in screw size
  • Full assortment includes both internal and external variants
  • Stainless steel finish for best-in-class corrosion resistance
  • These stainless steel external toothed lock washers feature a 5/16 screw size
  • 50 pieces per retail package
  • See more on Amazon...

Included Variants Run From #4 To 1/2" In Screw Size.
50 Pieces Per Retail Package.
Stainless Steel Finish For Best-In-Class Corrosion Resistance.
These Stainless Steel External Toothed Lock Washers Feature A 5/16" Screw Size.
Full Assortment Includes Both Internal And External Variants.
Teeth Used For Locking & Tension.

Brand: Hillman   |   Manufacturer: The Hillman Group

Dimensions: 2.50 x 1.40 x 1.60 inches   |   Weight: 0.02 pounds

Amazon Price: $11.49 ($0.23 / Count) | as of 05/26/2024 (3:51pm pst) *DETAILS
Availability: In Stock

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  #2

The Hillman Group 43794 1/4-Inch Internal Tooth Lock Washer, Stainless Steel, 50-Pack

Asin: B00IZFQLLY   |   Model: 43794   |   PartNumber: 43794   |   Ean: 0008236688009   |   UPC: 008236688009

Features

  • The package length is 5.842 centimeters
  • The package height is 2.794 centimeters
  • The package width is 3.81 centimeters
  • Package Weight : 0.022 pounds
  • See more on Amazon...

The Package Width Is 3.81 Centimeters.
Package Weight : 0.022 Pounds.
The Package Height Is 2.794 Centimeters.

Brand: The Hillman Group   |   Manufacturer: The Hillman Group

Dimensions: 2.50 x 1.20 x 1.60 inches   |   Weight: 0.02 pounds

Amazon Price: $9.55 ($0.19 / Count) | as of 05/26/2024 (3:51pm pst) *DETAILS
Availability: In Stock

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  #3

The Hillman Group 310080 1/4-Inch External Tooth Lock Washer, 100-Pack

Asin: B003VFZS1M   |   Model: 310080   |   PartNumber: 310080   |   Ean: 0008236091182   |   UPC: 008236091182

Features

  • Uses External Teeth For Locking And Tension
  • These Washers Are Preferred When The Finished Appearance Is Crucial And Teeth Must Be Hidden
  • Zinc-Plated For Moderate Corrosion Resistance
  • From The Brand Name: The Hillman Group
  • See more on Amazon...

Zinc-Plated For Moderate Corrosion Resistance.
From The Brand Name: The Hillman Group.
These Washers Are Preferred When The Finished Appearance Is Crucial And Teeth Must Be Hidden.

Brand: The Hillman Group   |   Manufacturer: The Hillman Group

Dimensions: 1.56 x 2.31 x 2.68 inches

Amazon Price: $4.39 ($0.04 / Count) | as of 05/26/2024 (3:51pm pst) *DETAILS
Availability: In Stock

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  #4

cSeao 235pcs[8 Sizes] Black Starlock Internal Tooth Lock Washers Assortment Kit, M2/ M3/ M4/ M5/ M6/ M8/ M10/ M12

Asin: B07DSVK2H1   |   Model: 43398-30050   |   PartNumber: 43398-30050   |   Ean: 0613852375570   |   UPC: 613852375570

Features

  • Material: 65Mn Steel
  • Package: 235pcs x Starlock Washer in one storage box
  • Main Color: Black;
  • Include sizes: M2, M3 x 9mm, M4 x 12mm, M5 x 12mm, M6 x 16mm, M8 x 18mm, M10 x 20mm, M12 x 25mm
  • Product name: Internal Tooth Washers
  • See more on Amazon...

☞ Main Color: Black;.
☞ Product Name: Internal Tooth Washers.
☞ Include Sizes: M2, M3 X 9Mm, M4 X 12Mm, M5 X 12Mm, M6 X 16Mm, M8 X 18Mm, M10 X 20Mm, M12 X 25Mm.
☞ Package: 235Pcs X Starlock Washer In One Storage Box.

Brand: cSeao   |   Manufacturer: cSeao

Warranty: Refund or return if defect.

Amazon Price: $7.99 | as of 05/26/2024 (3:51pm pst) *DETAILS
Availability: In Stock
List Price: $9.99

See On Amazon




  #5

Hard-to-Find Fastener 014973239541 External Tooth Lock Washers, 5/16, Piece-100

Asin: B00L1J1E4A   |   Model: 014973239541   |   PartNumber: 014973239541   |   Ean: 0014973239541, 0738287039672   |   UPC: 014973239541, 738287039672

Features

  • Diameter 1: 5/16 inches
  • Diameter 2: 11/16 inches
  • Thickness: 1/16 inch
  • Material: steel
  • Finish: zinc
  • Diameter: 5/16
  • Material: Steel
  • Finish: Zinc
  • Hardness: Grade 2/A307
  • Style: External Tooth
  • See more on Amazon...

Thickness: 1/16 Inch.
Style: External Tooth.
Material: Steel.
Finish: Zinc.
Finish: Zinc.
Diameter: 5/16".
Material: Steel.
Hardness: Grade 2/A307.
Diameter 2: 11/16 Inches.

Brand: Hard-to-Find Fastener   |   Manufacturer: Hard-to-Find Fastener

Dimensions: 1.62 x 2.19 x 2.12 inches

Amazon Price: $8.99 ($0.09 / Count) | as of 05/26/2024 (3:51pm pst) *DETAILS
Availability: In Stock

See On Amazon




  #6

The Hillman Group 43797 1/2-Inch Internal Tooth Lock Washer, Stainless Steel, 25-Pack

Asin: B00IZFRNHK   |   Model: 43797   |   PartNumber: 43797   |   Ean: 0008236688061   |   UPC: 008236688061

Features

  • Parts work best with large head screws such as round, pan, binding, and washer-head screws
  • Teeth used for locking & tension
  • Included variants run from #4 to 1/2 in screw size
  • Full assortment includes both internal and external variants
  • Stainless steel finish for best-in-class corrosion resistance
  • These stainless steel internal toothed lock washers feature a 1/2 screw size
  • 25 pieces per retail package
  • See more on Amazon...

Included Variants Run From #4 To 1/2" In Screw Size.
25 Pieces Per Retail Package.
Stainless Steel Finish For Best-In-Class Corrosion Resistance.
These Stainless Steel Internal Toothed Lock Washers Feature A 1/2" Screw Size.
Full Assortment Includes Both Internal And External Variants.
Teeth Used For Locking & Tension.

Brand: The Hillman Group   |   Manufacturer: The Hillman Group

Dimensions: 2.50 x 1.30 x 1.60 inches

Amazon Price: $13.90 ($0.56 / Count) | as of 05/26/2024 (3:51pm pst) *DETAILS
Availability: In Stock

See On Amazon




  #7

Hillman 300324 3/4 In.Split Lock Washer Grade 8, 20-Pack

Asin: B000BD8M4W   |   Model: 300324   |   PartNumber: 300324   |   Ean: 0008236090833   |   UPC: 008236090833

Features

  • Hardened. Yellow dichromate. Grade 8
  • Country Of Origin: China
  • From The Brand Name: Hillman
  • Model Number: 300324
  • See more on Amazon...

From The Brand Name: Hillman.
Model Number: 300324.
Country Of Origin: China.

Brand: Hillman   |   Manufacturer: The Hillman Group

Dimensions: 2.00 x 3.00 x 3.00 inches   |   Weight: 0.00 pounds

Warranty: Warranty

Amazon Price: $13.75 | as of 05/26/2024 (3:51pm pst) *DETAILS
Availability: In Stock

See On Amazon




  #8

AOKOLL 350PCS Internal Tooth Star Lock Washers, Push Nuts Assortment, Press On Retaining Locking Washer Assortment Kit (Black)

Asin: B0CFZXMP15

Features

  • High-Quality Material: Made from 65Mn steel that resists corrosion and wear, ensuring longevity and reliability in all your applications
  • Size: Seven most commonly used metric sizes: M3, M4, M5, M6, M8, M10, and M12, ensuring you always have the right washer size at your fingertips. A must-have for both professional technicians and DIY enthusiasts
  • Organized Storage: Comes in a labeled, compartmentalized case, keeping your washers neatly organized and easily accessible for all your project needs
  • Application: Designed with sharp internal teeth, effectively bite into surfaces, preventing fasteners from rotating or loosening, especially in vibration-prone environments. Ideal for a range of applications including electrical connections, machinery, electronics, automotive, and more
  • Customer Service: 7X24 customer service to solve your problem, One-year free return for any quality problem
  • See more on Amazon...

Organized Storage: Comes In A Labeled, Compartmentalized Case, Keeping Your Washers Neatly Organized And Easily Accessible For All Your Project Needs.
Customer Service: 7X24 Customer Service To Solve Your Problem, One-Year Free Return For Any Quality Problem.
Application: Designed With Sharp Internal Teeth, Effectively Bite Into Surfaces, Preventing Fasteners From Rotating Or Loosening, Especially In Vibration-Prone Environments. Ideal For A Range Of Applications Including Electrical Connections, Machinery, Electronics, Automotive, And More.
Size: Seven Most Commonly Used Metric Sizes: M3, M4, M5, M6, M8, M10, And M12, Ensuring You Always Have The Right Washer Size At Your Fingertips. A Must-Have For Both Professional Technicians And Diy Enthusiasts.

Brand: Aokoll   |   Manufacturer: AOKOLL

Weight: 0.51 pounds

Amazon Price: $11.98 | as of 05/26/2024 (3:51pm pst) *DETAILS
Availability: In Stock

See On Amazon




  #9

uxcell M4 Star Locking Washer 3.5mm I.D. 12mm O.D. Internal Tooth Lock Washers Push-On Locking Speed Clip 65Mn Black Oxide Finish 50pcs

Asin: B07JBBSJCY   |   Model: a18082300ux0161   |   PartNumber: a18082300ux0161

Features

  • Size: M4 (I.D.: 3.5mm, O.D.: 12mm)
  • Made of 65Mn Metal Steel, Anti-corrosion and Durable
  • Great corrosion resistance for machinery equipment, easy to install
  • Provide spring force, grip sturdy, create a permanent installation
  • Widely used in machinery equipment, industrial production of shock absorption and insulation
  • See more on Amazon...

Great Corrosion Resistance For Machinery Equipment, Easy To Install.
Widely Used In Machinery Equipment, Industrial Production Of Shock Absorption And Insulation.
Provide Spring Force, Grip Sturdy, Create A Permanent Installation.
Made Of 65Mn Metal Steel, Anti-Corrosion And Durable.

Brand: uxcell   |   Manufacturer: uxcell

Dimensions: 1.97 x 5.51 x 3.94 Inches

Amazon Price: $5.99 | as of 05/26/2024 (3:51pm pst) *DETAILS
Availability: In Stock

See On Amazon




  #10

The Hillman Group 310086 3/8-Inch External Tooth Lock Washer, 100-Pack

Asin: B003VG0XY8   |   Model: 310086   |   PartNumber: 310086   |   Ean: 0008236091205   |   UPC: 008236091205

Features

  • Uses external teeth for locking and tension
  • These washers are preferred when the finished appearance is crucial and teeth must be hidden
  • Zinc-plated for moderate corrosion resistance
  • Product Dimension: 2.31 x 2.68 x 1.56
  • See more on Amazon...

Zinc-Plated For Moderate Corrosion Resistance.
Product Dimension: 2.31" X 2.68" X 1.56".
These Washers Are Preferred When The Finished Appearance Is Crucial And Teeth Must Be Hidden.

Brand: The Hillman Group   |   Manufacturer: The Hillman Group

Dimensions: 1.56 x 2.31 x 2.68 inches

Amazon Price: $8.23 ($0.08 / Count) | as of 05/26/2024 (3:51pm pst) *DETAILS
Availability: In Stock

See On Amazon






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