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The 8 Best tooth lock washers of 2025

Are you trying to find tooth lock washers among various brands on the market but aren’t sure where to begin? To assist you in finding the right one, we’ve put together a list of the 7 best to help you pick the perfect one!

We investigated and evaluated a number of the top-selling tooth lock washers on the market in order to create our list of the best. Making a decision among the many options available is never simple. There are an infinite number of models available, each with a distinct price. And as you’ll find out, the best options aren’t usually the ones you imagine! This comparison is rich and relevant because of the numerous factors that were employed. You will find products featured in this ranking not only based on their pricing but also on their features and other customers reviews. To write this review, we completed 18 hours of research and did 30 tooth lock washers tests. You won’t need to pick products at random any more. If you’re unsure of what to look for, browse our list and consult the buying guide!

An overview of our top picks

Table of contents

The best tooth lock washers you can buy today

SaleNo. 1
Hilitchi 400-Pcs [8-Size] 304 Stainless Steel External Internal Tooth Star Lock Washers Assortment Kit - Included: M2 M3 M4 M5 M6 M8 M10 M12
  • 【✔】High Quality Stainless Steel External Internal Tooth Star Lock Washers Assortment Set
  • 【✔】Set Includes 8 Most Used Sizes: M2(2.5) M3 M4 M5 M6 M8 M10 M12 【Metric, please See Picture 2 for Specific Dimensional Size】
  • 【✔】Made of 304 Stainless Steel Material, Very Good Corrosion Resistance, It Can Be Used in a Humid Environment
  • 【✔】Package Quantity: 400-Piece, All of Washers Will Be Packed in A Sturdy Transparent Plastic Case, Can Be Use for A Storage Box
  • 【✔】 A Lock washer exerts a spring force between the fasteners head and the substrate, which maintains the washer hard against the substrate and the bolt thread hard against the nut or substrate thread, creating more friction and resistance to rotation.
No. 2
QTEATAK 320Pcs Stainless External Multi-Tooth Star Lock Washers Assortment Set-304 Stainless Steel, 8 Size (M2.5 M3 M4 M5 M6 M8 M10 M12)
  • External Tooth Star Lock Washers: High Quality Stainless Steel External Tooth Star Lock Washers Set of 320 pcs, includes the most commonly used 8 sizes: M2.5: 50 pcs / M3: 50 pcs / M4: 50 pcs / M5: 50 pcs / M6: 50 pcs / M8: 30 pcs / M10: 20 pcs / M12: 20 pcs.
  • Features: Internal Tooth Lock Washer Star exerts a spring force between the fasteners head and the substrate, which maintains the washer hard against the substrate and the bolt thread hard against the nut or substrate thread, creating more friction and resistance to rotation.
  • Material: Made of high-quality 304 stainless steel environmentally friendly materials, high strength (not easy to deform), wear-resistant, corrosion-resistant, rust-resistant and oxidation-resistant. All gaskets will be packaged in a sturdy clear plastic box that can be used in a storage box.
  • Applications: Widely used in a variety of screw fastening applications, ideal for electrical connections in household and commercial appliances, automobiles and ships.
  • 100% SERVICE: We Promise the Premium Quality and the Best Service, If You are Not Completely Satisfied with Your Purchase Simply Let us Know.
No. 3
260pcs[9 Sizes] Black Starlock Internal Tooth Lock Washers Assortment Kit, M2/ M2.5/ M3/ M4/ M5/ M6/ M8/ M10/ M12
  • 【√√】Product name: Internal Tooth Washers
  • 【√√】Material: 65Mn Steel; √√Main Color: Black;
  • 【√√】Package: 260pcs x Starlock Washer in one storage box
  • 【√√】Include sizes: M2, M3 x 9mm, M4 x 12mm, M5 x 12mm, M6 x 16mm, M8 x 18mm, M10 x 20mm, M12 x 25mm
No. 4
HELIFOUNER 360 Pieces 9 Sizes Internal Tooth Star Lock Washers, Quick Speed Locking Washers, Push Nuts, Speed Clips Retaining Clips Fasteners Assortment Kit
  • 【Sizes】M2, M2.5, M3, M4, M5, M6, M8, M10, M12 internal tooth star lock washers, total 9 sizes 360 pieces in a transparent box, different sizes can meet your different needs. Perfect accessories of shock absorption for machinery equipment. Easy to install and durable to use
  • 【Material】High Quality 65Mn metal steel material which have good corrosion resistance in bad environment like high temperature, cold weather, and high humidity areas. They have superior rust resistance and excellent oxidation resistance, which can ensure long time using.
  • 【Function】Internal tooth star lock washers provide spring force, grip sturdy, create more friction and resistance to rotation between the fasteners head and the substrate, which maintains the washer hard against the substrate and the bolt thread hard against the nut or substrate thread, creating more friction and resistance to rotation.
  • 【Wide Applications】Widely used in machinery equipment, industrial production of shock absorption, can meet your different needs in daily life. Whenever you need us, please free to contact us, we will give you a professional service and reply you within 24 hours.
  • 【Package】360 pieces 9 sizes in total, packed in a durable transparent box with label. It is easy to distinguish the size of the product, when you want to use a certain internal tooth star lock washer, you don't have to waste time buying it separately, you can choose the suitable one to meet all your needs.
No. 5
Hilitchi 400-Pcs 304 Stainless Steel External Internal Tooth Star Lock Washers Assortment Kit - Included: M2 M3 M4 M5 M6 M8 M10 M12
  • ♛ High Quality Stainless Steel External and Internal Tooth Star Lock Washers Set
  • ♛ Set Includes 8 Most Used Sizes: M2 M2.5 M3 M4 M5 M6 M8 M10 M12
  • ♛ Made of 304 Stainless Steel Material, Very Good Corrosion Resistance, It Can Be Used in a Humid Environment.
  • ♛ Package Quantity: 400-Piece, All of Washers Will Be Packed in A Sturdy Transparent Plastic Case, Can Be Use for A Storage Box
  • ♛ Perfect for electrical connections on household and commercial appliances, automotive and marine uses in which the power source has a threaded/bolt-type connection
No. 7
wugongshan 340 Pcs Internal Tooth Starlock Locking Washers, Push On Speed Clips Fasteners Washers Assortment Kit, Quick Speed 65Mn Black Clips Lock Washers - M3, M4/M5/M6/M8/M10/M12
  • Premium Material: The Starlock tooth washers are made of 65 manganese steel material with smooth edges, which is corrosion-resistant, high and low temperature resistant and durable for long-term use.
  • Easy to Use: The starlock locking washers exert a spring force between the mounting head and the substrate, which keeps the washer firmly fixed and creates more friction and rotation resistance.
  • Easy to store: All snap rings in the circlip assortment are packed in a sturdy transparent plastic case, which is easy to use, find and transport and can also be used as a storage box.
  • Wide Applications: The Starlock car body washers with internal teeth are ideal for machine equipment, industrial production of shock absorption and insulation, good for quick repairs and make repair very easy.
  • Package Includes: You will receive 340 pieces locking washers in sizes M3, M4, M5, M6, M8, M10, M12, suitable for different sizes of fasteners, enough for your daily use.
No. 8
Internal Tooth Starlock Washers, 330PCS 8 Size Quick Speed Locking Washers, Push Nuts, 65Mn Steel Flanged M7 and Regular M3/M4/M5/M6/M8/M10/M12 Retainning Clips Fasteners Assortment Kit
  • 【TOP QUALITY 65Mn STEEL】: IEAWISL Internal Tooth Starlock Washers are made of high-quality 65Mn metal steel, which is a black oxide finish on the metal surface for anti-rust, corrosion resistance and durability. It has high hardness and good toughness that is not easily deformed in use. It can usually be locked onto materials such as plastic and steel.
  • 【TOOTH WASHERS COMPLETE SIZE】: IEAWISL Tooth Lock Washers Assortment Kit includes two types of 330pcs tooth washers: flanged (M7x15) and regular (M3x8, M4x12, M5x12, M6x14, M8x18, M10x20, M12x25). The 7 most commonly used metric size internal tooth washers can meet your different needs in daily life.
  • 【IEAWISL EXQUISITE STORAGE BOX】: High-quality internal tooth star lock washer kits are matched 1:1 by size/type and each grid of the storage box. So the various types of internal tooth washers won’t get mixed up. And the box is clearly labelled on both sides for your quick access and storage.
  • 【WIDE RANGE OF APPLICATIONS】: These Starlock Washers are widely used for machines, furniture, table, DIY, electrical, electronic equipment, automotive, sports equipment, and industrial. For example to repair ice machines, lawn mowers, tricycles, toys, old pinball machines, golf bag holders, stroller wheels, tractor emblems and fix a grill etc.
  • 【BEST AFTER-SALES SERVICE】: We provide you with a 1-year warranty, a 30-day return guarantee and 7x24 hours after-sales service, any product problems can be quickly solved for you. If you have any dissatisfaction with our products, please contact us at any time and your needs will be met.
No. 9
qxayxa 330 Pcs External Tooth Star Lock Washers, Stainless Steel External Starlock Washers Assortment Set, Tooth Locking Ring Washers Kit - M2.5 M3 M4 M5 M6 M8 M10 M12
6 Consomer Reviews
qxayxa 330 Pcs External Tooth Star Lock Washers, Stainless Steel External Starlock Washers Assortment Set, Tooth Locking Ring Washers Kit - M2.5 M3 M4 M5 M6 M8 M10 M12
  • Exquisite Material: External internal tooth starlock washers are made of high-quality stainless steel, which is strong, not easy to deform or break, resistant to corrosion and rust, and can maintain good performance in any environment and is durable.
  • External Tooth Star Lock Washers: The star-shaped configuration of lock washers provides flexibility to apply a spring force between the fastener head and the substrate and hold the bolt threads firmly and forcefully against the nut or substrate threads, thereby Creates greater rotational resistance and friction.
  • Easy to Store: All star washers are stored in a transparent and sturdy storage box with compartments. Retaining washers are stored separately, well organized, easy to carry and find. There is no confusion during transportation and it is convenient to use.
  • Wide Range of Applications: Widely used in various screw fastening applications, suitable for electrical connections in electrical appliances, automobiles and ships, valves, machinery, doors and windows and other fields.
  • Package Includes: 330 pcs in total, size includes 20 pcs m10, 30 pcs m8, 50 pcs m6, 20 pcs m12, 60 pcs m2.5, 50 pcs m3, 50 pcs m4, 50 pcs m5 , the quantity is sufficient, and the size is rich to meet the needs of different fields.
No. 10
Hillman 43803 5/16-Inch External Tooth Lock Washer, Stainless Steel, 50-Pack
14 Consomer Reviews
Hillman 43803 5/16-Inch External Tooth Lock Washer, Stainless Steel, 50-Pack
  • 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

How to choose a good tooth lock washers

Does the idea of finding a fantastic tooth lock washers make you anxious? When it comes to purchasing this product, specifically when deciding which model to select, has your head been spinning between options? You are not alone if that is the case. We are aware of the pressure involved in the purchasing process!

Your presence here indicates that you are interested in tooth lock washers. Before choosing which product would be the best for your needs after being inundated with information, locate a reliable source with genuine selections. You can get that information from a variety of sources, including buying guides and rating websites, word-of-mouth recommendations from friends and family, online discussion forums where users can share their own experiences, product reviews that can be found all over the internet, and YouTube channels. You can only get the right product through exhaustive analysis. But you realize that’s not always simple. In order to ease your concerns, we have taken the time to develop a list of the top tooth lock washers products available right now. You might be wondering how we came up with the list. How was this buying guide developed?

First, we used our algorithms to gather as much reliable data as we could about these products. To verify all the data gathered, we used both artificial intelligence and a lot of algorithms.
Then, our experts used criteria that are recognized in the business to evaluate them according to their quality to price ratio, allowing us to choose the top tooth lock washers on the market right now!

The selection of the goods is not arbitrary. Before creating a list, we take into account a number of factors. Below are some of the criteria discussed:

Brand Value: What happens if you choose a dubious brand just because it appears to be a good deal? So the likelihood of receiving a product with a short shelf life increases. That is due to the fact that well-known brands have a reputation to uphold, while others do not. Top tooth lock washers brands strive to provide some distinctive traits that set them apart from the competition. So, hopefully one or more of the items on our list will be perfect for you.

Features: Useful features are all you need, not tons of them. We consider the important aspects and select the top tooth lock washers based on those.

Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products with higher specifications, but with the right balance.

Quality: A product’s quality may always be quantified with the aid of numbers. We look for goods with better standards that strike the proper balance. The best quality product that gets highly appreciated and recommended by experienced users.

Customer ratings:  Would it be accurate to suggest that the tooth lock washers were used by hundreds of customers before you? Superior ratings indicate that many customers had better service.

Customer Reviews: Like ratings,  provide you with accurate and reliable information about the product from genuine customers. Customer ratings are very important to all of us because they contain accurate and reliable information about the customer service we received from several hundred customers.

Seller Rank: This is very intriguing! Not only do you need a good tooth lock washers, you also need a product with rising sales that is trendy. It accomplishes two goals. First, the expanding user base proves the quality of the product. Second, given that number, producers must be able to offer greater quality and after-sales support.

Value: You get what you pay for, they say, so consider the value. Cheap isn’t always good and expensive isn’t always bad. However, that does not imply that spending a lot of money on a product that is flashy but underwhelming is a good idea. Before adding them to the list, we make an effort to evaluate how much value you can get for your money from your tooth lock washers.

Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting tooth lock washers for months and years to come.

Product availability: Products come and go, and new ones replace the old ones. Most likely, a few new features and required changes were made. What use is it to use a supposedly good product if the maker no longer supports it? We make an effort to highlight products that are current and offered by one or more trustworthy sellers, if not more.

Negative Reviews: Yes, we do take that into account as well! The goods with the majority of bad reviews are filtered out and disregarded when we choose the best-rated one on the market.

These are the standards by which we selected our tooth lock washers. Do we end our process there? Hell no. The most crucial fact about us that you should be aware of is that we regularly update our website with current and pertinent information. We have one more layer of filtration since we place the greatest importance on reader satisfaction. Please let us know if any product included here is incorrect, irrelevant, subpar, or simply out of date. We always value your opinions, and we’ll work hard to make any necessary corrections to our list in response to them.

Why should you believe us?

There are now thousands of possibilities for these products on Amazon, but choosing the best one can be difficult and time-consuming. And what tooth lock washers should you purchase in 2022?

This guide is the result of more than 10 years of experience in researching, testing and writing about many topics. Each member of our team is an authority in their area. We read every article we could find online and every consumer review on every retail website for seven hours. Additionally, we discovered a ton of websites that offered helpful resources, including buying tips and thorough information on tooth lock washers.