Are you trying to find cotter pins 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 cotter pins 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 28 hours of research and did 54 cotter pins 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 cotter pins you can buy today
- [APPLICATION]: The wire formed pins are used as a pin locking device to hold pins or castle nuts in place in automotive, axles, trailer hitch and tractors, and are highly versatile fasteners.
- [PREMIUM QUALITY]: Each high-quality pin is constructed with zinc plated steel that stands the test of time, and ensures that replacements are not needed for your fastening jobs.
- [EXTREMELY DURABLE]: The heavy duty material allows for durability while the hair pin style design gives a fast and secure hold for bolts to ensure stability.
- [SECURE DESIGN]: The specialty lock ensures a tight lasting hold and comes with a key that opens four types of lock.
- [CONVENIENCE]: Every set comes with a see-through resealable storage case storing all material together for portability, organization, and is easy to identify size markings.
- [INCLUDES]: Sizes: 150pcs- 1/16"x1" and 3/32"x 1", 100pcs 3/32"x1-1/2", 75pcs 1/8"x1-1/4", 50pcs 1/8"x 2", 30pcs 5/32"x1-1/2".
- Exquisite Material: All cotter pins split pins are made of high-quality stainless steel material, the surface and edges are smooth and burr-free, not easy to deform, wear-resistant, not easy to break, corrosion-resistant, rust-resistant, and durable for long time use.
- Cotter Pin Assortment Kit: The clip-on design of the cotter pin kit can quickly and firmly fix the bolt, not easy to loosen or fall off, ensuring stability. The cotter pin set quickly, safely and effectively locks nuts and bolts in place against relative rotation.
- Easy to Store: All cotter pins stainless steel are stored in a transparent storage box with compartments, stored separately, well organized, easy to carry and find. No mess in transit, easy access and easy size identification.
- Multi-scenario Application: Ideal replacement solution for hitch pin replacement on most equipment. Suitable for fastening bolts, used to fix cars, axles, trailer hitches, tractors, lawn mowers, machinery, workshops, garages, power equipment, small engine repairs, etc.
- Package Includes: 15 sizes, 10 pieces each size, sizes include: m1 * 8, m1 * 12, m1 * 20, m1.5 * 10, m1.5 * 16, m1.5 * 25, m2 * 10, m2 * 20, m2 * 30, m2.5 * 12, m2.5 * 20, m2.5 * 30, m3 * 12, m3 * 20, m3 * 30, a total of 150 pieces of cotter pins for trailer hitch, rich in size, the quantity is sufficient to meet your needs in different occasions and fields.
- ✅Sufficient quantity:You will receive 120pcs cotter pins and packed in the exquisite plastic box,including M1.6x25-30pcs, M2.5x25-30pcs, M2.5x30-20pcs, M3.2x30-20pcs, M3.2x40-10pcs, M4x60-10pcs
- ✅High-Quality Material: Our cotter pins are made of premium 304 stainless steel, ensuring durability and long-lasting performance. (304 stainless steel belongs to austenitic stainless steel. Austenite is partially or slightly transformed into martensite during cold heating. Martensite is magnetic, so 304 stainless steel is micro-magnetic)
- ✅Assortment of Sizes: This cotter pin set includes 6 different sizes, providing versatility and meeting various needs for securing bolts and pins in mechanical applications.
- ✅Smooth Surface: The cotter pins feature a smooth surface finish, minimizing the risk of snags or damage to the surrounding components.
- ✅Strong and Reliable: These cotter pins are designed to withstand heavy loads and provide secure fastening, ensuring the safety and reliability of your machinery or equipment.
- Package Included: 4 Pcs M1*16 mm length Cotter Pins, 4 Pcs M1.5*30mm length Cotter Pins, 4 Pcs M2*40 mm length Cotter Pins, 4 Pcs M2.5*50 mm length Cotter Pins, 4 Pcs M3*65 mm length Cotter Pins
- Quality: These high-quality trailer hitch pins are zinc plated and constructed to last a lifetime. Manufactured to ensure that long lasting life, so replacements are not needed.
- Design: These R clips adopt hairpin design, can fast, safe and effective lock bolt, prevent relative rotation, durable.
- Material: Heavy duty and zinc plated steel allows for durability and is corrosion resistant while its hair pin style design ensures fast and secure hold for bolts for greater stability.
- Versatility: Specialty lock ensures a tight fitted and lasting hold and comes with a key that opens four types of lock. Suitable for use with Tractors, Farm Equipment, Trucks, Cars, Campers, Lawn and Garden Equipment. etc.
- ☛Product Type: High quality cotter pin clip key fastner fitting assortment kit
- ☛Material: 304 Stainless Steel, Corrosion Resistant and Anti-rust, Moist Environments Can Also Be Used
- ☛ Package: 6 sizes of M1.5*25, M2.5*25, M2.5*40, M3.2*30, M3.2*40, M4*60 total 100pcs in a clear box, can meet your different needs
- ☛Product Feature: The cotter pin with hair pin style design gives fast and secure hold for bolts and pins, specialty locks to ensure tight hold that will last long
- ☛Easy To Use, Used to Automotive, Mechanics, Car Garage, Workshop, Power Equipment, Cars, Trucks, Lawn Mower, Small Engine Repair, Fastening
- No More Disappointment - Nothing is more frustrating than finding out that the nuts and bolts in your wheel-changing box aren’t the right sizes. Not anymore, carry our zinc plated cotter pin and never get stranded with a broken car again
- Every Mechanic’s Go-to - Sturdy, durable, and easy to use, cotter pins assortment that comes in a set of 100, with various size combinations making it a staple for every mechanic, RV owner, lawnmower, and biker
- Handy & Reliable Locksmiths - While ordinary pins bend and snap; our R-shaped pliable cotter pin not only stands the test but also makes locking the nuts easy, so no more replacements are needed every now and then
- Cut Yourself Some Slack - No more going through the struggle of finding the pin in the hour of need. Our pin assortment set comes in a handy plastic box with compartments to allocate each size which means you can fix broken automobiles without any hassle
- Handy Man’s Kit - Our hair styled cotter pin set has 100 pcs in a box that comes in 6 different sizes and helps with various fixing tasks related to a car garage, workshop, power equipment, cars, trucks, lawnmower, etc.
- 🚗PACKAGE CONTENT: 12 sizes 230 pieces cotter pins neatly placed in a plastic box, different sizes and enough quantities can meet your daily needs
- 🚗PRODUCT SPECIFICATION: M1.5x16(30pcs);M1.5x25(30pcs);M2x16(30pcs);M2x25(30pcs);M2.5x16(20pcs);M2.5x25(20pcs);M3x16(20pcs);M3x25(20pcs);M4x25(10pcs);M4x50(10pcs);M5x50(5pcs);M6x50(5pcs) cotter pins, total 230pcs
- 🚗PRODUCT FEATURES: Tugermoola cotter pins is with smooth surface, high strength and corrosion resistance, can play stable roles in bad environment for a long time
- 🚗WIDE APPLICATION: Our stainless steel cotter pins with hair pin style design can quickly fix various bolts and pins, widely used in repair and fastening work such as automotive, mechanics and lawn mowers
- 🚗MATERIAL: 304 stainless steel
- ✅Sufficient quantity:You will receive 200pcs cotter pins and packed in the exquisite plastic box,including cotter pins;M1.6x25-23pcs, M2.5x25-20pcs, M2.5x30-12pcs, M3.2x30-20pcs, M3.2x40-20pcs, M4x60-8pcs;R-cotter pin;1.0x16mm-20pcs,1.2x21mm-20pcs,1.6x28mm-20pcs,1.8x35mm-10pcs,2.0x40mm-10pcs,2.5x50mm-5pcs,3.0x65mm-4pcs
- ✅High-Quality Material: Our cotter pins are made of premium 304 stainless steel, ensuring durability and long-lasting performance. (304 stainless steel belongs to austenitic stainless steel. Austenite is partially or slightly transformed into martensite during cold heating. Martensite is magnetic, so 304 stainless steel is micro-magnetic)
- ✅Assortment of Sizes: This cotter pin set includes 13 different sizes, providing versatility and meeting various needs for securing bolts and pins in mechanical applications.
- ✅Smooth Surface: The cotter pins feature a smooth surface finish, minimizing the risk of snags or damage to the surrounding components.
- ✅Strong and Reliable: These cotter pins are designed to withstand heavy loads and provide secure fastening, ensuring the safety and reliability of your machinery or equipment.
- 【Larger and Thicker】Large Size: 3mm wire diameter, 60mm length.The large size perfect for trailer hitch pins. Thicker than the original pin that came with the hand truck/dolly.
- 【High Quality 4.8 Carbon Steel】R clips retaining pins are made of high-quality 4.8 carbon steel. Advanced zinc plating-black Technology effectively prevents rust and ensure smooth surface without burr. The cotter pins suitable for indoor, outdoor working environment.
- 【Strong Elastic Hairpin Design】Because of a strict metal composition and consummate casting skill, the hitch pin clips have high hardness and strong spring tension. The pin will not be easily removed when the clip is in place. Furthermore, once these are in place they last. Hairpin design: fast, Safe and effective locking bolt, uniform force, not easy to slip, used to prevent relative travel, will not fall off, easy installation and disassembly, reusable.
- 【Sturdy and Handy】Great clips,heavy weight enough. Even when you suspend a heavy RV by these, they won't shear or break, no matter how much they are pulled, yanked, twisted, or jerked. For tow bar and for other equipment around our farm. Perfect for lawn mower tire or riding mower and carts.
- 【Perfect cotter pin replacement】Replacing hitch pins on most equipment that came with weaker pins， essential for trailer ball pins，dolly pins，keeper pins， retainer pins hitch，hand truck pin replacement，tractor cotter pins，trailer pin clips，hand truck pin replacement. Applicable to all kinds of machinery, tractors, farm equipment, engines, trucks, cars, camper vans, lawn and garden equipment, etc. You can upgrade all your tractor and truck hitches.
- 【Larger and Thicker】Large Size: 3mm wire diameter, 60mm length.The large size perfect for trailer hitch pins. Thicker than the original pin that came with the hand truck/dolly.
- 【High Quality 4.8 Carbon Steel】R clips retaining pins are made of high-quality 4.8 carbon steel. Advanced Galvanizing Technology effectively prevents rust and ensure smooth surface without burr. The cotter pins suitable for indoor, outdoor working environment.
- 【Strong Elastic Hairpin Design】Because of a strict metal composition and consummate casting skill, the hitch pin clips have high hardness and strong spring tension. The pin will not be easily removed when the clip is in place. Furthermore, once these are in place they last. Hairpin design: fast, Safe and effective locking bolt, uniform force, not easy to slip, used to prevent relative travel, will not fall off, easy installation and disassembly, reusable.
- 【Sturdy and Handy】Great clips,heavy weight enough. Even when you suspend a heavy RV by these, they won't shear or break, no matter how much they are pulled, yanked, twisted, or jerked. For tow bar and for other equipment around our farm. Perfect for lawn mower tire or riding mower and carts.
- 【Perfect cotter pin replacement】Replacing hitch pins on most equipment that came with weaker pins， essential for trailer ball pins，dolly pins，keeper pins， retainer pins hitch，hand truck pin replacement，tractor cotter pins，trailer pin clips，hand truck pin replacement. Applicable to all kinds of machinery, tractors, farm equipment, engines, trucks, cars, camper vans, lawn and garden equipment, etc. You can upgrade all your tractor and truck hitches.
- Cotter Pin Clips Fastener used to secure two components where a range of movement is needed.
- MATERIAL: Made of high quality 304 stainless steel, Sturdy and durable, Corrosion resistance and anti-rust, Can also be used in moist environments.
- FEATURE: With hair pin style design, can fast, safe and effective lock bolt to prevent relative rotation, specialty locks to ensure tight hold that will last long.
- APPLICATION: Widly use in Tractors, Farm Equipment, Trucks, Cars, Campers, Lawn and Garden Equipment, and other Hitch Pin Lock Systems.
- PACKAGE: Include 5 sizes hair pin clips: 4 PCS M1.5 x 25mm, 4 PCS M 2 x 30mm, 4 PCS M2.5 x 40mm, 4 PCS M3 x 60mm, 4 PCS M4 x 80mm.
- High Quality: Crafted from premium 304 stainless steel, our cotter pins boast a smooth, burr-free surface, along with corrosion resistance and durability for long-lasting performance.
- Size & Quantity: Our assortment kit features Hairpin Cotter Pins and R Clips in various sizes. Hairpin Cotter Pins (111 pcs) include sizes from 3 x 65mm to 1 x 16mm. R Clips Cotter Pins (89 pcs) range from 4 x 60mm to 1.6 x 25mm, totaling 200 pieces. Ideal for Hitch Pin Lock Systems, Trucks, and Engine Repair.
- Product features: Hardware pins securely connect components, preventing unintended disconnection for stability in various applications.
- Convenient & practical: Each cotter pin is neatly stored in reusable containers for easy transportation and organization of diverse fastening needs.
- Versatile applications: Our cotter pin assortment kit is essential in automotive maintenance, agricultural machinery, workshops, trucks, and small engine repairs, ensuring reliable mechanical part assembly across various work fields.
- 1. Product Type: High quality cotter pin assortment kit
- 2. Material: Zinc plated steel, Corrosion-resistant to ensure long time use
- 3. Package: Include 6 widely used size of 1/16” x 1”, 3/32” x 1”, 3/32” x 1”-1/2”, 1/8” x 1-1/4”, 1/8” x 2”, 5/32” x 2-1/2”
- 4. Product Feature: The hair pin style design gives fast and secure hold for bolts and pins that way your work never gets undone
- 5. Application: Widely used for automotive, mechanics, car garage, workshop, power equipment, cars, trucks, lawn mower and etc
- Diameter: 1/8-Inch
- Length: 1-1/2-Inch
- Material: Spring Steel
- Finish: Zinc
- Type: Cotter Pin
- Diameter: 1/8"
- Length: 1-1/2 inch
- Material: Spring Steel
- Finish: Zinc
- Type: Cotter Pin
- ☛Product Type: High quality cotter pin clip key fastner fitting assortment kit,cotter pins will be a good choice to replace weaker pins on most equipment,for lost pins on your trailer, tow bar and other equipment around our farm.
- ☛Material:Heavy duty material allows for durability,not easy to rust, break or deform, polished surface and no burr, safe for your daily use.while hair pin style design gives fast and secure hold for bolts to ensure stability
- ☛Cotter Pins Set Size:This cotter pin assortment kit 6 sizes of 1/16"x1"---150pcs and 3/32"x 1"---150pcs , 3/32"x1-1/2"---100pcs, 1/8"x1-1/4"--75pcs , 1/8"x 2"--50pcs, 5/32"x1-1/2"--30pcs.Total 555pcs in a clear box,can meet your different needs.
- ☛Widely Application:Easy To Use, Used to Automotive, Mechanics, Car Garage, Workshop, Power Equipment, Cars, Trucks, Lawn Mower, Small Engine Repair, Fastening.
- ☛ 100% Satisfaction Assurance ---- We provide 24 Hour service time for you, if you come across any issues about our products, please feel free to contact me by email.
- Premium Material: This cotter pin kit is made of high-quality 304 stainless steel material with smooth surface, which is not easy to deform, wear-resistant and corrosion-resistant, durable for long time use.
- Easy to Use: The stainless steel cotter pin has a hairpin design to prevent the screw connection from loosening. The cotter pins can quickly, safely and effectively lock the bolt and prevent its relative rotation.
- Easy to Store: The roll pin assortment is a practical mechanical industrial fixture and widely used. All locking pins are packed in a storage box, which is easy to use, find, and carry.
- Wide Applications: These cotter pins can be used in automotive, mechanics, car garage, workshop, power equipment, cars, trucks, lawn mower, small engine repair and fastening, etc.
- Package Includes: You will receive a total of 290 pieces stainless steel cotter pins, in 24 sizes. When the nut is tightened, put cotter pins into nut groove and the tail hole of the bolt, and pull off the tail of the cotter pin, prevent the relative rotation of the nut and the bolt that can complete installation.
- ☛Cotter Pins Assortment Kit:Package include 2 styles of cotter pins and R hair pins, size-M1.6, M2.5, M3.2, M4, 3/32", 5/32", 5/64", 7/64", and 9/64, total 300pcs are sorted packed in a plastic box for easy store. Enough size and quantity can meet you needs for automotive, mechanics, cars, trucks, lawn mower use.
- ☛Material: All the Cotter Pins Assortment Kit are made of premium quality heavy duty steel , with zinc plated on the surface, rust and corrosion resistant, durable and steady not easy to break.
- ☛Product Feature :The cotter pin with hair pin style design gives fast and secure hold for bolts and pins, specialty locks to ensure tight hold that will last long, Heavy duty material allows for durability while hair pin style design gives fast and secure hold for bolts to ensure stability.
- ☛Easy To Organize AND Application:Cotter pin set comes with a see-through portable storage case to keep all hitch pin clips clean and organized. The sizing labels on the flip side of the container make sure that you are as organized as possible.Cotter pin and hair pin can hold for bolts and pins, used to Automotive, Mechanics, Car Garage, Workshop, Power Equipment, Cars, Trucks, Lawn Mower, Small Engine Repair & Fastening.
- ☛100% Worry-free Purchase- Our hairpin and cotter pin set ,Customers enjoy 12 months replacement and full refund guarantee. If you need any help, welcome to contact our after-sale service, Hincell provides 7/24 online service.
- Diameter: 5/32 inch
- Length: 2 inches
- Material: spring Steel
- Finish: Zinc
- Type: cotter pin
- Diameter: 5/32"
- Length: 2 inches
- Material: Spring Steel
- Finish: Zinc
- Type: Cotter Pin
- 【Packing includes】Contains 6 sizes of cotter clip: 5 Pcs M1.6 * 28, 5 Pcs M1.8 * 32, 5 Pcs M2 * 40, 5 Pcs M2.5 * 50, 5 Pcs M3 * 60, 5 Pcs M3.5 * 75, 30 Pcs in total.
- 【Material & Quality】All retaining pins are made of high quality carbon steel, galvanized surface, smooth and burr-free, rust and corrosion resistant, sturdy and durable.
- 【Design】These R type cotter pins adopt hairpin design, can fast, safe and effective lock bolt, prevent relative rotation, durable.
- 【Application】Our R Clips is widly used in lawn mowers, tractors, trucks, cars, campers, farm equipment, lawn and garden equipment, and other hitch pin lock systems. Suitable for indoor and outdoor use and humid environment.
- 【Guarantee】Your satisfaction is our goal. If you have any questions, please feel free to contact us, our after-sales team will solve it for you within 24h.
- √【Kindroufly Combination】: M1.6x25 (30 pieces), M2.5x25 (30 pieces), M2.5x40 (20 pieces), M3.2x30 (20 pieces), M3.2x40 (10 pieces), M4x60 (10 pieces) cotter pins, total 120 pieces, different sizes and enough quantities can meet your different daily needs.
- √【High Quality Stainless Steel】: Kindroufly cotter pins are made of 304 stainless steel, which have smooth surface, high strength, not easy to deform, corrosion resistance and rust resistance, can ensure a long time using in bad environment like high temperature, cold weather, and high humidity areas.
- √【Cotter Pins Kit Function】: Kindroufly cotter pins with hair pin style design gives fast and secure hold for bolts and pins, specialty locks to ensure tight hold that will last long. When the nut is tightened, put cotter pins into nut groove and the tail hole of the bolt, and pull off the tail of the cotter pin, prevent the relative rotation of the nut and the bolt that can complete installation.
- √【Multi-functional Storage Box】: All Kindroufly 120 pieces stainless steel cotter pins are packed in a solid transparent storage box. we put 6 sizes cotter pins in 5 grids , each size are marked with a clear label. It is very convenient for you to choose size, easy to carry and store, which can save your time and energy.
- √【Widely Applications】: Kindroufly 120 pieces stainless steel cotter pins assortment kit are widely used for automotive, mechanics, car garage, workshop, power equipment, cars, trucks, lawn mower, small engine repair and fastening, etc. If you have any questions about our products, welcome your inquiry and we will solve the problem for you in time.
How to choose a good cotter pins
Does the idea of finding a fantastic cotter pins 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 cotter pins. 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 cotter pins 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 cotter pins 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 cotter pins 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 cotter pins 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 cotter pins 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 cotter pins, 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 cotter pins.
Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting cotter pins 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 cotter pins. 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 cotter pins 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 cotter pins.
