Best Hitch Locking Pins in 2026

[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.

【Value Pins】 You will get 5 pieces of M4*75mm pins, M2.8*5mm pins, M2.5*50mm pins, M2*45mm pins, M1.8*35mm pins, 1.2*21mm pins respectively. Save you more money!

【Elasticity & Hardness】 Our high quality pins are made of heavy duty carbon steel. Good elasticity, high hardness, good wear resistance, smooth surface, no burr. Strong and durable. Can be used for years without replacement.

【Waterproof & Rustproof】Corrosion and rust resistant, galvanized coating. Suitable for indoor and outdoor use and wet environment. Will not rust even after years of use.

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 50, 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

【HIGH MATERIAL HITCH PINS】: Our Hairpin Cotter Pins are made of heavy duty alloy steel plated with zinc for excellent anti-rust and corrosion resistance. The hair pin is durable, smooth surface and burr-free that ensures a long service life in any use place. The hairpin design secures the bolt quickly for stability.

【BEST COMBINATION COTTER PIN】: IEAWISL Cotter pin assortment kit consists of 6 different sizes- 1/16 x 1, 3/40 x 1-3/16, 1/10 x 1-1/2, 1/8 x 2, 11/80 x 3, 4/25 x 3. These sizes can meet your needs for almost any mechanical, automotive or small engine repair, and becomes a necessity for mechanics, caravan owner, lawnmower, and biker.

【TOP QUALITY & CONVENIENT BOX】: We want you to receive a perfect set of cotter pin assortment kit and products that don't get mixed up, so we've reinforced and thickened the inside and outside of the box. Therefore, you don't need to worry about the damage or mess of the case. We put a beautiful label on each box for you to quickly identify and store the cotter pins.

【75 Pcs in 8 Sizes】There are 8 sizes in the cotter clip assortment kit. The five hitch pin size are respectively M1x17(15Pcs),M12x21(15Pcs),M1.6x28(15Pcs),M1.8*32(10Pcs), M1.8x35(5Pcs),2x30(5Pcs),M2.5x45(5Pcs),M3*50(5Pcs). Hair Pin set contains wide range of sizes M1-M3, Rich size to meet the needs of different uses.

【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 and high temperature, high salinity 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.

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 250, 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

【38 Pcs in 5 Sizes】There are 5 sizes in the black zinc-plating cotter clip assortment kit. The five hitch pin size are respectively M1.2x21(10pcs), M1.8x32(10pcs), M2x40(10pcs), M2.5x45(4pcs), M3x60(4pcs). Hair Pin set contains wide range of sizes M1.2-M3, Rich size to meet the needs of different uses.

【High Quality 4.8 Carbon Steel】R clips retaining pins are made of high-quality 4.8 carbon steel. Black zinc-plating Technology effectively prevents rust and ensure smooth surface without burr. The cotter pins suitable for indoor, outdoor and high temperature, high salinity 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.

【Larger and Thicker】Large Size: 5mm wire diameter, 100mm length.The large size perfect for trailer hitch pins. Thicker than the original pin that came with the hand truck/dolly.

【High Quality Stainless Steel】R clips retaining pins are made of high quality 304 stainless steel. Good elasticity, smooth surface without burr. no burr, rugged and durable.High hardness, rust resistance, stainless steel material, suitable for indoor, outdoor and high temperature, high salinity 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.

Premium Material: All R cotter pins are made of excellent stainless steel material, which is rust and corrosion resistant, not easy to break, stable, sturdy and durable for long time use.

Easy to Use: The R-shaped spring cotter pins can be inserted directly into the hole to quickly and effectively lock the bolt. These cotter pins and hairpins hold the bolts firmly in place.

Easy to Store: Our R split cotter pins come with a plastic box to store all the split pins. Each size cotter pin has a small compartment to ensure different types of cotter pins don't get mixed up.

1. Made from tempered medium carbon alloy steel<br/><P/>. <br/><P/>

2. Easy to use and apply,Finish Zinc Plated <br/><P/>

3. Used for retaining clevis pins and many other uses on farm equipment, trucks, and industrial equipment where positive locking is important <br/><P/>