Best Hillman Hardware 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.

Diameter: 1/2"

Length: 4-1/4 inches

Material: Steel

HIQH QUALITY - All the cotter pins are made of high quality 304 Stainless Steel, rust and corrosion resistant, durable and steady not easy to break.

SIZE & QUANTITY - 1.0x16mm(30pcs), 1.2x21mm(20pcs), 1.6x28mm(16pcs), 1.8x35mm(12pcs), 2.0x40mm(10pcs), 2.5x50mm(8pcs), 3.0x65mm(4pcs). Different sizes can meet your different daily needs.

EASY TO USE - Insert the R shape pin into hole directly and it can lock the bolt fast and effectively. It gives fast and secure hold for bolts, easy to install and remove.

【Packing includes】Contains 5 sizes of cotter clip: 32 Pcs M1.6 * 28, 20 Pcs M2 * 40, 10 Pcs M2.5 * 50, 10 Pcs M3 * 60, 8 Pcs M3.5 * 75, 80 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.

Package Included: 5 Pcs M1.2*20mm length Cotter Pins, 5 Pcs M1.5*30mm length Cotter Pins, 5 Pcs M2*40mm length Cotter Pins, 5 Pcs M2.5*55mm length Cotter Pins, 5 Pcs M3*60mm length Cotter Pins.

Feature: The cotter Pin assortment kits are made of premium quality heavy duty steel ensures a very long life of use in any workshop, no need to replace these.

Material: Made of carbon steel with zinc plated, Sturdy and durable, Corrosion resistance and anti-rust, it's suitable for indoor and outdoor use.

Use to replace worn or damaged retaining pins or bolts for securing applications

Zinc plated to resist corrosion

International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions

▶【Package Includes】24 pieces hitch pin clips, contains a wide range of sizes. 4pcs M1.2*21, 4pcs M1.6*28, 4pcs M1.8*32, 4pcs M2*40, 4pcs M2.5*50, 4pcs M3*65.

▶【 Sturdy & Durable】Cotter Pins are made of high-quality carbon steel with zinc plated, constructed to last a lifetime. Corrosion resistance and anti-rust, it can be used in moist environments.

▶【Hairpin Design】The cotter pins feature hair pin design, it can lock the bolt fast and effectively.

Package Included: 20Pcs M3*60 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.

【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.

【25/64" Diameter】: This safety coupler pin is 2-3/4" (70mm) long and 25/64" (10mm) in diameter, usable length is 2-1/4"(60mm), suitable for quick release applications in variety situations.

【Rust & Corrosion Resistant】: Made of high-quality spring carbon steel material with zinc coating, the hitch pin is rust and corrosion resistant, very durable and sturdy, fits for outdoor long-term use.

【Secure Hold】: These heavy duty safety pin are structurally strong, they are quality fasteners with strong load carrying capacity, fit for varieties of home and industrial locking applications and will hard to loosen during use.

【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.

HIGH STRENGTH - The trailer hitch pin is made of solid steel, has abrasion resistance and impact resistance, and can provide reliable, long-lasting strength. The handle of the tractor hitch pin has a red layer to enhance rust resistance and prevent it from being corroded by harsh environments.

HEAVY STRUCTURE - The heavy-duty tractor hitch pin is made of thickened material, which can withstand strong pull. Its welding place adopts superb craftsmanship for firm welding, and it is not easy to be damaged after long-term use.

SAFE DESIGN - The in-line hitch pins clips can easily and quickly clamp the hitch pins. It has a strong clamping force and is not easy to fall after fixing the hitch pins, which enhances the safety of the trailer during the towing process.

☛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.

Clevis pins are used to secure a clevis to a load by slotting through the holes on the prongs of the clevis

Commonly used on hitches and to replace bolts or rivets at connection points that require quick assembly/disassembly

Ideal for industrial applications

【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.

SBDs Quick Release Pin Tensile (3/8" Dia - 3-3/4" Locking Space) Universal World Class Weight Stack SELECTOR Key - w/Jumbo 1-3/4" Dia Round Designer KNOB |Detent Hitch PINS | Chrome PL Steel Shaft

Selector Pins for Gym Equipment

Universal Quick Acting Fastening Applications.

1.Multiple holes are designed on the product surface, Take Away The Frustration Of Finding The Exact Length With These Adjustable Clevis Pins Which Come In a Variaty of Sizes to Choose From<BR/> <p/>

2. All Our Fasteners Are Made of Top Quality Materials; <BR/> <p/>

3. Zinc Coated Steel Means They Are Sturdy And Zinc Helps The Adjustable Clevis Pins Last Longer In All Types Of Conditions; <BR/> <p/>

Hitch Pin Offering Strong Load Carrying Capacity and Impact Resistance,Rust Resistant.

SAFE DESIGN :The in-line hitch pins in place of hitch pin clip or other fasteners . is not easy to fall after fixing the hitch pins, which enhances the safety of the trailer during the towing process.

Is used to tow cargo, cranes, ships, buses, cars, trucks, ATV and other heavy items. It is widely used in construction, mechanical hardware, chemical engineering, shipbuilding industry, automobile industry, sports equipment, etc.

* High Quality Material: Made of durable carbon steel, the linchpin is tough and sturdy, not easy to deform or to be corroded, fits for long-term outdoor use.

* Secure Hold: Comes with self-locking rings, these lynch pins are structurally strong, you can snap the ring and pin into axle to tightly secure wheels or hold trailer hitch. Convenient for using and not easy to loosen.

* What You Get: Total 10pcs linchpins with ring. Pin Diameter: 6mm(6/25”), Pin Length: 45mm(1-25/32").

<b>Price For:</b> Each <b>Basic Material</b>: Steel <b>Material Grade</b>: 1038 and 4140 <b>Finish</b>: Yellow Zinc <b>Length</b>: 4-3/8 <b>Package Quantity</b>: 1 <b>Item</b>: Hitch Pin <b>Overall Length</b>: - <b>Usable Length</b>: 4 <b>Pin Item</b>: Hitch Pin <b>Shank Size (In.)</b>: 3/8 <b>Fastener Finish</b>: Zinc <b>Meets/Exceeds</b>: - <b>Pin Dia.</b>: 3/8 <b>Includes</b>: Hairpin <b>Type</b>: Standard <b>Material</b>: 1038/4140 Steel

<b>Country of Origin (subject to change)</b>: Multiple

【Valued Assortment Kit】The clevis and cotter pin assortment kit contains 36 pcs M4 *16, M4*25, M4* 35, M6*16, M6*25, M6*35, M8*16, M8*25, M8*35 single hole clevis pins and 43 pcs cotter pins and 43 pcs hitch pins, totally 122 pcs. The all-in-one tool kit will meet your different demand.

【304 Stainless Steel Material】Made of 304 Stainless Steel material with excellent performance of rust and corrosion resistance, expanding the service time. Smooth surface and no burr. Heavy duty material is safe enough to secure chair wheel, lock in oars on boat, or hold some objects in place.

【Easy to Use】Simple to Insert the cotter pin/R pin into the hole of clevis pin until the head of the pin rests against the clevis pin. Then secure the cotter pin by spreading the prongs in opposite directions. Cut excess length from either prong, according to your application standards.

【Multi-Functional Trailer Pins】: 8mm(5/16 inch) diameter and 44.5mm(1-3/4 inch) length. Total 10 pieces wire lock pins one pack. Generally used as connect pins to fix attachments in farms, lawns and gardens, trailer hitch receivers and other locking applications. Also used for trailer couplers, trailer jack wheel, pintle hook,etc.

【Special-Designed Coupler Pins】: Long ear spring retainer clip ensures the pin will not popping out and makes one-hand operation available. All you need to do is inserting the pin into the clip. | Arch retainer wire clip provides a quick latch and added clearance. Easy to use and does not break or bend.

【Quality-Material-Made Wire Lock Pin】: Solid steel pin offers strong strength and good stability. | Attached with a 10.55 inch long stainless steel wire and quick release ring for better connection.

【Premium Quality】The trailer hitch pin made of and thickened solid steel with black coating, is abrasion resistant and impact resistant. The red handle of the hitch pin covers a rubber layer that enhance rust resistance.

【Safe Design】 The hitch pins equip with R-clips that clamp the hitch pins easily and fastly. With high quality and strong clamping force, the clip is not easy to fall down when fixing the hitch pins, which ensures the safety during trailer towing.

【High Strength】 Designed to heavy duty structure, the hitch pin is heavy duty that can withstand strong pull and easy to be damaged even long-term use.

🥇 1, What You Get ------ This cotter pin assortment contains 110Pcs 7 sizes of cotter pins hairpin R clips pins, Including 110Pcs cotter pins R clips pins. That meets all your needs for any mechanical, automotive, or small engine repair. High quality 304 Stainless Steel, rust and corrosion resistant, durable and steady not easy to break.

🥇 2, 110Pcs Cotter Pins R Shape Pins ------ Insert the R shape pin into hole directly or bend the open tips to secure in place. It can lock the bolt fast and effectively, giving fast and secure hold for bolts, easy to install and remove. Made of premium quality heavy duty 304 Stainless Steel ensures a very long life of use in any workshop, no need to replace these.

🥇 3, 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.

Made of quality zinc plated steel, hair pin style design gives fast and secure hold for bolts, durable sturdy and handy, with good wear, rust and corrosion resistance.

6 common use sizes, 3/32"x 3/16", 5/64"x 5/16", 5/64"x 9/16", 3/64"x 5/8", 9/64"x 3/4", 5/32"x 5/16".

These R clips adopt hair pin design, can fast, safe and effective lock bolt, prevent relative rotation.

【QUARTITY】30 pieces hitch pin clips, contains 6 sizes. 5pcs/size (M1*17 M1.4*26 M1.5*33 M2*41 M2.4*55 M2.8*60).

【Durable】The cotter pin is made of galvanized carbon steel, which is resistant to corrosion, rust, moisture, and durable.

【Design】These pins are designed with hairpins to lock the bolts quickly and efficiently.

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/>

Multipurpose Heavy Duty Marine Lynch Pin Fastener Stainless Steel Linch Pin with Ring Clips for Boat, Bike, Tractor <BR/> <p/>

Made of Marine grade 316 stainless steel, corrosion resistance and durable .<BR/> <p/>

Economical pins , can be applied in both military and commercial equipment.<BR/> <p/>