Hairpin Cotter Pins

Hairpin Cotter Pins, often referred to as hitch pin clips, R-clips, or R-keys, secure the ends of hitch pins by being inserted into a hole at the end of the hitch pin to eliminate the chance of the pin falling out. These are most often found securing pins in wheels, axles, rotary machines and trailer hitches.

Material

Stainless Steel

An iron based material with a minimum of 10.5% chromium. This material is known for its corrosion resistance and has varying strengths depending on the amount of chromium and nickel alloy. The chromium forms a protective layer when exposed to oxygen, keeping the steel underneath from corroding. There are over 150 grades of this material with the 304 and 316 series being the most common.
Steel

The most common material used in fasteners, this material is predominantly iron mixed with carbon. It offers the highest strength compared to other metals and elements, but is the least corrosion resistant. Also known as Carbon Steel.

Type

Hairpin Cotter Pin

Mimics a bobby pin with one continuous piece of metal formed into a large ring at the head end and a "W" form at the other. Designed to work with the groove or hole at the tip of a hitch pin. This pin locks larger pins in place.
Material: Stainless Steel
Type: Hairpin Cotter Pin
Type: Hairpin Cotter Pin
Mimics a bobby pin with one continuous piece of metal formed into a large ring at the head end and a "W" form at the other. Designed to work with the groove or hole at the tip of a hitch pin. This pin locks larger pins in place.
Diameter Length Shaft Size Finish SKU Pkg Qty Price
Diameter Length Shaft Size Finish SKU Pkg Qty Price
0.030" 19/32" 1/8" Plain 0156985 CS
0.042" 15/16" 3/16" - 1/4" Plain 0156986 CS
0.047" 19/32" 1/8" - 3/16" Plain 11121132 EA
0.054" 3/4" 3/16" - 1/4" Plain 11121142 UNT
0.059" 1-1/8" 1/4" - 5/16" Plain 0156987 CS
0.062" 1-5/16" 1/4" - 1/2" Plain 11121133 EA
0.073" 1-7/16" 5/16" - 3/8" Plain 0156988 EA
0.080" 1-3/16" 1/4" - 3/8" Plain 11121126 EA
0.080" 1-3/16" 1/4" - 3/8" Plain 11121146 EA
0.080" 1-9/16" 3/8" - 1/2" Plain 11121129 EA
0.091" 1-5/8" 5/16" - 1/2" Plain 11121115 EA
0.092" 1-7/8" 3/8" - 7/16" Plain 0156989 EA
0.093" 1-5/8" 1/4" - 1/2" Plain 11121119 EA
0.093" 2-5/16" 1/4" - 5/8" Plain 11121121 EA
0.093" 2-1/2" 3/8" - 3/4" Plain 11121127 EA
0.105" 1-1/4" 5/16" - 3/8" Plain 11121139 PKG
0.120" 2-3/8" 1/2" - 5/8" Plain 0156991 EA
1/8" 5/16" 1/8" Plain 0157005 EA
1/8" 1-15/16" 1/2" - 3/4" Plain 11121128 EA
1/8" 2-9/16" 7/16" - 3/4" Plain 11121125 EA
1/8" 2-9/16" 7/16" - 3/4" Plain 11121145 PKG
0.148" 2-11/16" 5/8" - 3/4" Plain 0156990 EA
0.148" 2-15/16" 5/8" - 1" Plain 11121124 EA
0.148" 3-5/16" 3/4" - 1-1/8" Plain 11121123 EA
0.177" 3-1/4" 5/8" - 1" Plain 11121120 EA
0.177" 3-3/4" 7/8" - 1-1/4" Plain 11121122 EA
0.178" 3-3/4" 7/8" - 1" Plain 0156992 PKG
3/8" 31/32" 3/8" Plain 0157009 EA
1/2" 1-1/8" 1/2" Plain 0157011 EA
7/8" 2-5/64" 7/8" Plain 0157014 EA
Material: Steel
Type: Hairpin Cotter Pin
Type: Hairpin Cotter Pin
Mimics a bobby pin with one continuous piece of metal formed into a large ring at the head end and a "W" form at the other. Designed to work with the groove or hole at the tip of a hitch pin. This pin locks larger pins in place.
Diameter Length Shaft Size Finish SKU Pkg Qty Price
Diameter Length Shaft Size Finish SKU Pkg Qty Price
0.035" 7/16" 1/16" Zinc 11121080 PKG
0.042" 15/16" 3/16" - 1/4" Zinc 0156979 EA
0.047" 19/32" 1/8" - 3/16" Zinc 45292 EA
0.051" 3/4" 7/64" Zinc 11121079 EA
0.054" 3/4" 3/16" - 1/4" Zinc 11121106 PKG
0.054" 31/32" 3/16" - 1/4" Zinc 11121074 EA
0.059" 1-1/8" 1/4" - 5/16" Zinc 0156980 CS
0.062" 1-5/16" 1/4" - 1/2" Zinc 11121094 EA
0.062" 1-9/16" 3/8" - 1/2" Zinc 45291 EA
0.072" 1-3/32" 5/16" - 3/8" Zinc 11121097 EA
0.072" 1-1/8" 7/64" Zinc 11121078 EA
0.072" 1-7/8" 3/8" - 1/2" Zinc 11121109 EA
0.073" 1-7/16" 5/16" - 3/8" Zinc 0156981 CS
0.080" 1-9/16" 3/8" - 1/2" Zinc 45289 EA
0.092" 1-7/8" 3/8" - 7/16" Zinc 0156982 EA
0.093" 1-1/8" 1/4" - 1/2" Zinc 11121105 PKG
0.093" 1-5/8" 1/4" - 1/2" Zinc 45281 EA
0.093" 2-5/16" 1/4" - 5/8" Zinc 45283 EA
0.093" 2-1/2" 3/8" - 3/4" Zinc 45287 EA
0.118" 3" 5/8" - 3/4" Zinc 11121110 EA
0.120" 2-3/8" 1/2" - 5/8" Zinc 0156983 EA
1/8" 5/16" 1/8" Zinc 0156993 EA
1/8" 1-9/16" 1/2" - 3/4" Zinc 11121092 EA
1/8" 1-15/16" 1/2" - 3/4" Zinc 45288 EA
1/8" 2-1/2" 5/8" - 7/8" Zinc 11121099 EA
1/8" 2-9/16" 7/16" - 3/4" Zinc 45286 EA
1/8" 3-1/8" 3/4" - 1-1/8" Zinc 11121084 EA
0.148" 2-11/16" 5/8" - 3/4" Zinc 0156984 EA
0.148" 2-15/16" 5/8" - 1" Zinc 11121087 EA
0.148" 3-5/16" 3/4" - 1-1/8" Yellow Zinc 11121176 EA
0.148" 3-5/16" 3/4" - 1-1/8" Zinc 45285 EA
0.158" 3-5/16" 7/8" - 1" Zinc 11121111 EA
0.162" 3-7/16" 1/2" x 1" - 7/8" x 1" Zinc 11121090 EA
0.177" 3-1/4" 5/8" - 1" Zinc 45282 EA
0.177" 3-1/2" 3/4" - 1-1/16" Yellow Zinc 11121179 EA
0.177" 3-1/2" 3/4" - 1-1/16" Zinc 11121101 EA
0.177" 3-3/4" 7/8" - 1-1/4" Zinc 45284 EA
0.243" 4" 3/4" - 1" Zinc 45290 EA
0.243" 5" 1-1/8" - 1-1/2" Zinc 0123598 EA
0.310" 4-1/16" 7/8" - 1" Zinc 11121093 EA
5/16" 3/4" 5/16" Zinc 0156996 EA
3/8" 31/32" 3/8" Zinc 0156997 UNT
7/16" 1-1/8" 7/16" Zinc 0156998 EA
3/4" 1-13/16" 3/4" Zinc 0157001 EA