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Hairpin Cotter Pins & Cotter Pins

  • Hairpin Cotters & Cotter Pins
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Cotter pins are reusable metal fasteners that are used in conjunction with clevis pins to join two machine parts or pieces of equipment. Standard cotter pins, also known as cotter keys, or split keys, are inserted through the cross-holes in clevis pins; they feature two parallel tines that are bent outward after installation to secure the pin in place. Hairpin cotter keys, also called bridge pins, hitch pins, or R-clips, consist of a single length of hardened metal wire (in a general letter “R” shape); they are inserted through cross-holes in standard clevis pines or secured around the groove in a grooved clevis pin. Cotter pins and hairpin cotter pins are ideal for quick assembly/disassembly applications.
 
Jay-Cee Sales & Rivet stocks standard cotter pins and hitch pins in a variety of sizes/diameters and lengths to meet your specific needs. All options are manufactured from corrosion resistant zinc plated steel. With more than 175 options to choose from, we’re sure to have the right cotter pin for your application. See individual product listings for additional information and specifications.
 
Follow the links below to find the cotter pins or hairpin cotter pins you need, or use the filters at left to refine your search. Order today, request a quote, or contact us for more information.

Use On Shaft Size Product Code Wire Diameter (A) (B) Weight per 100
3/16 - 1/4 HP-2102 0.042 15/16 1/4 0.10
5/16 - 3/8 HP-2104 0.073 1-7/16 3/8 0.37
3/8 - 7/16 HP-2105 0.092 1-7/8 5/8 0.87
1/2 - 5/8 HP-2106 0.120 2-3/8 23/32 1.87
5/8 - 3/4 HP-2107 0.148 2-11/16 25/32 3.13
7/8 - 1 HP-2108 0.178 3-3/4 1-1/32 5.87


 

Options for Cotter Pins & Hairpin Cotter Pins

Pin Type

  • Cotter pin
  • Hairpin cotter pin

Size

  • 1/32”
  • 3/64”
  • 1/16”
  • 5/64”
  • 3/32”
  • 7/64”
  • 1/8”
  • 9/64”
  • 5/32”
  • 3/16”
  • 7/32”
  • 1/4”
  • 5/16”
  • 3/8”
  • 7/16”
  • 1/2”
  • 5/8”
  • 3/4”

Material

  • Zinc plated steel

Wire Diameter

  • 0.042”
  • 0.073”
  • 0.092”
  • 0.120”
  • 0.148”
  • 0.178”

Length “A” (see diagram above)

  • 15/16
  • 1-7/16
  • 1-7/8
  • 2-3/8
  • 2-11/16
  • 3-3/4

Opening “B” (see diagram above)

  • 1/4
  • 3/8
  • 5/8
  • 23/32
  • 25/32
  • 1-1/32
To accompany our cotter pins and bridge pins, we offer grooved clevis pins, steel clevis pins, 18-8 stainless steel clevis pins, zinc plated clevis pins, and SAE clevis pins.

Contact Us for Cotter Pins & More

If you need cotter pins, hairpin cotter pins, clevis pins, or other top quality fastener solutions, look no further than Jay-Cee Sales & Rivet. Order the cotter pins or hairpin cotter pins you need, request a quote, or contact us.