McMaster-Carr logo
    Forward
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Print
    How can we improve?
    Comments
    E-mail address (if you would like a response)
    18 Products

    Hairpin Cotter Pins

    Secure components more quickly than standard cotter pins. One prong is already bent, so just push into a hole for installation in one step. Although hairpins are reusable, they don’t withstand vibration as well as standard and hammer-set cotter pins. Also known as hitch pin clips and R-clips.
    Steel
    Image of Product. Front orientation. Contains Annotated. Cotter Pins. Hairpin Cotter Pins.
    Zinc-Plated Spring Steel—These pins withstand occasional exposure to moisture. However, since friction from moving parts can wear away the finish, they're not ideal for wet environments. While not nearly as corrosion resistant as stainless steel, they are stronger and won’t deform under stress.
    For Clevis
    Pin Dia., mm
    Wire Dia.,
    mm
    Eye Dia.,
    mm
    Lg.,
    mm
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Spring Steel
    9 to 1421057DIN 110241000000000000000
    10 to 1631872DIN 1102450000000000000
    16 to 2042074DIN 1102450000000000000
    20 to 28524102DIN 11024500000000000000
    28 to 40630126DIN 1102410000000000000
    28 to 45730127DIN 1102410000000000000
    30 to 45828132DIN 1102410000000000000
     
    Corrosion-Resistant Stainless Steel
    Image of Product. Front orientation. Contains Annotated. Cotter Pins. Hairpin Cotter Pins.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these pins resist rusting. They are strong enough to join most components but won't withstand extreme stress and vibration as well as steel.
    Super-Corrosion-Resistant 316 Stainless Steel—Superior to 18-8 stainless steel, these pins won't degrade when exposed to harsh weather, salt water, and most chemicals. They're strong enough to join most components but won't withstand extreme stress and vibration as well as steel.
    For Clevis
    Pin Dia., mm
    Wire Dia.,
    mm
    Eye Dia.,
    mm
    Lg.,
    mm
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    9 to 1421057DIN 11024100000000000000
    10 to 1631872DIN 1102410000000000000
    16 to 2042074DIN 1102410000000000000
    20 to 28524102DIN 11024100000000000000
    28 to 40630126DIN 11024100000000000000
     
    Super-Corrosion-Resistant 316 Stainless Steel
    9 to 1421048DIN 1102410000000000000
    9 to 152.51053DIN 1102410000000000000
    10 to 1631870DIN 11024100000000000000
    16 to 2042076DIN 11024100000000000000
    20 to 28524100DIN 11024100000000000000
    28 to 40630125DIN 11024100000000000000
     
    back to top