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    192 Products

    Cotter Pins
    3D CAD models available

    Lock the ends of clevis pins and shafts to keep components in place. Slide these cotter pins into a hole and then bend the prongs outward with pliers to secure. Also known as split pins, one prong is slightly longer than the other for easy opening once inserted. Repeated bending will weaken the pin, so they should not be reused.
    Steel
    Image of Product. Front orientation. Contains Annotated. Cotter Pins. 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.
    Lg.,
    mm
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Spring Steel
     
    1 mm Diameter
    8DIN 94, ISO 123420000000000000000
    10DIN 94, ISO 12342000000000000000
    12DIN 94, ISO 123420000000000000000
    16DIN 94, ISO 123420000000000000000
    20DIN 94, ISO 12342000000000000000
    25DIN 94, ISO 123420000000000000000
     
    1.6 mm Diameter
    8DIN 94, ISO 123420000000000000000
    10DIN 94, ISO 123420000000000000000
    12DIN 94, ISO 123420000000000000000
    16DIN 94, ISO 123420000000000000000
    20DIN 94, ISO 123420000000000000000
    25DIN 94, ISO 123420000000000000000
    32DIN 94, ISO 123420000000000000000
    36DIN 94, ISO 123420000000000000000
    40DIN 94, ISO 123420000000000000000
     
    2 mm Diameter
    10DIN 94, ISO 1234500000000000000
    12DIN 94, ISO 1234500000000000000
    16DIN 94, ISO 1234500000000000000
    18DIN 94, ISO 1234500000000000000
    20DIN 94, ISO 1234500000000000000
    22DIN 94, ISO 1234500000000000000
    25DIN 94, ISO 1234250000000000000
    32DIN 94, ISO 1234250000000000000
    36DIN 94, ISO 1234500000000000000
    40DIN 94, ISO 1234250000000000000
    45DIN 94, ISO 1234250000000000000
    50DIN 94, ISO 1234250000000000000
     
    2.5 mm Diameter
    16DIN 94, ISO 1234500000000000000
    20DIN 94, ISO 1234500000000000000
    25DIN 94, ISO 1234250000000000000
    32DIN 94, ISO 1234250000000000000
    36DIN 94, ISO 1234500000000000000
    40DIN 94, ISO 12342500000000000000
    45DIN 94, ISO 1234250000000000000
    50DIN 94, ISO 1234250000000000000
     
    3.2 mm Diameter
    10DIN 94, ISO 1234500000000000000
    16DIN 94, ISO 1234500000000000000
    18DIN 94, ISO 1234500000000000000
    20DIN 94, ISO 1234500000000000000
    25DIN 94, ISO 1234250000000000000
    28DIN 94, ISO 1234250000000000000
    32DIN 94, ISO 1234250000000000000
    36DIN 94, ISO 1234250000000000000
    40DIN 94, ISO 1234250000000000000
    45DIN 94, ISO 1234250000000000000
    50DIN 94, ISO 1234250000000000000
    63DIN 94, ISO 1234250000000000000
     
    4 mm Diameter
    20DIN 94, ISO 1234500000000000000
    25DIN 94, ISO 1234250000000000000
    28DIN 94, ISO 1234250000000000000
    32DIN 94, ISO 1234250000000000000
    36DIN 94, ISO 1234250000000000000
    40DIN 94, ISO 1234250000000000000
    45DIN 94, ISO 1234250000000000000
    50DIN 94, ISO 1234250000000000000
    56DIN 94, ISO 1234250000000000000
    63DIN 94, ISO 12342500000000000000
    71DIN 94, ISO 12342500000000000000
     
    5 mm Diameter
    25DIN 94, ISO 1234250000000000000
    32DIN 94, ISO 12342500000000000000
    36DIN 94, ISO 12342500000000000000
    40DIN 94, ISO 12342500000000000000
    45DIN 94, ISO 12342500000000000000
    50DIN 94, ISO 12342500000000000000
    56DIN 94, ISO 12342500000000000000
    63DIN 94, ISO 12342500000000000000
    71DIN 94, ISO 12342500000000000000
    80DIN 94, ISO 12342500000000000000
    100DIN 94, ISO 12342500000000000000
     
    6.3 mm Diameter
    40DIN 94, ISO 1234100000000000000
    50DIN 94, ISO 1234100000000000000
    56DIN 94, ISO 1234100000000000000
    63DIN 94, ISO 1234100000000000000
    71DIN 94, ISO 1234100000000000000
    80DIN 94, ISO 12341000000000000000
    90DIN 94, ISO 12341000000000000000
    100DIN 94, ISO 12341000000000000000
     
    8 mm Diameter
    40DIN 94, ISO 12341000000000000000
    45DIN 94, ISO 1234100000000000000
    50DIN 94, ISO 12341000000000000000
    56DIN 94, ISO 12341000000000000000
    63DIN 94, ISO 12341000000000000000
    71DIN 94, ISO 12341000000000000000
    80DIN 94, ISO 12341000000000000000
    90DIN 94, ISO 12341000000000000000
    100DIN 94, ISO 12341000000000000000
    125DIN 94, ISO 1234500000000000000
     
    10 mm Diameter
    63DIN 94, ISO 12341000000000000000
    71DIN 94, ISO 1234500000000000000
    80DIN 94, ISO 1234500000000000000
    90DIN 94, ISO 1234500000000000000
    100DIN 94, ISO 1234500000000000000
    125DIN 94, ISO 123410000000000000
    140DIN 94, ISO 123410000000000000
     
    13 mm Diameter
    125DIN 94, ISO 123410000000000000
    140DIN 94, ISO 123410000000000000
     
    Corrosion-Resistant Stainless Steel
    Image of Product. Front orientation. Contains Annotated. Cotter Pins. 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.
    Lg.,
    mm
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
     
    1.6 mm Diameter
    8DIN 94, ISO 123410000000000000000
    10DIN 94, ISO 12341000000000000000
    12DIN 94, ISO 12341000000000000000
    14DIN 94, ISO 123410000000000000000
    16DIN 94, ISO 12341000000000000000
    20DIN 94, ISO 12341000000000000000
    22DIN 94, ISO 123410000000000000000
    25DIN 94, ISO 123410000000000000000
    28DIN 94, ISO 123410000000000000000
     
    2 mm Diameter
    10DIN 94, ISO 12341000000000000000
    12DIN 94, ISO 123410000000000000000
    14DIN 94, ISO 123410000000000000000
    16DIN 94, ISO 123410000000000000000
    20DIN 94, ISO 123410000000000000000
    22DIN 94, ISO 123410000000000000000
    25DIN 94, ISO 123410000000000000000
    28DIN 94, ISO 123410000000000000000
    32DIN 94, ISO 12345000000000000000
    40DIN 94, ISO 12345000000000000000
     
    2.5 mm Diameter
    12DIN 94, ISO 123410000000000000000
    16DIN 94, ISO 123410000000000000000
    18DIN 94, ISO 123410000000000000000
    20DIN 94, ISO 123410000000000000000
    22DIN 94, ISO 123410000000000000000
    25DIN 94, ISO 123410000000000000000
    50DIN 94, ISO 123410000000000000000
     
    3.2 mm Diameter
    16DIN 94, ISO 12345000000000000000
    18DIN 94, ISO 12345000000000000000
    20DIN 94, ISO 12345000000000000000
    22DIN 94, ISO 12345000000000000000
    25DIN 94, ISO 12342500000000000000
    32DIN 94, ISO 12342500000000000000
    40DIN 94, ISO 1234250000000000000
    45DIN 94, ISO 12342500000000000000
    50DIN 94, ISO 12342500000000000000
     
    4 mm Diameter
    20DIN 94, ISO 12342500000000000000
    25DIN 94, ISO 12342500000000000000
    28DIN 94, ISO 12342500000000000000
    32DIN 94, ISO 12342500000000000000
    40DIN 94, ISO 12342500000000000000
    80DIN 94, ISO 12342500000000000000
     
    5 mm Diameter
    32DIN 94, ISO 12341000000000000000
    36DIN 94, ISO 12341000000000000000
    40DIN 94, ISO 12341000000000000000
    45DIN 94, ISO 12341000000000000000
    50DIN 94, ISO 12341000000000000000
    80DIN 94, ISO 12341000000000000000
     
    6.3 mm Diameter
    32DIN 94, ISO 1234500000000000000
    40DIN 94, ISO 1234500000000000000
    45DIN 94, ISO 1234500000000000000
    50DIN 94, ISO 1234500000000000000
    56DIN 94, ISO 1234500000000000000
    63DIN 94, ISO 1234500000000000000
    90DIN 94, ISO 1234500000000000000
     
    8 mm Diameter
    63DIN 94, ISO 1234500000000000000
    90DIN 94, ISO 1234500000000000000
    100DIN 94, ISO 1234500000000000000
     
    10 mm Diameter
    71DIN 94, ISO 1234500000000000000
     

    Hairpin Cotter Pins
    3D CAD models available

    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
    6 to 1121057__500000000000000
    9 to 1421057DIN 11024100000000000000
    9 to 142.51057__50000000000000
    10 to 1631872DIN 1102450000000000000
    10 to 163.51881__50000000000000
    16 to 2042074DIN 1102450000000000000
    16 to 2042199__50000000000000
    16 to 264.52197__100000000000000
    20 to 28524102__500000000000000
    20 to 28524102DIN 11024500000000000000
    28 to 40624122__500000000000000
    28 to 40630126DIN 1102410000000000000
    28 to 45730127__10000000000000
    28 to 45730127DIN 1102410000000000000
    30 to 45828132DIN 1102410000000000000
    30 to 45828136__10000000000000
     
    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
     

    Long-Life Hairpin Cotter Pins
    3D CAD models available

    You can use these pins over and over without reducing their hold, and they're quicker to install than standard cotter pins. One prong is already bent, so just push into a hole to secure parts in one step. Although the coil maintains tension, hairpins 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. Long-Life 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
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Spring Steel
    8 to 1421156100000000000000
    14 to 203177310000000000000
    17 to 244269410000000000000
    18 to 3052711010000000000000
    24 to 3663214210000000000000
    26 to 4073115210000000000000
     
    Corrosion-Resistant Stainless Steel
    Image of Product. Front orientation. Contains Annotated. Cotter Pins. Long-Life 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.
    For Clevis
    Pin Dia., mm
    Wire Dia.,
    mm
    Eye Dia.,
    mm
    Lg.,
    mm
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    8 to 1421156100000000000000
    14 to 203177310000000000000
    17 to 244269410000000000000
    24 to 36632142100000000000000
     

    Cotter Pin Assortments

    Image of Product. Front orientation. Cotter Pins. Cotter Pin Assortments.
    Image of Product. Front orientation. ZoomedIn view. Contains Annotated. Cotter Pins. Cotter Pin Assortments.
    Keep a range of sizes on hand to lock the ends of clevis pins and shafts and keep components in place. Slide these cotter pins into a hole and then bend the prongs outward with pliers to secure. Also known as split pins, one prong is slightly longer than the other for easy opening once inserted. Repeated bending will weaken the pin, so they should not be reused.
    Zinc-Plated Carbon 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.
    Sizes Included
    No. of
    Pieces
    Container
    Type
    Specs. Met
    Each
    Zinc-Plated Carbon Steel
    2.5 mm to 8 mm Dia. in 20 mm to 63 mm Lengths100Plastic BoxASME B18.8.200M000000000000000
     
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