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    30 Products

    Cotter Pins

    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
     
    3.2 mm Diameter
    10DIN 94, ISO 12345098350A62300000
    16DIN 94, ISO 12345098350A6240000
    18DIN 94, ISO 12345098350A6250000
    20DIN 94, ISO 12345098350A2600000
    25DIN 94, ISO 12342598350A2700000
    28DIN 94, ISO 12342598350A6260000
    32DIN 94, ISO 12342598350A2800000
    36DIN 94, ISO 12342598350A6270000
    40DIN 94, ISO 12342598350A2900000
    45DIN 94, ISO 12342598350A3050000
    50DIN 94, ISO 12342598350A3100000
    63DIN 94, ISO 12342598350A3300000
     
    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
     
    3.2 mm Diameter
    16DIN 94, ISO 12345098350A832000000
    18DIN 94, ISO 12345098350A66200000
    20DIN 94, ISO 12345098350A35100000
    22DIN 94, ISO 12345098350A35200000
    25DIN 94, ISO 12342598350A35500000
    32DIN 94, ISO 12342598350A36200000
    40DIN 94, ISO 12342598350A83400000
    45DIN 94, ISO 12342598350A83500000
    50DIN 94, ISO 12342598350A83600000
     

    Partially Grooved Dowel Pins

    The grooved section secures these pins while the smooth portion is free to act as a pivot or hinge. The grooves pinch shut when installed, creating tension to lock in place. They fit tighter than standard dowel pins and resist pulling from movement and vibration, even in imperfect holes.
    For the best fit, drill your hole slightly larger than the nominal diameter shown.
    Half Grooved
    Image of ProductInUse. Front orientation. Dowel Pins. Plain Head, Partially Grooved, Standard Tolerance, Half Grooved.
    Image of Product. Front orientation. Dowel Pins. Plain Head, Partially Grooved, Standard Tolerance, Half Grooved, Tapered Groove.

    Tapered Groove

    Image of Product. Front orientation. Dowel Pins. Plain Head, Partially Grooved, Standard Tolerance, Half Grooved, Reverse-Tapered Groove.

    Reverse-Tapered

    Groove

    The most versatile partially grooved pins, these are used in a range of applications, including as rod end linkages, stop pins, and locators. Also known as type H pins.
    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.
    Tapered Groove—Easier to install than pins with parallel grooves but less secure in high-vibration applications.
    Reverse-Tapered Groove—With grooves that narrow toward the end, these pins are the best for securing a stop or handle in a blind hole. They’re easier to insert than pins with parallel grooves but are less secure in high-vibration applications.
    Nominal,
    mm
    Max., mm
    Lg.,
    mm
    Dia.
    Dia.
    Tolerance
    Dia.
    Dia.
    Tolerance
    Groove Type
    Double Shear Breaking
    Strength, lbf
    Min.
    Hardness
    Groove
    Lg., mm
    Specs.
    Met
    Certificate Type
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Carbon Steel
     
    3 mm Diameter
    63-0.025 to 03.2-0.05 to 0.05Tapered1,400Rockwell B683ISO 8745Material Certificate
    		1098400A72500000
    83-0.025 to 03.2-0.05 to 0.05Tapered1,400Rockwell B684ISO 8745—1098400A7270000
    143-0.025 to 03.2-0.05 to 0.05Reverse Tapered1,400Rockwell B687ISO 8741—1098400A72100000
     

    Fully Grooved Dowel Pins

    With a tighter fit than standard dowel pins, these resist pulling from movement and vibration, even in imperfect holes. Three grooves pinch shut when installed, creating tension to lock in place. Also known as Type A pins.
    For the best fit, drill your hole slightly larger than the nominal diameter shown.
    Material Certificate Icon
    Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
    Steel
    Image of Product. Front orientation. Dowel Pins. Standard Tolerance, Plain Head, Fully Grooved, Parallel Groove.

    Parallel Groove

    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.
    Parallel Groove—Fit tighter than pins with tapered grooves to stay in place under severe vibration. However, they require more force to insert.
    Material Certificate—Pins include a report with a traceable lot number and a description of their chemical, physical, and mechanical properties.
    Nominal,
    mm
    Max., mm
    Lg.,
    mm
    Dia.
    Dia.
    Tolerance
    Dia.
    Dia.
    Tolerance
    Groove
    Type
    Double Shear Breaking
    Strength, lbf
    Min.
    Hardness
    Specs.
    Met
    Certificate Type
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Carbon Steel
     
    3 mm Diameter
    123-0.025 to 03.2-0.05 to 0.05Parallel1,400Rockwell B68ISO 8740Material Certificate
    		105429N118000000
     

    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.
    No. of
    Pieces
    Sizes Included
    Container
    Type
    Specs. Met
    Each
    Zinc-Plated Carbon Steel
    1002.5 mm to 8 mm Dia. in 20 mm to 63 mm LengthsPlastic BoxASME B18.8.200M98350A300000000
     

    Core Pins

    Image of Product. Front orientation. Core Pins. Core Pins.
    Mold plastic around these pins to form small holes, or use them to perforate parts. They have a flat head to fit into a counterbored hole. Pins can be machined to fit your application. They're precision-ground to tight tolerances.
    M2 High-Speed Tool SteelAbout M2 High-Speed Tool Steel
    M2 high-speed tool steel pins resist wear and stay sharp at high temperatures.
    Head,
    mm
    Each
    Dia.,
    mm
    Dia. Tolerance,
    mm
    Dia.
    Ht.
    Min.
    Hardness
    1-9
    10-99
    100-Up
    63 mm Long
    3.2000 to 0.00865Rockwell C6098378A168000000000000000000
     

    Ejector Pins

    Image of Product. Front orientation. Ejector Pins. Ejector Pins.
    Also known as knockout and forged pins, use these pins to push parts out of molds. Pins are precision-ground to tight tolerances and hardened for strength and wear resistance. Machining is not recommended. Metric pins meet DIN 1530 specifications.
    M2 High-Speed Tool Steel
    M2 high-speed tool steel pins withstand high temperatures.
    Head,
    mm
    Dia.,
    mm
    Dia. Tolerance,
    mm
    Dia.
    Ht.
    Min.
    Hardness
    Each
     
    100 mm Long
    3.2000-0.008 to -0.00263Rockwell C6090224A12700000
     
    125 mm Long
    3.2000-0.008 to -0.00263Rockwell C6090224A1280000
     
    160 mm Long
    3.2000-0.008 to -0.00263Rockwell C6090224A12900000
     
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