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    8 Products

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

    Tapered Groove

    Image of Product. Front orientation. Dowel Pins. Plain Head, Standard Tolerance, Partially Grooved, 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
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Carbon Steel
     
    3 mm Diameter
    63-0.025 to 03.2-0.05 to 0.05Tapered1,400Rockwell B683ISO 87451000000000000000
    83-0.025 to 03.2-0.05 to 0.05Tapered1,400Rockwell B684ISO 8745100000000000000
    143-0.025 to 03.2-0.05 to 0.05Reverse Tapered1,400Rockwell B687ISO 8741100000000000000
     

    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.
    Steel
    Image of Product. Front orientation. Dowel Pins. Plain Head, Standard Tolerance, 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.
    Nominal,
    mm
    Max., mm
    Lg.,
    mm
    Dia.
    Dia.
    Tolerance
    Dia.
    Dia.
    Tolerance
    Groove
    Type
    Double Shear Breaking
    Strength, lbf
    Min.
    Hardness
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Carbon Steel
     
    3 mm Diameter
    123-0.025 to 03.2-0.05 to 0.05Parallel1,400Rockwell B68ISO 8740100000000000000
     

    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 C60000000000000000000000000000
     

    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 C6000000000000000
     
    125 mm Long
    3.2000-0.008 to -0.00263Rockwell C600000000000000
     
    160 mm Long
    3.2000-0.008 to -0.00263Rockwell C6000000000000000
     
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