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    11 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. Standard Tolerance, Partially Grooved, Plain Head, Half Grooved.
    Image of Product. Front orientation. Dowel Pins. Standard Tolerance, Partially Grooved, Plain Head, 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.
    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
     
    2 mm Diameter
    82-0.025 to 02.10 to 0.05Reverse Tapered600Rockwell B684ISO 87411000000000000000
     
    2.5 mm Diameter
    142.5-0.025 to 02.7-0.05 to 0.05Reverse Tapered950Rockwell B687ISO 8741100000000000000
     
    3 mm Diameter
    123-0.025 to 03.1-0.05 to 0.05Reverse Tapered1,400Rockwell B686ISO 8741100000000000000
    143-0.025 to 03.2-0.05 to 0.05Reverse Tapered1,400Rockwell B687ISO 8741100000000000000
     
    4 mm Diameter
    104-0.075 to 04.2-0.05 to 0.05Reverse Tapered1,400Rockwell B685ISO 8741100000000000000
    164-0.075 to 04.2-0.05 to 0.05Reverse Tapered2,500Rockwell B688ISO 8741100000000000000
    204-0.075 to 04.2-0.05 to 0.05Reverse Tapered2,500Rockwell B6810ISO 8741100000000000000
    304-0.075 to 04.3-0.05 to 0.05Reverse Tapered2,500Rockwell B6815ISO 8741100000000000000
     
    5 mm Diameter
    305-0.075 to 05.3-0.05 to 0.05Reverse Tapered3,900Rockwell B6815ISO 87411000000000000000
     
    6 mm Diameter
    146-0.075 to 06.2-0.05 to 0.05Reverse Tapered5,700Rockwell B687ISO 87411000000000000000
    166-0.075 to 06.2-0.05 to 0.05Reverse Tapered5,700Rockwell B688ISO 87411000000000000000
     
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