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    100 Products

    Fully Grooved Dowel Pins
    3D CAD models available

    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. Fully Grooved Dowel Pins, Tapered Groove.

    Tapered 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.
    Tapered Groove—Easier to install than pins with parallel grooves but less secure in high-vibration applications.
    Nominal
    Max.
    Lg.
    Dia.
    Dia.
    Tolerance
    Dia.
    Dia. Tolerance
    Groove
    Type
    Min.
    Hardness
    Breaking Strength,
    lbf
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Carbon Steel
     
    3/32" Diameter
    1/4"0.094"-0.002" to 0"0.101"-0.003" to 0.003"TaperedNot Rated85025000000000000000
    1/2"0.094"-0.002" to 0"0.101"-0.003" to 0.003"TaperedNot Rated8502500000000000000
     
    1/8" Diameter
    1/2"0.125"-0.002" to 0"0.134"-0.003" to 0.003"TaperedNot Rated1,6002500000000000000
    3/4"0.125"-0.002" to 0"0.134"-0.003" to 0.003"TaperedNot Rated1,6002500000000000000
    1"0.125"-0.002" to 0"0.133"-0.003" to 0.003"TaperedNot Rated1,6002500000000000000
     
    5/32" Diameter
    1/2"0.156"-0.002" to 0"0.166"-0.003" to 0.003"TaperedNot Rated2,3002500000000000000
    3/4"0.156"-0.002" to 0"0.166"-0.003" to 0.003"TaperedNot Rated2,3002500000000000000
    1"0.156"-0.002" to 0"0.165"-0.003" to 0.003"TaperedNot Rated2,3002500000000000000
     
    3/16" Diameter
    1/2"0.188"-0.002" to 0"0.198"-0.003" to 0.003"TaperedNot Rated3,3002500000000000000
    3/4"0.188"-0.002" to 0"0.198"-0.003" to 0.003"TaperedNot Rated3,3002500000000000000
    1"0.188"-0.002" to 0"0.198"-0.003" to 0.003"TaperedNot Rated3,300100000000000000
    1 1/2"0.188"-0.002" to 0"0.197"-0.003" to 0.003"TaperedNot Rated3,3001000000000000000
     
    1/4" Diameter
    3/4"0.25"-0.002" to 0"0.263"-0.003" to 0.003"TaperedNot Rated5,8002500000000000000
    1"0.25"-0.002" to 0"0.263"-0.003" to 0.003"TaperedNot Rated5,8002500000000000000
    1 1/4"0.25"-0.002" to 0"0.263"-0.003" to 0.003"TaperedNot Rated5,800100000000000000
    1 1/2"0.25"-0.002" to 0"0.262"-0.003" to 0.003"TaperedNot Rated5,800100000000000000
     
    5/16" Diameter
    3/4"0.313"-0.002" to 0"0.329"-0.003" to 0.003"TaperedNot Rated7,600100000000000000
    1"0.313"-0.002" to 0"0.329"-0.003" to 0.003"TaperedNot Rated7,600100000000000000
    1 1/4"0.313"-0.002" to 0"0.329"-0.003" to 0.003"TaperedNot Rated7,600100000000000000
     
    3/8" Diameter
    1"0.375"-0.002" to 0"0.394"-0.003" to 0.003"TaperedNot Rated11,0001000000000000000
     

    Partially Grooved Dowel Pins
    3D CAD models available

    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. Partially Grooved Dowel Pins, Half Grooved.
    Image of Product. Back orientation. Dowel Pins. Partially Grooved Dowel Pins, Half Grooved, Parallel Groove.

    Parallel 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.
    Parallel Groove—Fit tighter than pins with tapered grooves to stay in place under severe vibration. However, they require more force to insert.
    Nominal
    Max.
    Lg.
    Dia.
    Dia.
    Tolerance
    Dia.
    Dia. Tolerance
    Groove
    Type
    Groove
    Lg.
    Min.
    Hardness
    Breaking Strength,
    lbf
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Carbon Steel
     
    3/32" Diameter
    1/4"0.094"-0.002" to 0"0.101"-0.003" to 0.003"Parallel1/8"Not Rated85025000000000000000
    1/2"0.094"-0.002" to 0"0.101"-0.003" to 0.003"Parallel1/4"Not Rated8502500000000000000
     
    1/8" Diameter
    1/2"0.125"-0.002" to 0"0.134"-0.003" to 0.003"Parallel1/4"Not Rated1,6002500000000000000
    3/4"0.125"-0.002" to 0"0.134"-0.003" to 0.003"Parallel3/8"Not Rated1,6002500000000000000
    1"0.125"-0.002" to 0"0.133"-0.003" to 0.003"Parallel1/2"Not Rated1,6002500000000000000
     
    5/32" Diameter
    1/2"0.156"-0.002" to 0"0.166"-0.003" to 0.003"Parallel1/4"Not Rated2,3002500000000000000
    3/4"0.156"-0.002" to 0"0.166"-0.003" to 0.003"Parallel3/8"Not Rated2,3002500000000000000
    1"0.156"-0.002" to 0"0.165"-0.003" to 0.003"Parallel1/2"Not Rated2,3002500000000000000
     
    3/16" Diameter
    1/2"0.188"-0.002" to 0"0.198"-0.003" to 0.003"Parallel1/4"Not Rated3,3002500000000000000
    3/4"0.188"-0.002" to 0"0.198"-0.003" to 0.003"Parallel3/8"Not Rated3,3002500000000000000
    1"0.188"-0.002" to 0"0.198"-0.003" to 0.003"Parallel1/2"Not Rated3,300100000000000000
    1 1/2"0.188"-0.002" to 0"0.197"-0.003" to 0.003"Parallel3/4"Not Rated3,3001000000000000000
     
    1/4" Diameter
    3/4"0.25"-0.002" to 0"0.263"-0.003" to 0.003"Parallel3/8"Not Rated5,8002500000000000000
    1"0.25"-0.002" to 0"0.263"-0.003" to 0.003"Parallel1/2"Not Rated5,8002500000000000000
    1 1/4"0.25"-0.002" to 0"0.263"-0.003" to 0.003"Parallel5/8"Not Rated5,800100000000000000
    1 1/2"0.25"-0.002" to 0"0.262"-0.003" to 0.003"Parallel3/4"Not Rated5,8001000000000000000
     
    5/16" Diameter
    3/4"0.313"-0.002" to 0"0.329"-0.003" to 0.003"Parallel3/8"Not Rated7,600100000000000000
    1"0.313"-0.002" to 0"0.329"-0.003" to 0.003"Parallel1/2"Not Rated7,600100000000000000
    1 1/4"0.313"-0.002" to 0"0.329"-0.003" to 0.003"Parallel5/8"Not Rated7,600100000000000000
     
    3/8" Diameter
    1"0.375"-0.002" to 0"0.394"-0.003" to 0.003"Parallel1/2"Not Rated11,0001000000000000000
     
    Center Grooved
    Image of ProductInUse. Front orientation. Dowel Pins. Partially Grooved Dowel Pins, Center Grooved.
    Image of Product. Front orientation. Dowel Pins. Partially Grooved Dowel Pins, Center Grooved, Parallel Groove.

    Parallel Groove

    These pins lock in the middle, leaving two smooth ends free. They're often used to create a T-handle, such as on a valve stem to open and close it by hand. Also known as type E 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.
    Parallel Groove—Fit tighter than pins with tapered grooves to stay in place under severe vibration. However, they require more force to insert.
    Nominal
    Max.
    Lg.
    Dia.
    Dia.
    Tolerance
    Dia.
    Dia. Tolerance
    Groove
    Type
    Groove
    Lg.
    Min.
    Hardness
    Breaking Strength,
    lbf
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Carbon Steel
     
    3/32" Diameter
    1/4"0.094"-0.002" to 0"0.101"-0.003" to 0.003"Parallel1/8"Not Rated85025000000000000000
    1/2"0.094"-0.002" to 0"0.101"-0.003" to 0.003"Parallel1/4"Not Rated8502500000000000000
     
    1/8" Diameter
    1/2"0.125"-0.002" to 0"0.134"-0.003" to 0.003"Parallel1/4"Not Rated1,6002500000000000000
    3/4"0.125"-0.002" to 0"0.134"-0.003" to 0.003"Parallel3/8"Not Rated1,6002500000000000000
    1"0.125"-0.002" to 0"0.133"-0.003" to 0.003"Parallel1/2"Not Rated1,6002500000000000000
     
    5/32" Diameter
    1/2"0.156"-0.002" to 0"0.166"-0.003" to 0.003"Parallel1/4"Not Rated2,3002500000000000000
    3/4"0.156"-0.002" to 0"0.166"-0.003" to 0.003"Parallel3/8"Not Rated2,3002500000000000000
    1"0.156"-0.002" to 0"0.165"-0.003" to 0.003"Parallel1/2"Not Rated2,3002500000000000000
     
    3/16" Diameter
    1/2"0.188"-0.002" to 0"0.198"-0.003" to 0.003"Parallel1/4"Not Rated3,3002500000000000000
    3/4"0.188"-0.002" to 0"0.198"-0.003" to 0.003"Parallel3/8"Not Rated3,3002500000000000000
    1"0.188"-0.002" to 0"0.198"-0.003" to 0.003"Parallel1/2"Not Rated3,300100000000000000
    1 1/2"0.188"-0.002" to 0"0.197"-0.003" to 0.003"Parallel3/4"Not Rated3,3001000000000000000
     
    1/4" Diameter
    3/4"0.25"-0.002" to 0"0.263"-0.003" to 0.003"Parallel3/8"Not Rated5,8002500000000000000
    1"0.25"-0.002" to 0"0.263"-0.003" to 0.003"Parallel1/2"Not Rated5,8002500000000000000
    1 1/4"0.25"-0.002" to 0"0.263"-0.003" to 0.003"Parallel5/8"Not Rated5,800100000000000000
    1 1/2"0.25"-0.002" to 0"0.262"-0.003" to 0.003"Parallel3/4"Not Rated5,800100000000000000
     
    5/16" Diameter
    3/4"0.313"-0.002" to 0"0.329"-0.003" to 0.003"Parallel3/8"Not Rated7,600100000000000000
    1"0.313"-0.002" to 0"0.329"-0.003" to 0.003"Parallel1/2"Not Rated7,600100000000000000
    1 1/4"0.313"-0.002" to 0"0.329"-0.003" to 0.003"Parallel5/8"Not Rated7,600100000000000000
     
    3/8" Diameter
    1"0.375"-0.002" to 0"0.394"-0.003" to 0.003"Parallel1/2"Not Rated11,0001000000000000000
     
    Quarter Grooved
    Image of ProductInUse. Front orientation. Dowel Pins. Partially Grooved Dowel Pins, Quarter Grooved.
    Image of Product. Front orientation. Dowel Pins. Partially Grooved Dowel Pins, Quarter Grooved, Parallel Groove.

    Parallel

    Groove

    With a longer smooth end than half-grooved dowel pins, these are often used for thicker pivoting parts, such as levers and hinges. Also known as type C 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.
    Parallel Groove—Fit tighter than pins with tapered grooves to stay in place under severe vibration. However, they require more force to insert.
    Nominal
    Max.
    Lg.
    Dia.
    Dia.
    Tolerance
    Dia.
    Dia. Tolerance
    Groove
    Type
    Groove
    Lg.
    Min.
    Hardness
    Breaking Strength,
    lbf
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Carbon Steel
     
    3/32" Diameter
    1/4"0.094"-0.002" to 0"0.101"-0.003" to 0.003"Parallel1/16"Not Rated85025000000000000000
    1/2"0.094"-0.002" to 0"0.101"-0.003" to 0.003"Parallel1/8"Not Rated8502500000000000000
     
    1/8" Diameter
    1/2"0.125"-0.002" to 0"0.134"-0.003" to 0.003"Parallel1/8"Not Rated1,6002500000000000000
    3/4"0.125"-0.002" to 0"0.134"-0.003" to 0.003"Parallel3/16"Not Rated1,6002500000000000000
    1"0.125"-0.002" to 0"0.133"-0.003" to 0.003"Parallel1/4"Not Rated1,6002500000000000000
     
    5/32" Diameter
    1/2"0.156"-0.002" to 0"0.166"-0.003" to 0.003"Parallel1/8"Not Rated2,3002500000000000000
    3/4"0.156"-0.002" to 0"0.166"-0.003" to 0.003"Parallel3/16"Not Rated2,3002500000000000000
    1"0.156"-0.002" to 0"0.165"-0.003" to 0.003"Parallel1/4"Not Rated2,3002500000000000000
     
    3/16" Diameter
    1/2"0.188"-0.002" to 0"0.198"-0.003" to 0.003"Parallel1/8"Not Rated3,3002500000000000000
    3/4"0.188"-0.002" to 0"0.198"-0.003" to 0.003"Parallel3/16"Not Rated3,3002500000000000000
    1"0.188"-0.002" to 0"0.198"-0.003" to 0.003"Parallel1/4"Not Rated3,300100000000000000
    1 1/2"0.188"-0.002" to 0"0.197"-0.003" to 0.003"Parallel3/8"Not Rated3,3001000000000000000
     
    1/4" Diameter
    3/4"0.25"-0.002" to 0"0.263"-0.003" to 0.003"Parallel3/16"Not Rated5,8002500000000000000
    1"0.25"-0.002" to 0"0.263"-0.003" to 0.003"Parallel1/4"Not Rated5,8002500000000000000
    1 1/4"0.25"-0.002" to 0"0.263"-0.003" to 0.003"Parallel5/16"Not Rated5,800100000000000000
    1 1/2"0.25"-0.002" to 0"0.262"-0.003" to 0.003"Parallel3/8"Not Rated5,8001000000000000000
     
    5/16" Diameter
    3/4"0.313"-0.002" to 0"0.329"-0.003" to 0.003"Parallel3/16"Not Rated7,600100000000000000
    1"0.313"-0.002" to 0"0.329"-0.003" to 0.003"Parallel1/4"Not Rated7,600100000000000000
    1 1/4"0.313"-0.002" to 0"0.329"-0.003" to 0.003"Parallel5/16"Not Rated7,600100000000000000
     
    3/8" Diameter
    1"0.375"-0.002" to 0"0.394"-0.003" to 0.003"Parallel1/4"Not Rated11,0001000000000000000
     

    Partially Grooved Dowel Pins with Notch
    3D CAD models available

    Slip a spring into the notch at the end of the pin. Often used in automated machinery such as conveyors and robotic arms, the pin anchors the spring in place to create tension between components. The grooved section pinches shut when installed to lock the pin in place. Grooved pins have a tighter fit than standard dowel pins and resist pulling from movement and vibration.
    For the best fit, drill your hole slightly larger than the nominal diameter shown.
    Half Grooved
    Image of ProductInUse. Front orientation. Dowel Pins. Partially Grooved Dowel Pins with Notch, Half Grooved.
    Image of Product. Front orientation. Dowel Pins. Partially Grooved Dowel Pins with Notch, Half Grooved.
    Also known as type G 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.
    Parallel Groove—Fit tighter than pins with tapered grooves to stay in place under severe vibration. However, they require more force to insert.
    Nominal
    Max.
    Lg.
    Dia.
    Dia.
    Tolerance
    Dia.
    Dia. Tolerance
    Groove
    Type
    Groove
    Lg.
    Min.
    Hardness
    Breaking Strength,
    lbf
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Carbon Steel
     
    3/32" Diameter
    1/4"0.094"-0.002" to 0"0.101"-0.003" to 0.003"Parallel1/8"Not Rated85025000000000000000
    1/2"0.094"-0.002" to 0"0.101"-0.003" to 0.003"Parallel1/4"Not Rated8502500000000000000
     
    1/8" Diameter
    1/2"0.125"-0.002" to 0"0.134"-0.003" to 0.003"Parallel1/4"Not Rated1,6002500000000000000
    3/4"0.125"-0.002" to 0"0.134"-0.003" to 0.003"Parallel3/8"Not Rated1,6002500000000000000
    1"0.125"-0.002" to 0"0.133"-0.003" to 0.003"Parallel1/2"Not Rated1,6002500000000000000
     
    5/32" Diameter
    1/2"0.156"-0.002" to 0"0.166"-0.003" to 0.003"Parallel1/4"Not Rated2,3002500000000000000
    3/4"0.156"-0.002" to 0"0.166"-0.003" to 0.003"Parallel3/8"Not Rated2,3002500000000000000
    1"0.156"-0.002" to 0"0.165"-0.003" to 0.003"Parallel1/2"Not Rated2,3002500000000000000
     
    3/16" Diameter
    1/2"0.188"-0.002" to 0"0.198"-0.003" to 0.003"Parallel1/4"Not Rated3,3002500000000000000
    3/4"0.188"-0.002" to 0"0.198"-0.003" to 0.003"Parallel3/8"Not Rated3,3002500000000000000
    1"0.188"-0.002" to 0"0.198"-0.003" to 0.003"Parallel1/2"Not Rated3,300100000000000000
    1 1/2"0.188"-0.002" to 0"0.197"-0.003" to 0.003"Parallel3/4"Not Rated3,3001000000000000000
     
    1/4" Diameter
    3/4"0.25"-0.002" to 0"0.263"-0.003" to 0.003"Parallel3/8"Not Rated5,8002500000000000000
    1"0.25"-0.002" to 0"0.263"-0.003" to 0.003"Parallel1/2"Not Rated5,8002500000000000000
    1 1/4"0.25"-0.002" to 0"0.263"-0.003" to 0.003"Parallel5/8"Not Rated5,800100000000000000
    1 1/2"0.25"-0.002" to 0"0.262"-0.003" to 0.003"Parallel3/4"Not Rated5,800100000000000000
     
    5/16" Diameter
    3/4"0.313"-0.002" to 0"0.329"-0.003" to 0.003"Parallel3/8"Not Rated7,600100000000000000
    1"0.313"-0.002" to 0"0.329"-0.003" to 0.003"Parallel1/2"Not Rated7,600100000000000000
    1 1/4"0.313"-0.002" to 0"0.329"-0.003" to 0.003"Parallel5/8"Not Rated7,600100000000000000
     
    3/8" Diameter
    1"0.375"-0.002" to 0"0.394"-0.003" to 0.003"Parallel1/2"Not Rated11,0001000000000000000
     
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