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    199 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, Parallel Groove.

    Parallel Groove

    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.
    Parallel Groove—Fit tighter than pins with tapered grooves to stay in place under severe vibration. However, they require more force to insert.
    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
    Specs.
    Met
    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 Rated850__25000000000000000
    1/2"0.094"-0.002" to 0"0.101"-0.003" to 0.003"TaperedNot Rated850__2500000000000000
     
    1/8" Diameter
    1/2"0.125"-0.002" to 0"0.134"-0.003" to 0.003"TaperedNot Rated1,600__2500000000000000
    3/4"0.125"-0.002" to 0"0.134"-0.003" to 0.003"TaperedNot Rated1,600__2500000000000000
    1"0.125"-0.002" to 0"0.133"-0.003" to 0.003"TaperedNot Rated1,600__2500000000000000
     
    5/32" Diameter
    1/2"0.156"-0.002" to 0"0.166"-0.003" to 0.003"TaperedNot Rated2,300__2500000000000000
    3/4"0.156"-0.002" to 0"0.166"-0.003" to 0.003"TaperedNot Rated2,300__2500000000000000
    1"0.156"-0.002" to 0"0.165"-0.003" to 0.003"TaperedNot Rated2,300__2500000000000000
     
    3/16" Diameter
    1/2"0.188"-0.002" to 0"0.198"-0.003" to 0.003"TaperedNot Rated3,300__2500000000000000
    3/4"0.188"-0.002" to 0"0.198"-0.003" to 0.003"TaperedNot Rated3,300__2500000000000000
    1"0.188"-0.002" to 0"0.198"-0.003" to 0.003"TaperedNot Rated3,300__100000000000000
    1 1/2"0.188"-0.002" to 0"0.197"-0.003" to 0.003"TaperedNot Rated3,300__1000000000000000
     
    1/4" Diameter
    3/4"0.25"-0.002" to 0"0.263"-0.003" to 0.003"TaperedNot Rated5,800__2500000000000000
    1"0.25"-0.002" to 0"0.263"-0.003" to 0.003"TaperedNot Rated5,800__2500000000000000
    1 1/4"0.25"-0.002" to 0"0.263"-0.003" to 0.003"TaperedNot Rated5,800__100000000000000
    1 1/2"0.25"-0.002" to 0"0.262"-0.003" to 0.003"TaperedNot Rated5,800__1000000000000000
     
    5/16" Diameter
    3/4"0.313"-0.002" to 0"0.329"-0.003" to 0.003"TaperedNot Rated7,600__100000000000000
    1"0.313"-0.002" to 0"0.329"-0.003" to 0.003"TaperedNot Rated7,600__100000000000000
    1 1/4"0.313"-0.002" to 0"0.329"-0.003" to 0.003"TaperedNot Rated7,600__100000000000000
     
    3/8" Diameter
    1"0.375"-0.002" to 0"0.394"-0.003" to 0.003"TaperedNot Rated11,000__1000000000000000
     
    2 mm Diameter
    14 mm2 mm-0.025 mm to 0 mm2.15 mm0 mm to 0.05 mmParallelRockwell B68600ISO 874010000000000000
    14 mm2 mm-0.025 mm to 0 mm2.15 mm0 mm to 0.05 mmTaperedRockwell B68600ISO 874410000000000000
    16 mm2 mm-0.025 mm to 0 mm2.15 mm0 mm to 0.05 mmParallelRockwell B68600ISO 874010000000000000
     
    2.5 mm Diameter
    12 mm2.5 mm-0.025 mm to 0 mm2.7 mm-0.05 mm to 0.05 mmTaperedRockwell B68950ISO 874410000000000000
    18 mm2.5 mm-0.025 mm to 0 mm2.65 mm-0.05 mm to 0.05 mmTaperedRockwell B68950ISO 874410000000000000
    20 mm2.5 mm-0.025 mm to 0 mm2.65 mm-0.05 mm to 0.05 mmTaperedRockwell B68950ISO 874410000000000000
     
    3 mm Diameter
    12 mm3 mm-0.025 mm to 0 mm3.2 mm-0.05 mm to 0.05 mmParallelRockwell B681,400ISO 874010000000000000
    12 mm3 mm-0.025 mm to 0 mm3.3 mm-0.05 mm to 0.05 mmTaperedRockwell B681,400ISO 874410000000000000
     
    4 mm Diameter
    10 mm4 mm-0.075 mm to 0 mm4.3 mm-0.05 mm to 0.05 mmTaperedRockwell B681,400ISO 874410000000000000
    18 mm4 mm-0.075 mm to 0 mm4.35 mm-0.05 mm to 0.05 mmTaperedRockwell B681,400ISO 874410000000000000
    20 mm4 mm-0.075 mm to 0 mm4.25 mm-0.05 mm to 0.05 mmParallelRockwell B682,500ISO 874010000000000000
    26 mm4 mm-0.075 mm to 0 mm4.25 mm-0.05 mm to 0.05 mmParallelRockwell B682,500ISO 874010000000000000
    30 mm4 mm-0.075 mm to 0 mm4.25 mm-0.05 mm to 0.05 mmParallelRockwell B682,500ISO 874010000000000000
     
    5 mm Diameter
    16 mm5 mm-0.075 mm to 0 mm5.25 mm-0.05 mm to 0.05 mmParallelRockwell B683,900ISO 874010000000000000
    45 mm5 mm-0.075 mm to 0 mm5.25 mm-0.05 mm to 0.05 mmTaperedRockwell B683,900ISO 8744100000000000000
     
    6 mm Diameter
    20 mm6 mm-0.075 mm to 0 mm6.3 mm-0.05 mm to 0.05 mmParallelRockwell B685,700ISO 8740100000000000000
     
    Corrosion-Resistant Stainless Steel
    Image of Product. Front orientation. Dowel Pins. Fully Grooved Dowel Pins, Tapered Groove.

    Tapered Groove

    18-8 Stainless Steel—The choice for wet and outdoor environments. In addition to resisting rust, these pins also withstand mild chemicals such as cleaners and degreasers. They are strong enough to join most components but won't withstand extreme stress and vibration as well as steel.
    Tapered Groove—Easier to install than pins with parallel grooves but less secure in high-vibration applications.
    Passivated—With an added layer of protection, these pins stand up to strong acids and other harsh chemicals.
    Nominal
    Max.
    Lg.
    Dia.
    Dia.
    Tolerance
    Dia.
    Dia. Tolerance
    Groove
    Type
    Min.
    Hardness
    Breaking
    Strength
    Passivation
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
     
    3/32" Diameter
    1/4"0.094"-0.002" to 0"0.101"-0.003" to 0.003"TaperedNot RatedNot RatedPassivated1000000000000000
    1/2"0.094"-0.002" to 0"0.101"-0.003" to 0.003"TaperedNot RatedNot RatedPassivated1000000000000000
     
    1/8" Diameter
    1/2"0.125"-0.002" to 0"0.134"-0.003" to 0.003"TaperedNot RatedNot RatedPassivated1000000000000000
    3/4"0.125"-0.002" to 0"0.134"-0.003" to 0.003"TaperedNot RatedNot RatedPassivated1000000000000000
    1"0.125"-0.002" to 0"0.133"-0.003" to 0.003"TaperedNot RatedNot RatedPassivated1000000000000000
     
    5/32" Diameter
    1/2"0.156"-0.002" to 0"0.166"-0.003" to 0.003"TaperedNot RatedNot RatedPassivated500000000000000
    3/4"0.156"-0.002" to 0"0.166"-0.003" to 0.003"TaperedNot RatedNot RatedPassivated500000000000000
    1"0.156"-0.002" to 0"0.165"-0.003" to 0.003"TaperedNot RatedNot RatedPassivated500000000000000
     
    3/16" Diameter
    1/2"0.188"-0.002" to 0"0.198"-0.003" to 0.003"TaperedNot RatedNot RatedPassivated1000000000000000
    3/4"0.188"-0.002" to 0"0.198"-0.003" to 0.003"TaperedNot RatedNot RatedPassivated1000000000000000
    1"0.188"-0.002" to 0"0.198"-0.003" to 0.003"TaperedNot RatedNot RatedPassivated1000000000000000
    1 1/2"0.188"-0.002" to 0"0.197"-0.003" to 0.003"TaperedNot RatedNot RatedPassivated50000000000000
     
    1/4" Diameter
    3/4"0.25"-0.002" to 0"0.263"-0.003" to 0.003"TaperedNot RatedNot RatedPassivated50000000000000
    1"0.25"-0.002" to 0"0.263"-0.003" to 0.003"TaperedNot RatedNot RatedPassivated500000000000000
    1 1/4"0.25"-0.002" to 0"0.263"-0.003" to 0.003"TaperedNot RatedNot RatedPassivated500000000000000
    1 1/2"0.25"-0.002" to 0"0.262"-0.003" to 0.003"TaperedNot RatedNot RatedPassivated500000000000000
     
    5/16" Diameter
    1"0.313"-0.002" to 0"0.329"-0.003" to 0.003"TaperedNot RatedNot RatedPassivated500000000000000
    1 1/4"0.313"-0.002" to 0"0.329"-0.003" to 0.003"TaperedNot RatedNot RatedPassivated500000000000000
     
    3/8" Diameter
    1"0.375"-0.002" to 0"0.394"-0.003" to 0.003"TaperedNot RatedNot RatedPassivated50000000000000
     

    Fully Grooved Dowel Pins with Rounded Head
    3D CAD models available

    The domed head creates a finished appearance, so these pins are often used to attach brackets, knobs, and machine plates. The grooves pinch shut when you press pins into a hole, creating tension to lock them in place.
    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 with Rounded Head.
    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.
    Head
    Lg.
    Dia.
    Dia.
    Tolerance
    Dia.
    Dia. Tolerance
    Groove
    Type
    Dia.
    Ht.
    Min.
    Hardness
    Breaking
    Strength
    Specs. Met
    Each
    Zinc-Plated Carbon Steel
    1/4"0.086"-0.002" to 0"0.096"-0.002" to 0.002"Parallel0.154"0.065"Not RatedNot RatedASME B18.8.200000000000000
    1/4"0.104"-0.002" to 0"0.113"-0.002" to 0.002"Parallel0.202"0.08"Not RatedNot RatedASME B18.8.20000000000000
    3/8"0.086"-0.002" to 0"0.096"-0.002" to 0.002"Parallel0.154"0.065"Not RatedNot RatedASME B18.8.20000000000000
    3/8"0.104"-0.002" to 0"0.113"-0.002" to 0.002"Parallel0.202"0.08"Not RatedNot RatedASME B18.8.20000000000000
    3/8"0.12"-0.002" to 0"0.13"-0.002" to 0.002"Parallel0.25"0.097"Not RatedNot RatedASME B18.8.20000000000000
    3/8"0.144"-0.002" to 0"0.153"-0.002" to 0.002"Parallel0.298"0.113"Not RatedNot RatedASME B18.8.20000000000000
    1/2"0.086"-0.002" to 0"0.096"-0.002" to 0.002"Parallel0.154"0.065"Not RatedNot RatedASME B18.8.20000000000000
    1/2"0.104"-0.002" to 0"0.113"-0.002" to 0.002"Parallel0.202"0.08"Not RatedNot RatedASME B18.8.20000000000000
    1/2"0.12"-0.002" to 0"0.13"-0.002" to 0.002"Parallel0.25"0.097"Not RatedNot RatedASME B18.8.20000000000000
    1/2"0.144"-0.002" to 0"0.155"-0.002" to 0.002"Parallel0.298"0.113"Not RatedNot RatedASME B18.8.20000000000000
    1/2"0.161"-0.002" to 0"0.171"-0.002" to 0.002"Parallel0.347"0.13"Not RatedNot RatedASME B18.8.20000000000000
    1/2"0.196"-0.002" to 0"0.206"-0.002" to 0.002"Parallel0.395"0.146"Not RatedNot RatedASME B18.8.20000000000000
    5/8"0.12"-0.002" to 0"0.13"-0.002" to 0.002"Parallel0.25"0.097"Not RatedNot RatedASME B18.8.20000000000000
    5/8"0.144"-0.002" to 0"0.155"-0.002" to 0.002"Parallel0.298"0.113"Not RatedNot RatedASME B18.8.20000000000000
    3/4"0.161"-0.002" to 0"0.171"-0.002" to 0.002"Parallel0.347"0.13"Not RatedNot RatedASME B18.8.20000000000000
    3/4"0.196"-0.002" to 0"0.201"-0.002" to 0.002"Parallel0.395"0.146"Not RatedNot RatedASME B18.8.20000000000000
    1"0.161"-0.002" to 0"0.171"-0.002" to 0.002"Parallel0.347"0.13"Not RatedNot RatedASME B18.8.20000000000000
    1"0.196"-0.002" to 0"0.201"-0.002" to 0.002"Parallel0.395"0.146"Not RatedNot RatedASME B18.8.20000000000000
     

    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.
    Image of Product. Front orientation. Dowel Pins. Partially Grooved Dowel Pins, Half Grooved, Tapered Groove.

    Parallel Groove

    Tapered Groove

    Image of Product. Front orientation. Dowel Pins. Partially Grooved Dowel Pins, 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.
    Parallel Groove—Fit tighter than pins with tapered grooves to stay in place under severe vibration. However, they require more force to insert.
    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
    Max.
    Lg.
    Dia.
    Dia. Tolerance
    Dia.
    Dia. Tolerance
    Groove Type
    Groove
    Lg.
    Min.
    Hardness
    Breaking Strength,
    lbf
    Specs.
    Met
    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 Rated850__25000000000000000
    1/2"0.094"-0.002" to 0"0.101"-0.003" to 0.003"Parallel1/4"Not Rated850__2500000000000000
     
    1/8" Diameter
    1/2"0.125"-0.002" to 0"0.134"-0.003" to 0.003"Parallel1/4"Not Rated1,600__2500000000000000
    3/4"0.125"-0.002" to 0"0.134"-0.003" to 0.003"Parallel3/8"Not Rated1,600__2500000000000000
    1"0.125"-0.002" to 0"0.133"-0.003" to 0.003"Parallel1/2"Not Rated1,600__2500000000000000
     
    5/32" Diameter
    1/2"0.156"-0.002" to 0"0.166"-0.003" to 0.003"Parallel1/4"Not Rated2,300__2500000000000000
    3/4"0.156"-0.002" to 0"0.166"-0.003" to 0.003"Parallel3/8"Not Rated2,300__2500000000000000
    1"0.156"-0.002" to 0"0.165"-0.003" to 0.003"Parallel1/2"Not Rated2,300__2500000000000000
     
    3/16" Diameter
    1/2"0.188"-0.002" to 0"0.198"-0.003" to 0.003"Parallel1/4"Not Rated3,300__2500000000000000
    3/4"0.188"-0.002" to 0"0.198"-0.003" to 0.003"Parallel3/8"Not Rated3,300__2500000000000000
    1"0.188"-0.002" to 0"0.198"-0.003" to 0.003"Parallel1/2"Not Rated3,300__100000000000000
    1 1/2"0.188"-0.002" to 0"0.197"-0.003" to 0.003"Parallel3/4"Not Rated3,300__1000000000000000
     
    1/4" Diameter
    3/4"0.25"-0.002" to 0"0.263"-0.003" to 0.003"Parallel3/8"Not Rated5,800__2500000000000000
    1"0.25"-0.002" to 0"0.263"-0.003" to 0.003"Parallel1/2"Not Rated5,800__2500000000000000
    1 1/4"0.25"-0.002" to 0"0.263"-0.003" to 0.003"Parallel5/8"Not Rated5,800__100000000000000
    1 1/2"0.25"-0.002" to 0"0.262"-0.003" to 0.003"Parallel3/4"Not Rated5,800__1000000000000000
     
    5/16" Diameter
    3/4"0.313"-0.002" to 0"0.329"-0.003" to 0.003"Parallel3/8"Not Rated7,600__100000000000000
    1"0.313"-0.002" to 0"0.329"-0.003" to 0.003"Parallel1/2"Not Rated7,600__100000000000000
    1 1/4"0.313"-0.002" to 0"0.329"-0.003" to 0.003"Parallel5/8"Not Rated7,600__100000000000000
     
    3/8" Diameter
    1"0.375"-0.002" to 0"0.394"-0.003" to 0.003"Parallel1/2"Not Rated11,000__1000000000000000
     
    2 mm Diameter
    8 mm2 mm-0.025 mm to 0 mm2.1 mm0 mm to 0.05 mmReverse Tapered4 mmRockwell B68600ISO 8741100000000000000
    10 mm2 mm-0.025 mm to 0 mm2.2 mm0 mm to 0.05 mmTapered5 mmRockwell B68600ISO 8745100000000000000
    14 mm2 mm-0.025 mm to 0 mm2.2 mm0 mm to 0.05 mmTapered7 mmRockwell B68600ISO 8745100000000000000
     
    2.5 mm Diameter
    6 mm2.5 mm-0.025 mm to 0 mm2.7 mm-0.05 mm to 0.05 mmTapered3 mmRockwell B68950ISO 8745100000000000000
    10 mm2.5 mm-0.025 mm to 0 mm2.7 mm-0.05 mm to 0.05 mmTapered5 mmRockwell B68950ISO 8745100000000000000
    14 mm2.5 mm-0.025 mm to 0 mm2.7 mm-0.05 mm to 0.05 mmReverse Tapered7 mmRockwell B68950ISO 8741100000000000000
     
    3 mm Diameter
    6 mm3 mm-0.025 mm to 0 mm3.2 mm-0.05 mm to 0.05 mmTapered3 mmRockwell B681,400ISO 8745100000000000000
    8 mm3 mm-0.025 mm to 0 mm3.2 mm-0.05 mm to 0.05 mmTapered4 mmRockwell B681,400ISO 8745100000000000000
    12 mm3 mm-0.025 mm to 0 mm3.1 mm-0.05 mm to 0.05 mmReverse Tapered6 mmRockwell B681,400ISO 8741100000000000000
    12 mm3 mm-0.025 mm to 0 mm3.3 mm-0.05 mm to 0.05 mmTapered6 mmRockwell B681,400ISO 8745100000000000000
    14 mm3 mm-0.025 mm to 0 mm3.2 mm-0.05 mm to 0.05 mmReverse Tapered7 mmRockwell B681,400ISO 8741100000000000000
    20 mm3 mm-0.025 mm to 0 mm3.3 mm-0.05 mm to 0.05 mmTapered10 mmRockwell B681,400ISO 8745100000000000000
    24 mm3 mm-0.025 mm to 0 mm3.3 mm-0.05 mm to 0.05 mmTapered12 mmRockwell B681,400ISO 8745100000000000000
    26 mm3 mm-0.025 mm to 0 mm3.3 mm-0.05 mm to 0.05 mmTapered13 mmRockwell B681,400ISO 8745100000000000000
     
    4 mm Diameter
    10 mm4 mm-0.075 mm to 0 mm4.2 mm-0.05 mm to 0.05 mmReverse Tapered5 mmRockwell B681,400ISO 8741100000000000000
    10 mm4 mm-0.075 mm to 0 mm4.3 mm-0.05 mm to 0.05 mmTapered5 mmRockwell B682,500ISO 8745100000000000000
    16 mm4 mm-0.075 mm to 0 mm4.2 mm-0.05 mm to 0.05 mmReverse Tapered8 mmRockwell B682,500ISO 8741100000000000000
    20 mm4 mm-0.075 mm to 0 mm4.2 mm-0.05 mm to 0.05 mmReverse Tapered10 mmRockwell B682,500ISO 8741100000000000000
    30 mm4 mm-0.075 mm to 0 mm4.3 mm-0.05 mm to 0.05 mmReverse Tapered15 mmRockwell B682,500ISO 8741100000000000000
     
    5 mm Diameter
    16 mm5 mm-0.075 mm to 0 mm5.3 mm-0.05 mm to 0.05 mmTapered8 mmRockwell B683,900ISO 8745100000000000000
    18 mm5 mm-0.075 mm to 0 mm5.3 mm-0.05 mm to 0.05 mmTapered9 mmRockwell B683,900ISO 87451000000000000000
    30 mm5 mm-0.075 mm to 0 mm5.3 mm-0.05 mm to 0.05 mmReverse Tapered15 mmRockwell B683,900ISO 87411000000000000000
    30 mm5 mm-0.075 mm to 0 mm5.4 mm-0.05 mm to 0.05 mmTapered15 mmRockwell B683,900ISO 87451000000000000000
     
    6 mm Diameter
    12 mm6 mm-0.075 mm to 0 mm6.3 mm-0.05 mm to 0.05 mmTapered6 mmRockwell B685,700ISO 87451000000000000000
    14 mm6 mm-0.075 mm to 0 mm6.2 mm-0.05 mm to 0.05 mmReverse Tapered7 mmRockwell B685,700ISO 87411000000000000000
    16 mm6 mm-0.075 mm to 0 mm6.2 mm-0.05 mm to 0.05 mmReverse Tapered8 mmRockwell B685,700ISO 87411000000000000000
    20 mm6 mm-0.075 mm to 0 mm6.3 mm-0.05 mm to 0.05 mmTapered10 mmRockwell B685,700ISO 87451000000000000000
    26 mm6 mm-0.075 mm to 0 mm6.4 mm-0.05 mm to 0.05 mmTapered13 mmRockwell B685,700ISO 87451000000000000000
    30 mm6 mm-0.075 mm to 0 mm6.4 mm-0.05 mm to 0.05 mmTapered15 mmRockwell B685,700ISO 87451000000000000000
    40 mm6 mm-0.075 mm to 0 mm6.4 mm-0.05 mm to 0.05 mmTapered20 mmRockwell B685,700ISO 87451000000000000000
     
    8 mm Diameter
    16 mm8 mm-0.09 mm to 0 mm8.3 mm-0.05 mm to 0.05 mmTapered8 mmRockwell B6810,100ISO 8745500000000000000
     
    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
    Specs.
    Met
    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 Rated850__25000000000000000
    1/2"0.094"-0.002" to 0"0.101"-0.003" to 0.003"Parallel1/4"Not Rated850__2500000000000000
     
    1/8" Diameter
    1/2"0.125"-0.002" to 0"0.134"-0.003" to 0.003"Parallel1/4"Not Rated1,600__2500000000000000
    3/4"0.125"-0.002" to 0"0.134"-0.003" to 0.003"Parallel3/8"Not Rated1,600__2500000000000000
    1"0.125"-0.002" to 0"0.133"-0.003" to 0.003"Parallel1/2"Not Rated1,600__2500000000000000
     
    5/32" Diameter
    1/2"0.156"-0.002" to 0"0.166"-0.003" to 0.003"Parallel1/4"Not Rated2,300__2500000000000000
    3/4"0.156"-0.002" to 0"0.166"-0.003" to 0.003"Parallel3/8"Not Rated2,300__2500000000000000
    1"0.156"-0.002" to 0"0.165"-0.003" to 0.003"Parallel1/2"Not Rated2,300__2500000000000000
     
    3/16" Diameter
    1/2"0.188"-0.002" to 0"0.198"-0.003" to 0.003"Parallel1/4"Not Rated3,300__2500000000000000
    3/4"0.188"-0.002" to 0"0.198"-0.003" to 0.003"Parallel3/8"Not Rated3,300__2500000000000000
    1"0.188"-0.002" to 0"0.198"-0.003" to 0.003"Parallel1/2"Not Rated3,300__100000000000000
    1 1/2"0.188"-0.002" to 0"0.197"-0.003" to 0.003"Parallel3/4"Not Rated3,300__1000000000000000
     
    1/4" Diameter
    3/4"0.25"-0.002" to 0"0.263"-0.003" to 0.003"Parallel3/8"Not Rated5,800__2500000000000000
    1"0.25"-0.002" to 0"0.263"-0.003" to 0.003"Parallel1/2"Not Rated5,800__2500000000000000
    1 1/4"0.25"-0.002" to 0"0.263"-0.003" to 0.003"Parallel5/8"Not Rated5,800__100000000000000
    1 1/2"0.25"-0.002" to 0"0.262"-0.003" to 0.003"Parallel3/4"Not Rated5,800__1000000000000000
     
    5/16" Diameter
    3/4"0.313"-0.002" to 0"0.329"-0.003" to 0.003"Parallel3/8"Not Rated7,600__100000000000000
    1"0.313"-0.002" to 0"0.329"-0.003" to 0.003"Parallel1/2"Not Rated7,600__100000000000000
    1 1/4"0.313"-0.002" to 0"0.329"-0.003" to 0.003"Parallel5/8"Not Rated7,600__100000000000000
     
    3/8" Diameter
    1"0.375"-0.002" to 0"0.394"-0.003" to 0.003"Parallel1/2"Not Rated11,000__1000000000000000
     
    2 mm Diameter
    12 mm2 mm-0.025 mm to 0 mm2.1 mm0 mm to 0.05 mmParallel4 mmRockwell B68600ISO 874210000000000000
     
    2.5 mm Diameter
    24 mm2.5 mm-0.025 mm to 0 mm2.65 mm-0.05 mm to 0.05 mmParallel8 mmRockwell B68950ISO 874210000000000000
     
    3 mm Diameter
    12 mm3 mm-0.025 mm to 0 mm3.1 mm-0.05 mm to 0.05 mmParallel4 mmRockwell B681,400ISO 874210000000000000
    14 mm3 mm-0.025 mm to 0 mm3.1 mm-0.05 mm to 0.05 mmParallel4.66 mmRockwell B681,400ISO 874210000000000000
    16 mm3 mm-0.025 mm to 0 mm3.1 mm-0.05 mm to 0.05 mmParallel5.33 mmRockwell B681,400ISO 874210000000000000
    22 mm3 mm-0.025 mm to 0 mm3.15 mm-0.05 mm to 0.05 mmParallel7.33 mmRockwell B681,400ISO 874210000000000000
    24 mm3 mm-0.025 mm to 0 mm3.15 mm-0.05 mm to 0.05 mmParallel8 mmRockwell B681,400ISO 874210000000000000
     
    4 mm Diameter
    16 mm4 mm-0.075 mm to 0 mm4.15 mm-0.05 mm to 0.05 mmParallel5.33 mmRockwell B682,500ISO 874210000000000000
    18 mm4 mm-0.075 mm to 0 mm4.15 mm-0.05 mm to 0.05 mmParallel6 mmRockwell B682,500ISO 874210000000000000
    24 mm4 mm-0.075 mm to 0 mm4.2 mm-0.05 mm to 0.05 mmParallel8 mmRockwell B682,500ISO 874210000000000000
     
    5 mm Diameter
    22 mm5 mm-0.075 mm to 0 mm5.2 mm-0.05 mm to 0.05 mmParallel7.33 mmRockwell B683,950ISO 8742100000000000000
    26 mm5 mm-0.075 mm to 0 mm5.2 mm-0.05 mm to 0.05 mmParallel8.66 mmRockwell B683,950ISO 8742100000000000000
    32 mm5 mm-0.075 mm to 0 mm5.25 mm-0.05 mm to 0.05 mmParallel10.66 mmRockwell B683,950ISO 8742100000000000000
     
    6 mm Diameter
    28 mm6 mm-0.075 mm to 0 mm6.25 mm-0.05 mm to 0.05 mmParallel9.33 mmRockwell B685,700ISO 8742100000000000000
     
    8 mm Diameter
    32 mm8 mm-0.09 mm to 0 mm8.25 mm-0.05 mm to 0.05 mmParallel10.66 mmRockwell B6810,150ISO 874250000000000000
     
    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 Rated5,8001000000000000000
     
    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
     
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