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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. Standard Tolerance, Plain Head, Fully Grooved, Parallel Groove.

    Parallel Groove

    Image of Product. Front orientation. Dowel Pins. Standard Tolerance, Plain Head, Fully Grooved, 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
    Double Shear
    Breaking
    Strength, lbf
    Min.
    Hardness
    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"Tapered850Not Rated__25000000000000000
    1/2"0.094"-0.002" to 0"0.101"-0.003" to 0.003"Tapered850Not Rated__2500000000000000
     
    1/8" Diameter
    1/2"0.125"-0.002" to 0"0.134"-0.003" to 0.003"Tapered1,600Not Rated__2500000000000000
    3/4"0.125"-0.002" to 0"0.134"-0.003" to 0.003"Tapered1,600Not Rated__2500000000000000
    1"0.125"-0.002" to 0"0.133"-0.003" to 0.003"Tapered1,600Not Rated__2500000000000000
     
    5/32" Diameter
    1/2"0.156"-0.002" to 0"0.166"-0.003" to 0.003"Tapered2,300Not Rated__2500000000000000
    3/4"0.156"-0.002" to 0"0.166"-0.003" to 0.003"Tapered2,300Not Rated__2500000000000000
    1"0.156"-0.002" to 0"0.165"-0.003" to 0.003"Tapered2,300Not Rated__2500000000000000
     
    3/16" Diameter
    1/2"0.188"-0.002" to 0"0.198"-0.003" to 0.003"Tapered3,300Not Rated__2500000000000000
    3/4"0.188"-0.002" to 0"0.198"-0.003" to 0.003"Tapered3,300Not Rated__2500000000000000
    1"0.188"-0.002" to 0"0.198"-0.003" to 0.003"Tapered3,300Not Rated__100000000000000
    1 1/2"0.188"-0.002" to 0"0.197"-0.003" to 0.003"Tapered3,300Not Rated__1000000000000000
     
    1/4" Diameter
    3/4"0.25"-0.002" to 0"0.263"-0.003" to 0.003"Tapered5,800Not Rated__2500000000000000
    1"0.25"-0.002" to 0"0.263"-0.003" to 0.003"Tapered5,800Not Rated__2500000000000000
    1 1/4"0.25"-0.002" to 0"0.263"-0.003" to 0.003"Tapered5,800Not Rated__100000000000000
    1 1/2"0.25"-0.002" to 0"0.262"-0.003" to 0.003"Tapered5,800Not Rated__1000000000000000
     
    5/16" Diameter
    3/4"0.313"-0.002" to 0"0.329"-0.003" to 0.003"Tapered7,600Not Rated__100000000000000
    1"0.313"-0.002" to 0"0.329"-0.003" to 0.003"Tapered7,600Not Rated__100000000000000
    1 1/4"0.313"-0.002" to 0"0.329"-0.003" to 0.003"Tapered7,600Not Rated__100000000000000
     
    3/8" Diameter
    1"0.375"-0.002" to 0"0.394"-0.003" to 0.003"Tapered11,000Not Rated__1000000000000000
     
    2 mm Diameter
    14 mm2 mm-0.025 mm to 0 mm2.15 mm0 mm to 0.05 mmParallel600Rockwell B68ISO 874010000000000000
    14 mm2 mm-0.025 mm to 0 mm2.15 mm0 mm to 0.05 mmTapered600Rockwell B68ISO 874410000000000000
    16 mm2 mm-0.025 mm to 0 mm2.15 mm0 mm to 0.05 mmParallel600Rockwell B68ISO 874010000000000000
     
    2.5 mm Diameter
    12 mm2.5 mm-0.025 mm to 0 mm2.7 mm-0.05 mm to 0.05 mmTapered950Rockwell B68ISO 874410000000000000
    18 mm2.5 mm-0.025 mm to 0 mm2.65 mm-0.05 mm to 0.05 mmTapered950Rockwell B68ISO 874410000000000000
    20 mm2.5 mm-0.025 mm to 0 mm2.65 mm-0.05 mm to 0.05 mmTapered950Rockwell B68ISO 874410000000000000
     
    3 mm Diameter
    12 mm3 mm-0.025 mm to 0 mm3.2 mm-0.05 mm to 0.05 mmParallel1,400Rockwell B68ISO 874010000000000000
    12 mm3 mm-0.025 mm to 0 mm3.3 mm-0.05 mm to 0.05 mmTapered1,400Rockwell B68ISO 874410000000000000
     
    4 mm Diameter
    10 mm4 mm-0.075 mm to 0 mm4.3 mm-0.05 mm to 0.05 mmTapered1,400Rockwell B68ISO 874410000000000000
    18 mm4 mm-0.075 mm to 0 mm4.35 mm-0.05 mm to 0.05 mmTapered1,400Rockwell B68ISO 874410000000000000
    20 mm4 mm-0.075 mm to 0 mm4.25 mm-0.05 mm to 0.05 mmParallel2,500Rockwell B68ISO 874010000000000000
    26 mm4 mm-0.075 mm to 0 mm4.25 mm-0.05 mm to 0.05 mmParallel2,500Rockwell B68ISO 874010000000000000
    30 mm4 mm-0.075 mm to 0 mm4.25 mm-0.05 mm to 0.05 mmParallel2,500Rockwell B68ISO 874010000000000000
     
    5 mm Diameter
    16 mm5 mm-0.075 mm to 0 mm5.25 mm-0.05 mm to 0.05 mmParallel3,900Rockwell B68ISO 874010000000000000
    45 mm5 mm-0.075 mm to 0 mm5.25 mm-0.05 mm to 0.05 mmTapered3,900Rockwell B68ISO 8744100000000000000
     
    6 mm Diameter
    20 mm6 mm-0.075 mm to 0 mm6.3 mm-0.05 mm to 0.05 mmParallel5,700Rockwell B68ISO 8740100000000000000
     
    Corrosion-Resistant Stainless Steel
    Image of Product. Front orientation. Dowel Pins. Standard Tolerance, Plain Head, Fully Grooved, 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.
    Nominal
    Max.
    Lg.
    Dia.
    Dia.
    Tolerance
    Dia.
    Dia. Tolerance
    Groove
    Type
    Double Shear
    Breaking
    Strength
    Min.
    Hardness
    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 Rated1000000000000000
    1/2"0.094"-0.002" to 0"0.101"-0.003" to 0.003"TaperedNot RatedNot Rated1000000000000000
     
    1/8" Diameter
    1/2"0.125"-0.002" to 0"0.134"-0.003" to 0.003"TaperedNot RatedNot Rated1000000000000000
    3/4"0.125"-0.002" to 0"0.134"-0.003" to 0.003"TaperedNot RatedNot Rated1000000000000000
    1"0.125"-0.002" to 0"0.133"-0.003" to 0.003"TaperedNot RatedNot Rated1000000000000000
     
    5/32" Diameter
    1/2"0.156"-0.002" to 0"0.166"-0.003" to 0.003"TaperedNot RatedNot Rated500000000000000
    3/4"0.156"-0.002" to 0"0.166"-0.003" to 0.003"TaperedNot RatedNot Rated500000000000000
    1"0.156"-0.002" to 0"0.165"-0.003" to 0.003"TaperedNot RatedNot Rated500000000000000
     
    3/16" Diameter
    1/2"0.188"-0.002" to 0"0.198"-0.003" to 0.003"TaperedNot RatedNot Rated1000000000000000
    3/4"0.188"-0.002" to 0"0.198"-0.003" to 0.003"TaperedNot RatedNot Rated1000000000000000
    1"0.188"-0.002" to 0"0.198"-0.003" to 0.003"TaperedNot RatedNot Rated1000000000000000
    1 1/2"0.188"-0.002" to 0"0.197"-0.003" to 0.003"TaperedNot RatedNot Rated50000000000000
     
    1/4" Diameter
    3/4"0.25"-0.002" to 0"0.263"-0.003" to 0.003"TaperedNot RatedNot Rated50000000000000
    1"0.25"-0.002" to 0"0.263"-0.003" to 0.003"TaperedNot RatedNot Rated500000000000000
    1 1/4"0.25"-0.002" to 0"0.263"-0.003" to 0.003"TaperedNot RatedNot Rated500000000000000
    1 1/2"0.25"-0.002" to 0"0.262"-0.003" to 0.003"TaperedNot RatedNot Rated500000000000000
     
    5/16" Diameter
    1"0.313"-0.002" to 0"0.329"-0.003" to 0.003"TaperedNot RatedNot Rated500000000000000
    1 1/4"0.313"-0.002" to 0"0.329"-0.003" to 0.003"TaperedNot RatedNot Rated500000000000000
     
    3/8" Diameter
    1"0.375"-0.002" to 0"0.394"-0.003" to 0.003"TaperedNot RatedNot Rated50000000000000
     

    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. Rounded Head, Standard Tolerance, Fully Grooved.
    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
    Double Shear
    Breaking
    Strength
    Min.
    Hardness
    Dia.
    Ht.
    Specs. Met
    Each
    Zinc-Plated Carbon Steel
    1/4"0.086"-0.002" to 0"0.096"-0.002" to 0.002"ParallelNot RatedNot Rated0.154"0.065"ASME B18.8.200000000000000
    1/4"0.104"-0.002" to 0"0.113"-0.002" to 0.002"ParallelNot RatedNot Rated0.202"0.08"ASME B18.8.20000000000000
    3/8"0.086"-0.002" to 0"0.096"-0.002" to 0.002"ParallelNot RatedNot Rated0.154"0.065"ASME B18.8.20000000000000
    3/8"0.104"-0.002" to 0"0.113"-0.002" to 0.002"ParallelNot RatedNot Rated0.202"0.08"ASME B18.8.20000000000000
    3/8"0.12"-0.002" to 0"0.13"-0.002" to 0.002"ParallelNot RatedNot Rated0.25"0.097"ASME B18.8.20000000000000
    3/8"0.144"-0.002" to 0"0.153"-0.002" to 0.002"ParallelNot RatedNot Rated0.298"0.113"ASME B18.8.20000000000000
    1/2"0.086"-0.002" to 0"0.096"-0.002" to 0.002"ParallelNot RatedNot Rated0.154"0.065"ASME B18.8.20000000000000
    1/2"0.104"-0.002" to 0"0.113"-0.002" to 0.002"ParallelNot RatedNot Rated0.202"0.08"ASME B18.8.20000000000000
    1/2"0.12"-0.002" to 0"0.13"-0.002" to 0.002"ParallelNot RatedNot Rated0.25"0.097"ASME B18.8.20000000000000
    1/2"0.144"-0.002" to 0"0.155"-0.002" to 0.002"ParallelNot RatedNot Rated0.298"0.113"ASME B18.8.20000000000000
    1/2"0.161"-0.002" to 0"0.171"-0.002" to 0.002"ParallelNot RatedNot Rated0.347"0.13"ASME B18.8.20000000000000
    1/2"0.196"-0.002" to 0"0.206"-0.002" to 0.002"ParallelNot RatedNot Rated0.395"0.146"ASME B18.8.20000000000000
    5/8"0.12"-0.002" to 0"0.13"-0.002" to 0.002"ParallelNot RatedNot Rated0.25"0.097"ASME B18.8.20000000000000
    5/8"0.144"-0.002" to 0"0.155"-0.002" to 0.002"ParallelNot RatedNot Rated0.298"0.113"ASME B18.8.20000000000000
    3/4"0.161"-0.002" to 0"0.171"-0.002" to 0.002"ParallelNot RatedNot Rated0.347"0.13"ASME B18.8.20000000000000
    3/4"0.196"-0.002" to 0"0.201"-0.002" to 0.002"ParallelNot RatedNot Rated0.395"0.146"ASME B18.8.20000000000000
    1"0.161"-0.002" to 0"0.171"-0.002" to 0.002"ParallelNot RatedNot Rated0.347"0.13"ASME B18.8.20000000000000
    1"0.196"-0.002" to 0"0.201"-0.002" to 0.002"ParallelNot RatedNot Rated0.395"0.146"ASME 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. Plain Head, Partially Grooved, Standard Tolerance, Half Grooved.
    Image of Product. Back orientation. Dowel Pins. Plain Head, Partially Grooved, Standard Tolerance, Half Grooved, Parallel Groove.
    Image of Product. Front orientation. Dowel Pins. Plain Head, Partially Grooved, Standard Tolerance, Half Grooved, Tapered Groove.

    Parallel 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.
    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
    Double Shear
    Breaking
    Strength, lbf
    Min.
    Hardness
    Groove
    Lg.
    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"Parallel850Not Rated1/8"__25000000000000000
    1/2"0.094"-0.002" to 0"0.101"-0.003" to 0.003"Parallel850Not Rated1/4"__2500000000000000
     
    1/8" Diameter
    1/2"0.125"-0.002" to 0"0.134"-0.003" to 0.003"Parallel1,600Not Rated1/4"__2500000000000000
    3/4"0.125"-0.002" to 0"0.134"-0.003" to 0.003"Parallel1,600Not Rated3/8"__2500000000000000
    1"0.125"-0.002" to 0"0.133"-0.003" to 0.003"Parallel1,600Not Rated1/2"__2500000000000000
     
    5/32" Diameter
    1/2"0.156"-0.002" to 0"0.166"-0.003" to 0.003"Parallel2,300Not Rated1/4"__2500000000000000
    3/4"0.156"-0.002" to 0"0.166"-0.003" to 0.003"Parallel2,300Not Rated3/8"__2500000000000000
    1"0.156"-0.002" to 0"0.165"-0.003" to 0.003"Parallel2,300Not Rated1/2"__2500000000000000
     
    3/16" Diameter
    1/2"0.188"-0.002" to 0"0.198"-0.003" to 0.003"Parallel3,300Not Rated1/4"__2500000000000000
    3/4"0.188"-0.002" to 0"0.198"-0.003" to 0.003"Parallel3,300Not Rated3/8"__2500000000000000
    1"0.188"-0.002" to 0"0.198"-0.003" to 0.003"Parallel3,300Not Rated1/2"__100000000000000
    1 1/2"0.188"-0.002" to 0"0.197"-0.003" to 0.003"Parallel3,300Not Rated3/4"__1000000000000000
     
    1/4" Diameter
    3/4"0.25"-0.002" to 0"0.263"-0.003" to 0.003"Parallel5,800Not Rated3/8"__2500000000000000
    1"0.25"-0.002" to 0"0.263"-0.003" to 0.003"Parallel5,800Not Rated1/2"__2500000000000000
    1 1/4"0.25"-0.002" to 0"0.263"-0.003" to 0.003"Parallel5,800Not Rated5/8"__100000000000000
    1 1/2"0.25"-0.002" to 0"0.262"-0.003" to 0.003"Parallel5,800Not Rated3/4"__1000000000000000
     
    5/16" Diameter
    3/4"0.313"-0.002" to 0"0.329"-0.003" to 0.003"Parallel7,600Not Rated3/8"__100000000000000
    1"0.313"-0.002" to 0"0.329"-0.003" to 0.003"Parallel7,600Not Rated1/2"__100000000000000
    1 1/4"0.313"-0.002" to 0"0.329"-0.003" to 0.003"Parallel7,600Not Rated5/8"__100000000000000
     
    3/8" Diameter
    1"0.375"-0.002" to 0"0.394"-0.003" to 0.003"Parallel11,000Not Rated1/2"__1000000000000000
     
    2 mm Diameter
    8 mm2 mm-0.025 mm to 0 mm2.1 mm0 mm to 0.05 mmReverse Tapered600Rockwell B684 mmISO 8741100000000000000
    10 mm2 mm-0.025 mm to 0 mm2.2 mm0 mm to 0.05 mmTapered600Rockwell B685 mmISO 8745100000000000000
    14 mm2 mm-0.025 mm to 0 mm2.2 mm0 mm to 0.05 mmTapered600Rockwell B687 mmISO 8745100000000000000
     
    2.5 mm Diameter
    6 mm2.5 mm-0.025 mm to 0 mm2.7 mm-0.05 mm to 0.05 mmTapered950Rockwell B683 mmISO 8745100000000000000
    10 mm2.5 mm-0.025 mm to 0 mm2.7 mm-0.05 mm to 0.05 mmTapered950Rockwell B685 mmISO 8745100000000000000
    14 mm2.5 mm-0.025 mm to 0 mm2.7 mm-0.05 mm to 0.05 mmReverse Tapered950Rockwell B687 mmISO 8741100000000000000
     
    3 mm Diameter
    6 mm3 mm-0.025 mm to 0 mm3.2 mm-0.05 mm to 0.05 mmTapered1,400Rockwell B683 mmISO 8745100000000000000
    8 mm3 mm-0.025 mm to 0 mm3.2 mm-0.05 mm to 0.05 mmTapered1,400Rockwell B684 mmISO 8745100000000000000
    12 mm3 mm-0.025 mm to 0 mm3.1 mm-0.05 mm to 0.05 mmReverse Tapered1,400Rockwell B686 mmISO 8741100000000000000
    12 mm3 mm-0.025 mm to 0 mm3.3 mm-0.05 mm to 0.05 mmTapered1,400Rockwell B686 mmISO 8745100000000000000
    14 mm3 mm-0.025 mm to 0 mm3.2 mm-0.05 mm to 0.05 mmReverse Tapered1,400Rockwell B687 mmISO 8741100000000000000
    20 mm3 mm-0.025 mm to 0 mm3.3 mm-0.05 mm to 0.05 mmTapered1,400Rockwell B6810 mmISO 8745100000000000000
    24 mm3 mm-0.025 mm to 0 mm3.3 mm-0.05 mm to 0.05 mmTapered1,400Rockwell B6812 mmISO 8745100000000000000
    26 mm3 mm-0.025 mm to 0 mm3.3 mm-0.05 mm to 0.05 mmTapered1,400Rockwell B6813 mmISO 8745100000000000000
     
    4 mm Diameter
    10 mm4 mm-0.075 mm to 0 mm4.2 mm-0.05 mm to 0.05 mmReverse Tapered1,400Rockwell B685 mmISO 8741100000000000000
    10 mm4 mm-0.075 mm to 0 mm4.3 mm-0.05 mm to 0.05 mmTapered2,500Rockwell B685 mmISO 8745100000000000000
    16 mm4 mm-0.075 mm to 0 mm4.2 mm-0.05 mm to 0.05 mmReverse Tapered2,500Rockwell B688 mmISO 8741100000000000000
    20 mm4 mm-0.075 mm to 0 mm4.2 mm-0.05 mm to 0.05 mmReverse Tapered2,500Rockwell B6810 mmISO 8741100000000000000
    30 mm4 mm-0.075 mm to 0 mm4.3 mm-0.05 mm to 0.05 mmReverse Tapered2,500Rockwell B6815 mmISO 8741100000000000000
     
    5 mm Diameter
    16 mm5 mm-0.075 mm to 0 mm5.3 mm-0.05 mm to 0.05 mmTapered3,900Rockwell B688 mmISO 8745100000000000000
    18 mm5 mm-0.075 mm to 0 mm5.3 mm-0.05 mm to 0.05 mmTapered3,900Rockwell B689 mmISO 87451000000000000000
    30 mm5 mm-0.075 mm to 0 mm5.3 mm-0.05 mm to 0.05 mmReverse Tapered3,900Rockwell B6815 mmISO 87411000000000000000
    30 mm5 mm-0.075 mm to 0 mm5.4 mm-0.05 mm to 0.05 mmTapered3,900Rockwell B6815 mmISO 87451000000000000000
     
    6 mm Diameter
    12 mm6 mm-0.075 mm to 0 mm6.3 mm-0.05 mm to 0.05 mmTapered5,700Rockwell B686 mmISO 87451000000000000000
    14 mm6 mm-0.075 mm to 0 mm6.2 mm-0.05 mm to 0.05 mmReverse Tapered5,700Rockwell B687 mmISO 87411000000000000000
    16 mm6 mm-0.075 mm to 0 mm6.2 mm-0.05 mm to 0.05 mmReverse Tapered5,700Rockwell B688 mmISO 87411000000000000000
    20 mm6 mm-0.075 mm to 0 mm6.3 mm-0.05 mm to 0.05 mmTapered5,700Rockwell B6810 mmISO 87451000000000000000
    26 mm6 mm-0.075 mm to 0 mm6.4 mm-0.05 mm to 0.05 mmTapered5,700Rockwell B6813 mmISO 87451000000000000000
    30 mm6 mm-0.075 mm to 0 mm6.4 mm-0.05 mm to 0.05 mmTapered5,700Rockwell B6815 mmISO 87451000000000000000
    40 mm6 mm-0.075 mm to 0 mm6.4 mm-0.05 mm to 0.05 mmTapered5,700Rockwell B6820 mmISO 87451000000000000000
     
    8 mm Diameter
    16 mm8 mm-0.09 mm to 0 mm8.3 mm-0.05 mm to 0.05 mmTapered10,100Rockwell B688 mmISO 8745500000000000000
     
    Center Grooved
    Image of ProductInUse. Front orientation. Dowel Pins. Plain Head, Partially Grooved, Standard Tolerance, Center Grooved.
    Image of Product. Front orientation. Dowel Pins. Plain Head, Partially Grooved, Standard Tolerance, 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
    Double Shear
    Breaking
    Strength, lbf
    Min.
    Hardness
    Groove
    Lg.
    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"Parallel850Not Rated1/8"__25000000000000000
    1/2"0.094"-0.002" to 0"0.101"-0.003" to 0.003"Parallel850Not Rated1/4"__2500000000000000
     
    1/8" Diameter
    1/2"0.125"-0.002" to 0"0.134"-0.003" to 0.003"Parallel1,600Not Rated1/4"__2500000000000000
    3/4"0.125"-0.002" to 0"0.134"-0.003" to 0.003"Parallel1,600Not Rated3/8"__2500000000000000
    1"0.125"-0.002" to 0"0.133"-0.003" to 0.003"Parallel1,600Not Rated1/2"__2500000000000000
     
    5/32" Diameter
    1/2"0.156"-0.002" to 0"0.166"-0.003" to 0.003"Parallel2,300Not Rated1/4"__2500000000000000
    3/4"0.156"-0.002" to 0"0.166"-0.003" to 0.003"Parallel2,300Not Rated3/8"__2500000000000000
    1"0.156"-0.002" to 0"0.165"-0.003" to 0.003"Parallel2,300Not Rated1/2"__2500000000000000
     
    3/16" Diameter
    1/2"0.188"-0.002" to 0"0.198"-0.003" to 0.003"Parallel3,300Not Rated1/4"__2500000000000000
    3/4"0.188"-0.002" to 0"0.198"-0.003" to 0.003"Parallel3,300Not Rated3/8"__2500000000000000
    1"0.188"-0.002" to 0"0.198"-0.003" to 0.003"Parallel3,300Not Rated1/2"__100000000000000
    1 1/2"0.188"-0.002" to 0"0.197"-0.003" to 0.003"Parallel3,300Not Rated3/4"__1000000000000000
     
    1/4" Diameter
    3/4"0.25"-0.002" to 0"0.263"-0.003" to 0.003"Parallel5,800Not Rated3/8"__2500000000000000
    1"0.25"-0.002" to 0"0.263"-0.003" to 0.003"Parallel5,800Not Rated1/2"__2500000000000000
    1 1/4"0.25"-0.002" to 0"0.263"-0.003" to 0.003"Parallel5,800Not Rated5/8"__100000000000000
    1 1/2"0.25"-0.002" to 0"0.262"-0.003" to 0.003"Parallel5,800Not Rated3/4"__1000000000000000
     
    5/16" Diameter
    3/4"0.313"-0.002" to 0"0.329"-0.003" to 0.003"Parallel7,600Not Rated3/8"__100000000000000
    1"0.313"-0.002" to 0"0.329"-0.003" to 0.003"Parallel7,600Not Rated1/2"__100000000000000
    1 1/4"0.313"-0.002" to 0"0.329"-0.003" to 0.003"Parallel7,600Not Rated5/8"__100000000000000
     
    3/8" Diameter
    1"0.375"-0.002" to 0"0.394"-0.003" to 0.003"Parallel11,000Not Rated1/2"__1000000000000000
     
    2 mm Diameter
    12 mm2 mm-0.025 mm to 0 mm2.1 mm0 mm to 0.05 mmParallel600Rockwell B684 mmISO 874210000000000000
     
    2.5 mm Diameter
    24 mm2.5 mm-0.025 mm to 0 mm2.65 mm-0.05 mm to 0.05 mmParallel950Rockwell B688 mmISO 874210000000000000
     
    3 mm Diameter
    12 mm3 mm-0.025 mm to 0 mm3.1 mm-0.05 mm to 0.05 mmParallel1,400Rockwell B684 mmISO 874210000000000000
    14 mm3 mm-0.025 mm to 0 mm3.1 mm-0.05 mm to 0.05 mmParallel1,400Rockwell B684.66 mmISO 874210000000000000
    16 mm3 mm-0.025 mm to 0 mm3.1 mm-0.05 mm to 0.05 mmParallel1,400Rockwell B685.33 mmISO 874210000000000000
    22 mm3 mm-0.025 mm to 0 mm3.15 mm-0.05 mm to 0.05 mmParallel1,400Rockwell B687.33 mmISO 874210000000000000
    24 mm3 mm-0.025 mm to 0 mm3.15 mm-0.05 mm to 0.05 mmParallel1,400Rockwell B688 mmISO 874210000000000000
     
    4 mm Diameter
    16 mm4 mm-0.075 mm to 0 mm4.15 mm-0.05 mm to 0.05 mmParallel2,500Rockwell B685.33 mmISO 874210000000000000
    18 mm4 mm-0.075 mm to 0 mm4.15 mm-0.05 mm to 0.05 mmParallel2,500Rockwell B686 mmISO 874210000000000000
    24 mm4 mm-0.075 mm to 0 mm4.2 mm-0.05 mm to 0.05 mmParallel2,500Rockwell B688 mmISO 874210000000000000
     
    5 mm Diameter
    22 mm5 mm-0.075 mm to 0 mm5.2 mm-0.05 mm to 0.05 mmParallel3,950Rockwell B687.33 mmISO 8742100000000000000
    26 mm5 mm-0.075 mm to 0 mm5.2 mm-0.05 mm to 0.05 mmParallel3,950Rockwell B688.66 mmISO 8742100000000000000
    32 mm5 mm-0.075 mm to 0 mm5.25 mm-0.05 mm to 0.05 mmParallel3,950Rockwell B6810.66 mmISO 8742100000000000000
     
    6 mm Diameter
    28 mm6 mm-0.075 mm to 0 mm6.25 mm-0.05 mm to 0.05 mmParallel5,700Rockwell B689.33 mmISO 8742100000000000000
     
    8 mm Diameter
    32 mm8 mm-0.09 mm to 0 mm8.25 mm-0.05 mm to 0.05 mmParallel10,150Rockwell B6810.66 mmISO 874250000000000000
     
    Quarter Grooved
    Image of ProductInUse. Front orientation. Dowel Pins. Plain Head, Partially Grooved, Standard Tolerance, Quarter Grooved.
    Image of Product. Front orientation. Dowel Pins. Plain Head, Partially Grooved, Standard Tolerance, 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
    Double Shear
    Breaking
    Strength, lbf
    Min.
    Hardness
    Groove
    Lg.
    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"Parallel850Not Rated1/16"25000000000000000
    1/2"0.094"-0.002" to 0"0.101"-0.003" to 0.003"Parallel850Not Rated1/8"2500000000000000
     
    1/8" Diameter
    1/2"0.125"-0.002" to 0"0.134"-0.003" to 0.003"Parallel1,600Not Rated1/8"2500000000000000
    3/4"0.125"-0.002" to 0"0.134"-0.003" to 0.003"Parallel1,600Not Rated3/16"2500000000000000
    1"0.125"-0.002" to 0"0.133"-0.003" to 0.003"Parallel1,600Not Rated1/4"2500000000000000
     
    5/32" Diameter
    1/2"0.156"-0.002" to 0"0.166"-0.003" to 0.003"Parallel2,300Not Rated1/8"2500000000000000
    3/4"0.156"-0.002" to 0"0.166"-0.003" to 0.003"Parallel2,300Not Rated3/16"2500000000000000
    1"0.156"-0.002" to 0"0.165"-0.003" to 0.003"Parallel2,300Not Rated1/4"2500000000000000
     
    3/16" Diameter
    1/2"0.188"-0.002" to 0"0.198"-0.003" to 0.003"Parallel3,300Not Rated1/8"2500000000000000
    3/4"0.188"-0.002" to 0"0.198"-0.003" to 0.003"Parallel3,300Not Rated3/16"2500000000000000
    1"0.188"-0.002" to 0"0.198"-0.003" to 0.003"Parallel3,300Not Rated1/4"100000000000000
    1 1/2"0.188"-0.002" to 0"0.197"-0.003" to 0.003"Parallel3,300Not Rated3/8"1000000000000000
     
    1/4" Diameter
    3/4"0.25"-0.002" to 0"0.263"-0.003" to 0.003"Parallel5,800Not Rated3/16"2500000000000000
    1"0.25"-0.002" to 0"0.263"-0.003" to 0.003"Parallel5,800Not Rated1/4"2500000000000000
    1 1/4"0.25"-0.002" to 0"0.263"-0.003" to 0.003"Parallel5,800Not Rated5/16"100000000000000
    1 1/2"0.25"-0.002" to 0"0.262"-0.003" to 0.003"Parallel5,800Not Rated3/8"1000000000000000
     
    5/16" Diameter
    3/4"0.313"-0.002" to 0"0.329"-0.003" to 0.003"Parallel7,600Not Rated3/16"100000000000000
    1"0.313"-0.002" to 0"0.329"-0.003" to 0.003"Parallel7,600Not Rated1/4"100000000000000
    1 1/4"0.313"-0.002" to 0"0.329"-0.003" to 0.003"Parallel7,600Not Rated5/16"100000000000000
     
    3/8" Diameter
    1"0.375"-0.002" to 0"0.394"-0.003" to 0.003"Parallel11,000Not Rated1/4"1000000000000000
     

    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, Standard Tolerance, Notch Head, Half Grooved.
    Image of Product. Front orientation. Dowel Pins. Partially Grooved, Standard Tolerance, Notch Head, 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
    Double Shear
    Breaking
    Strength, lbf
    Min.
    Hardness
    Groove
    Lg.
    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"Parallel850Not Rated1/8"25000000000000000
    1/2"0.094"-0.002" to 0"0.101"-0.003" to 0.003"Parallel850Not Rated1/4"2500000000000000
     
    1/8" Diameter
    1/2"0.125"-0.002" to 0"0.134"-0.003" to 0.003"Parallel1,600Not Rated1/4"2500000000000000
    3/4"0.125"-0.002" to 0"0.134"-0.003" to 0.003"Parallel1,600Not Rated3/8"2500000000000000
    1"0.125"-0.002" to 0"0.133"-0.003" to 0.003"Parallel1,600Not Rated1/2"2500000000000000
     
    5/32" Diameter
    1/2"0.156"-0.002" to 0"0.166"-0.003" to 0.003"Parallel2,300Not Rated1/4"2500000000000000
    3/4"0.156"-0.002" to 0"0.166"-0.003" to 0.003"Parallel2,300Not Rated3/8"2500000000000000
    1"0.156"-0.002" to 0"0.165"-0.003" to 0.003"Parallel2,300Not Rated1/2"2500000000000000
     
    3/16" Diameter
    1/2"0.188"-0.002" to 0"0.198"-0.003" to 0.003"Parallel3,300Not Rated1/4"2500000000000000
    3/4"0.188"-0.002" to 0"0.198"-0.003" to 0.003"Parallel3,300Not Rated3/8"2500000000000000
    1"0.188"-0.002" to 0"0.198"-0.003" to 0.003"Parallel3,300Not Rated1/2"100000000000000
    1 1/2"0.188"-0.002" to 0"0.197"-0.003" to 0.003"Parallel3,300Not Rated3/4"1000000000000000
     
    1/4" Diameter
    3/4"0.25"-0.002" to 0"0.263"-0.003" to 0.003"Parallel5,800Not Rated3/8"2500000000000000
    1"0.25"-0.002" to 0"0.263"-0.003" to 0.003"Parallel5,800Not Rated1/2"2500000000000000
    1 1/4"0.25"-0.002" to 0"0.263"-0.003" to 0.003"Parallel5,800Not Rated5/8"100000000000000
    1 1/2"0.25"-0.002" to 0"0.262"-0.003" to 0.003"Parallel5,800Not Rated3/4"1000000000000000
     
    5/16" Diameter
    3/4"0.313"-0.002" to 0"0.329"-0.003" to 0.003"Parallel7,600Not Rated3/8"100000000000000
    1"0.313"-0.002" to 0"0.329"-0.003" to 0.003"Parallel7,600Not Rated1/2"100000000000000
    1 1/4"0.313"-0.002" to 0"0.329"-0.003" to 0.003"Parallel7,600Not Rated5/8"100000000000000
     
    3/8" Diameter
    1"0.375"-0.002" to 0"0.394"-0.003" to 0.003"Parallel11,000Not Rated1/2"1000000000000000
     
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