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    181 Products

    Performance

    Performance

    Certification

    Undersized Dowel Pins

    You don’t need to create precise holes for these pins when aligning parts you plan to bolt together. They have a slightly undersized diameter to slip into place without the need for special installation tools, like an arbor press. Undersized pins are also used for prototyping and positioning components you need to assemble and disassemble frequently.
    Steel
    Image of Product. Front orientation. Dowel Pins. Undersized Tolerance, Plain Head.
    High-Strength Alloy Steel—Our strongest, most wear-resistant pins, these won't bend or break from vibration. Use them for high-stress applications, such as mounting and aligning hydraulic cylinders and injection molds. They perform best in dry environments since moisture will cause them to rust.
    Machinable 12L14 Carbon Steel—Made of 12L14 carbon steel, these pins are the easiest to machine, so you can shape them if they don't quite match your hole dimensions. Stronger than stainless steel but not quite as strong as alloy steel, they won't deform from stress and vibration. Pins perform best in dry environments since moisture will cause them to rust.
    Lg.
    Dia. Tolerance
    Double Shear Breaking
    Strength, lbf
    Min.
    Hardness
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    High-Strength Alloy Steel
     
    1/16" Diameter
    1/4"-0.0002" to 0"750Rockwell C50—100000000000000
    3/8"-0.0002" to 0"750Rockwell C50—10000000000000
    1/2"-0.0002" to 0"750Rockwell C50—10000000000000
     
    3/32" Diameter
    1/4"-0.0002" to 0"1,400Rockwell C50—10000000000000
    3/8"-0.0002" to 0"1,400Rockwell C50—10000000000000
    1/2"-0.0002" to 0"1,400Rockwell C50—10000000000000
    3/4"-0.0002" to 0"Not RatedRockwell C48ASME B18.8.210000000000000
     
    1/8" Diameter
    3/8"-0.0002" to 0"2,600Rockwell C50—10000000000000
    1/2"-0.0002" to 0"2,600Rockwell C50—10000000000000
    5/8"-0.0002" to 0"2,600Rockwell C50—10000000000000
    3/4"-0.0002" to 0"2,600Rockwell C50—10000000000000
    7/8"-0.0002" to 0"Not RatedRockwell C48ASME B18.8.210000000000000
    1"-0.0002" to 0"Not RatedRockwell C48ASME B18.8.210000000000000
    1 1/4"-0.0002" to 0"Not RatedRockwell C48ASME B18.8.210000000000000
    1 1/2"-0.0002" to 0"Not RatedRockwell C48ASME B18.8.210000000000000
    2"-0.0002" to 0"Not RatedRockwell C48ASME B18.8.210000000000000
     
    3/16" Diameter
    3/8"-0.0002" to 0"Not RatedRockwell C48ASME B18.8.210000000000000
    1/2"-0.0002" to 0"5,900Rockwell C50—10000000000000
    5/8"-0.0002" to 0"5,900Rockwell C50—10000000000000
    3/4"-0.0002" to 0"5,900Rockwell C50—10000000000000
    7/8"-0.0002" to 0"Not RatedRockwell C48ASME B18.8.210000000000000
    1"-0.0002" to 0"Not RatedRockwell C48ASME B18.8.210000000000000
    1 1/4"-0.0002" to 0"Not RatedRockwell C48ASME B18.8.210000000000000
    1 1/2"-0.0002" to 0"Not RatedRockwell C48ASME B18.8.210000000000000
    2"-0.0002" to 0"Not RatedRockwell C48ASME B18.8.210000000000000
     
    1/4" Diameter
    3/8"-0.0002" to 0"Not RatedRockwell C48ASME B18.8.210000000000000
    1/2"-0.0002" to 0"10,000Rockwell C50—10000000000000
    5/8"-0.0002" to 0"Not RatedRockwell C48ASME B18.8.210000000000000
    3/4"-0.0002" to 0"10,000Rockwell C50—10000000000000
    7/8"-0.0002" to 0"Not RatedRockwell C48ASME B18.8.210000000000000
    1"-0.0002" to 0"10,000Rockwell C50—10000000000000
    1 1/4"-0.0002" to 0"Not RatedRockwell C48ASME B18.8.210000000000000
    1 1/2"-0.0002" to 0"Not RatedRockwell C48ASME B18.8.210000000000000
    1 3/4"-0.0002" to 0"Not RatedRockwell C48ASME B18.8.210000000000000
    2"-0.0002" to 0"Not RatedRockwell C48ASME B18.8.210000000000000
    2 1/2"-0.0002" to 0"Not RatedRockwell C48ASME B18.8.210000000000000
    3"-0.0002" to 0"Not RatedRockwell C48ASME B18.8.210000000000000
     
    5/16" Diameter
    3/4"-0.0002" to 0"16,000Rockwell C50—10000000000000
    1"-0.0002" to 0"16,000Rockwell C50—10000000000000
    1 1/4"-0.0002" to 0"16,000Rockwell C50—10000000000000
    1 1/2"-0.0002" to 0"16,000Rockwell C50—10000000000000
    2"-0.0002" to 0"Not RatedRockwell C48ASME B18.8.210000000000000
     
    3/8" Diameter
    1/2"-0.0002" to 0"Not RatedRockwell C48ASME B18.8.210000000000000
    3/4"-0.0002" to 0"23,000Rockwell C50—10000000000000
    1"-0.0002" to 0"23,000Rockwell C50—10000000000000
    1 1/4"-0.0002" to 0"23,000Rockwell C50—10000000000000
    1 1/2"-0.0002" to 0"23,000Rockwell C50—10000000000000
    1 3/4"-0.0002" to 0"Not RatedRockwell C48ASME B18.8.210000000000000
    2"-0.0002" to 0"Not RatedRockwell C48ASME B18.8.210000000000000
    2 1/2"-0.0002" to 0"Not RatedRockwell C48ASME B18.8.2100000000000000
    3"-0.0002" to 0"Not RatedRockwell C48ASME B18.8.2100000000000000
     
    1/2" Diameter
    1"-0.0002" to 0"42,000Rockwell C50—10000000000000
    1 1/4"-0.0002" to 0"Not RatedRockwell C48ASME B18.8.210000000000000
    1 1/2"-0.0002" to 0"42,000Rockwell C50—10000000000000
    1 3/4"-0.0002" to 0"Not RatedRockwell C48ASME B18.8.210000000000000
    2"-0.0002" to 0"42,000Rockwell C50—10000000000000
    2 1/2"-0.0002" to 0"Not RatedRockwell C48ASME B18.8.210000000000000
    3"-0.0002" to 0"Not RatedRockwell C48ASME B18.8.2100000000000000
     
    Machinable 12L14 Carbon Steel
     
    2 mm Diameter
    4 mm-0.014 mm to 0 mmNot RatedRockwell B68ISO 2338-h81000000000000000
    6 mm-0.014 mm to 0 mmNot RatedRockwell B68ISO 2338-h81000000000000000
    8 mm-0.014 mm to 0 mmNot RatedRockwell B68ISO 2338-h81000000000000000
    10 mm-0.014 mm to 0 mmNot RatedRockwell B68ISO 2338-h81000000000000000
     
    3 mm Diameter
    6 mm-0.014 mm to 0 mmNot RatedRockwell B68ISO 2338-h810000000000000000
    8 mm-0.014 mm to 0 mmNot RatedRockwell B68ISO 2338-h810000000000000000
    10 mm-0.014 mm to 0 mmNot RatedRockwell B68ISO 2338-h810000000000000000
    12 mm-0.014 mm to 0 mmNot RatedRockwell B68ISO 2338-h810000000000000000
    16 mm-0.014 mm to 0 mmNot RatedRockwell B68ISO 2338-h85000000000000000
    20 mm-0.014 mm to 0 mmNot RatedRockwell B68ISO 2338-h85000000000000000
     
    4 mm Diameter
    8 mm-0.018 mm to 0 mmNot RatedRockwell B68ISO 2338-h810000000000000000
    10 mm-0.018 mm to 0 mmNot RatedRockwell B68ISO 2338-h810000000000000000
    12 mm-0.018 mm to 0 mmNot RatedRockwell B68ISO 2338-h85000000000000000
    14 mm-0.018 mm to 0 mmNot RatedRockwell B68ISO 2338-h8500000000000000
    16 mm-0.018 mm to 0 mmNot RatedRockwell B68ISO 2338-h85000000000000000
    20 mm-0.018 mm to 0 mmNot RatedRockwell B68ISO 2338-h8500000000000000
     
    5 mm Diameter
    10 mm-0.018 mm to 0 mmNot RatedRockwell B68ISO 2338-h85000000000000000
    12 mm-0.018 mm to 0 mmNot RatedRockwell B68ISO 2338-h85000000000000000
    14 mm-0.018 mm to 0 mmNot RatedRockwell B68ISO 2338-h85000000000000000
    16 mm-0.018 mm to 0 mmNot RatedRockwell B68ISO 2338-h85000000000000000
    20 mm-0.018 mm to 0 mmNot RatedRockwell B68ISO 2338-h85000000000000000
     
    6 mm Diameter
    12 mm-0.018 mm to 0 mmNot RatedRockwell B68ISO 2338-h85000000000000000
    16 mm-0.018 mm to 0 mmNot RatedRockwell B68ISO 2338-h85000000000000000
    20 mm-0.018 mm to 0 mmNot RatedRockwell B68ISO 2338-h85000000000000000
    24 mm-0.018 mm to 0 mmNot RatedRockwell B68ISO 2338-h85000000000000000
     
    8 mm Diameter
    16 mm-0.022 mm to 0 mmNot RatedRockwell B68ISO 2338-h82500000000000000
    18 mm-0.022 mm to 0 mmNot RatedRockwell B68ISO 2338-h82500000000000000
    20 mm-0.022 mm to 0 mmNot RatedRockwell B68ISO 2338-h82500000000000000
    24 mm-0.022 mm to 0 mmNot RatedRockwell B68ISO 2338-h82500000000000000
    30 mm-0.022 mm to 0 mmNot RatedRockwell B68ISO 2338-h8100000000000000
     
    10 mm Diameter
    20 mm-0.022 mm to 0 mmNot RatedRockwell B68ISO 2338-h850000000000000
    24 mm-0.022 mm to 0 mmNot RatedRockwell B68ISO 2338-h850000000000000
    30 mm-0.022 mm to 0 mmNot RatedRockwell B68ISO 2338-h850000000000000
    32 mm-0.022 mm to 0 mmNot RatedRockwell B68ISO 2338-h850000000000000
    40 mm-0.022 mm to 0 mmNot RatedRockwell B68ISO 2338-h850000000000000
     
    12 mm Diameter
    30 mm-0.027 mm to 0 mmNot RatedRockwell B68ISO 2338-h8500000000000000
    40 mm-0.027 mm to 0 mmNot RatedRockwell B68ISO 2338-h850000000000000
    50 mm-0.027 mm to 0 mmNot RatedRockwell B68ISO 2338-h8500000000000000
     
    Corrosion-Resistant Stainless Steel
    Image of Product. Front orientation. Dowel Pins. Undersized Tolerance, Plain Head.
    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.
    Lg.
    Dia. Tolerance
    Double Shear Breaking
    Strength
    Min.
    Hardness
    Specs. Met
    Mil. Spec.
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
     
    1/16" Diameter
    1/4"-0.0002" to 0"Not RatedRockwell B83—MIL-P-21143/2-26100000000000000
    3/8"-0.0002" to 0"Not RatedRockwell B83—MIL-P-21143/2-2810000000000000
    1/2"-0.0002" to 0"Not RatedRockwell B83—MIL-P-21143/2-3010000000000000
     
    3/32" Diameter
    1/4"-0.0002" to 0"Not RatedRockwell B83—MIL-P-21143/2-4610000000000000
    3/8"-0.0002" to 0"Not RatedRockwell B83—MIL-P-21143/2-4810000000000000
    1/2"-0.0002" to 0"Not RatedRockwell B83—MIL-P-21143/2-5010000000000000
     
    1/8" Diameter
    3/8"-0.0002" to 0"Not RatedRockwell B83—MIL-P-21143/2-6810000000000000
    1/2"-0.0002" to 0"Not RatedRockwell B83—MIL-P-21143/2-7010000000000000
    5/8"-0.0002" to 0"Not RatedRockwell B83—MIL-P-21143/2-7110000000000000
    3/4"-0.0002" to 0"Not RatedRockwell B83—MIL-P-21143/2-7210000000000000
     
    3/16" Diameter
    1/2"-0.0002" to 0"Not RatedRockwell B83—MIL-P-21143/2-11010000000000000
    5/8"-0.0002" to 0"Not RatedRockwell B83—MIL-P-21143/2-11110000000000000
    3/4"-0.0002" to 0"Not RatedRockwell B83—MIL-P-21143/2-11210000000000000
     
    1/4" Diameter
    1/2"-0.0002" to 0"Not RatedRockwell B83—MIL-P-21143/2-15010000000000000
    3/4"-0.0002" to 0"Not RatedRockwell B83——10000000000000
    1"-0.0002" to 0"Not RatedRockwell B83——10000000000000
     
    5/16" Diameter
    3/4"-0.0002" to 0"Not RatedRockwell B83——10000000000000
    1"-0.0002" to 0"Not RatedRockwell B83——10000000000000
    1 1/4"-0.0002" to 0"Not RatedRockwell B83——10000000000000
    1 1/2"-0.0002" to 0"Not RatedRockwell B83——10000000000000
     
    3/8" Diameter
    3/4"-0.0002" to 0"Not RatedRockwell B83——10000000000000
    1"-0.0002" to 0"Not RatedRockwell B83——10000000000000
    1 1/4"-0.0002" to 0"Not RatedRockwell B83——10000000000000
    1 1/2"-0.0002" to 0"Not RatedRockwell B83——10000000000000
     
    1/2" Diameter
    1"-0.0002" to 0"Not RatedRockwell B83——10000000000000
    1 1/2"-0.0002" to 0"Not RatedRockwell B83——10000000000000
    2"-0.0002" to 0"Not RatedRockwell B83——10000000000000
     
    1 mm Diameter
    4 mm-0.014 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—10000000000000000
    5 mm-0.014 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—10000000000000000
    6 mm-0.014 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—10000000000000000
     
    1.5 mm Diameter
    4 mm-0.014 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—500000000000000
    5 mm-0.014 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—500000000000000
    6 mm-0.014 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—500000000000000
    8 mm-0.014 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—500000000000000
    10 mm-0.014 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—500000000000000
     
    2 mm Diameter
    4 mm-0.014 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—10000000000000000
    5 mm-0.014 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—500000000000000
    6 mm-0.014 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—10000000000000000
    8 mm-0.014 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—10000000000000000
    10 mm-0.014 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—10000000000000000
    12 mm-0.014 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—5000000000000000
    16 mm-0.014 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—5000000000000000
     
    2.5 mm Diameter
    6 mm-0.014 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—5000000000000000
    8 mm-0.014 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—5000000000000000
    10 mm-0.014 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—5000000000000000
     
    3 mm Diameter
    5 mm-0.014 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—5000000000000000
    6 mm-0.014 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—10000000000000000
    8 mm-0.014 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—5000000000000000
    10 mm-0.014 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—5000000000000000
    12 mm-0.014 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—5000000000000000
    14 mm-0.014 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—5000000000000000
    16 mm-0.014 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—5000000000000000
    20 mm-0.014 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—250000000000000
     
    4 mm Diameter
    6 mm-0.018 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—250000000000000
    8 mm-0.018 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—5000000000000000
    10 mm-0.018 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—5000000000000000
    12 mm-0.018 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—5000000000000000
    14 mm-0.018 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—250000000000000
    16 mm-0.018 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—5000000000000000
    20 mm-0.018 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—2500000000000000
     
    5 mm Diameter
    8 mm-0.018 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—250000000000000
    10 mm-0.018 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—2500000000000000
    12 mm-0.018 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—2500000000000000
    14 mm-0.018 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—250000000000000
    16 mm-0.018 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—2500000000000000
    20 mm-0.018 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—2500000000000000
     
    6 mm Diameter
    10 mm-0.018 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—100000000000000
    12 mm-0.018 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—2500000000000000
    14 mm-0.018 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—100000000000000
    16 mm-0.018 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—2500000000000000
    18 mm-0.018 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—100000000000000
    20 mm-0.018 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—2500000000000000
    24 mm-0.018 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—50000000000000
    30 mm-0.018 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—1000000000000000
     
    8 mm Diameter
    16 mm-0.022 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—50000000000000
    18 mm-0.022 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—50000000000000
    20 mm-0.022 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—50000000000000
    24 mm-0.022 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—500000000000000
     
    10 mm Diameter
    20 mm-0.022 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—500000000000000
    24 mm-0.022 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—500000000000000
    32 mm-0.022 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—500000000000000
    40 mm-0.022 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—500000000000000
     
    12 mm Diameter
    30 mm-0.027 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—500000000000000
    40 mm-0.027 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—10000000000000
    50 mm-0.027 mm to 0 mmNot RatedRockwell B95ISO 2338-h8—10000000000000
     
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