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    14 Products

    Partially Grooved Dowel Pins with Notch

    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"2598400A360000000
    1/2"0.094"-0.002" to 0"0.101"-0.003" to 0.003"Parallel850Not Rated1/4"2598400A36100000
     

    Tight-Tolerance Oil-Hardening O1 Tool Steel Rods

    Image of Product. Front orientation. Steel. Tight-Tolerance Oil-Hardening O1 Tool Steel Rods.
    Ready for turning in a lathe, these rods are precision ground to a tight diameter tolerance. They’re also known as drill rod. Often used for dies, punches, and gauges, O1 tool steel is an oil-hardening material that resists wear and abrasion. It can also be surface hardened with heat treating for added wear resistance.
    Material Certificate Icon
    Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
    Dia.
    Dia. Tolerance
    Fabrication
    Heat
    Treatment
    Yield Strength,
    psi
    Mechanical
    Finish
    Hardness
    Max. Hardness After
    Heat Treatment
    Specs.
    Met
    3 ft.
    Long
    6 ft.
    Long
    0.101"-0.0003" to 0.0003"Hot RolledAnnealed50,000Precision GroundRockwell B90 (Medium)Rockwell C65ASTM A6818893K1370000000000

    Fully Grooved Dowel Pins

    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. Plain Head, Standard Tolerance, 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.
    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
    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 Rated2598400A110000000
    1/2"0.094"-0.002" to 0"0.101"-0.003" to 0.003"Tapered850Not Rated2598400A11100000
     
    Corrosion-Resistant Stainless SteelAbout Corrosion-Resistant Stainless Steel
    Image of Product. Front orientation. Dowel Pins. Plain Head, Standard Tolerance, 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 Rated1098400A60000000
    1/2"0.094"-0.002" to 0"0.101"-0.003" to 0.003"TaperedNot RatedNot Rated1098400A60100000
     

    Partially Grooved Dowel Pins

    The grooved section secures these pins while the smooth portion is free to act as a pivot or hinge. The grooves pinch shut when installed, creating tension to lock in place. They fit tighter than standard dowel pins and resist pulling from movement and vibration, even in imperfect holes.
    For the best fit, drill your hole slightly larger than the nominal diameter shown.
    Half Grooved
    Image of ProductInUse. Front orientation. Dowel Pins. Plain Head, Standard Tolerance, Partially Grooved, Half Grooved.
    Image of Product. Back orientation. Dowel Pins. Plain Head, Standard Tolerance, Partially Grooved, 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
    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"2598400A321000000
    1/2"0.094"-0.002" to 0"0.101"-0.003" to 0.003"Parallel850Not Rated1/4"2598400A32200000
     
    Center Grooved
    Image of ProductInUse. Front orientation. Dowel Pins. Plain Head, Standard Tolerance, Partially Grooved, Center Grooved.
    Image of Product. Front orientation. Dowel Pins. Plain Head, Standard Tolerance, Partially Grooved, 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.
    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"2598400A235000000
    1/2"0.094"-0.002" to 0"0.101"-0.003" to 0.003"Parallel850Not Rated1/4"2598400A23600000
     
    Quarter Grooved
    Image of ProductInUse. Front orientation. Dowel Pins. Plain Head, Standard Tolerance, Partially Grooved, Quarter Grooved.
    Image of Product. Front orientation. Dowel Pins. Plain Head, Standard Tolerance, Partially Grooved, 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"2598400A001000000
    1/2"0.094"-0.002" to 0"0.101"-0.003" to 0.003"Parallel850Not Rated1/8"2598400A00200000
     

    Tight-Tolerance Water-Hardening W1 Tool Steel Rods

    Image of Product. Front orientation. Steel. Tight-Tolerance Water-Hardening W1 Tool Steel Rods.
    Ready for turning in your lathe, these rods are precision ground and held to strict diameter and straightness tolerances. Also known as drill rod. With far less alloy content than other tool steel, W1 is the most machinable we offer. These rods are often used to make hammers, files, and reamers—tools that don't require the dimensional stability of A2 or O1. These rods are also decarb-free, which means any surface flaws created during the manufacturing process have been removed. This makes them even more machinable and leads to better results from heat treating or finishing. Heat treat the surface for extra wear resistance. Or, quench this steel in water to boost its hardness and strength, giving it a sharper, more durable edge for small tools.
    Material Certificate Icon
    Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
    Dia.
    Dia. Tolerance
    Drill Bit
    Size
    Fabrication
    Heat
    Treatment
    Yield Strength,
    psi
    Mechanical
    Finish
    Hardness
    Max. Hardness After
    Heat Treatment
    Specs.
    Met
    3 ft.
    Long
    6 ft.
    Long
    0.101"0.000" to 0.0003"38 Ga.
    		Hot RolledAnnealed50,000Precision GroundRockwell B95 (Medium)Rockwell C65ASTM A6868890K1350000000000
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