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    46 Products

    Dowel Pins

    Precisely align machine parts and prevent movement during assembly. These dowel pins are machined to tight tolerances and have a uniform diameter for a snug fit. They can also be used as a pivot, shaft, or hinge to join moving components. Since dowel pins can be hard to remove, they are best suited for permanent fixtures that don't require frequent adjustments or disassembly.
    Steel
    Image of Product. Front orientation. Dowel Pins. Plain Head, Standard Tolerance.
    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.
    Lg.
    Dia. Tolerance
    Double Shear Breaking
    Strength
    Min.
    Hardness
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    High-Strength Alloy Steel
     
    1 1/4" Diameter
    1 1/2"0.0001" to 0.0003"Not RatedRockwell C50ASME B18.8.2198381A950000000
    2"0.0001" to 0.0003"Not RatedRockwell C50ASME B18.8.2198381A95200000
    3"0.0001" to 0.0003"Not RatedRockwell C50ASME B18.8.2198381A95600000
    6"0.0001" to 0.0003"Not RatedRockwell C50ASME B18.8.2198381A96800000
     
    Corrosion-Resistant Stainless Steel
    Image of Product. Front orientation. Dowel Pins. Plain Head, Standard Tolerance.
    High-Strength Machinable 416 Stainless Steel—These pins hold their shape under stress and friction from moving parts. In addition to being the strongest stainless steel alloy, 416 is also the most machinable, so you can shape these pins to fit your hole. However, they are the least corrosion-resistant stainless steel option.
    Lg.
    Dia. Tolerance
    Double Shear Breaking
    Strength
    Min.
    Hardness
    Pkg.
    Qty.
    Pkg.
    High-Strength Machinable 416 Stainless Steel
     
    1 1/4" Diameter
    1 1/2"0.0001" to 0.0003"Not RatedRockwell C36198380A790000000
    2"0.0001" to 0.0003"Not RatedRockwell C36198380A79200000
    3"0.0001" to 0.0003"Not RatedRockwell C36198380A79400000
    4"0.0001" to 0.0003"Not RatedRockwell C36198380A79600000
    6"0.0001" to 0.0003"Not RatedRockwell C36198380A79800000
     
    Steel with Material Certificate
    Image of Product. Front orientation. Dowel Pins. Plain Head, Standard Tolerance.
    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.
    Material Certificate Icon
    Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
    Lg.
    Dia. Tolerance
    Double Shear Breaking
    Strength
    Min.
    Hardness
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    High-Strength Alloy Steel
     
    1 1/4" Diameter
    4"0.0001" to 0.0003"Not RatedRockwell C50ASME B18.8.2198381A960000000
     

    Domed-Head Locating and Support Buttons

    Image of Product. Front orientation. Contains Annotated. Locating and Support Buttons. Domed-Head Locating and Support Buttons.
    Support rounded or irregularly shaped workpieces from the bottom or side with minimal contact. Press the stud into a drilled hole for permanent installation. Also known as rest buttons.
    Stud
    Tolerance
    Dia.
    Lg.
    Dia.
    Lg.
    Lg.
    Stud Dia.
    Each
    Steel
    1 1/4"1 1/4"3/4"7/8"-0.002" to 0.002"-0.0005" to 0"1371N21000000
     

    Clevis Pins

    The most commonly used clevis pins—just slide a cotter pin into the hole to secure parts. These pins have a flat, low-profile head to fit in tight spaces. They're less likely to get in the way than pins with a loop grip or T-handle but aren’t as easy to grab if you want to remove them frequently. Add your own cotter pin, or choose a clevis pin that includes a reusable hairpin cotter.
    Steel
    Image of Product. Front orientation. Contains Annotated. Clevis Pins. Clevis Pins, Cotter Pin Not Included.

    Cotter Pin Not

    Included

    Carbon Steel—Stronger than stainless steel, these pins won't deform from stress and vibration. They perform best in dry environments since moisture will cause them to rust.
    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.
    Head
    Usable
    Lg.
    Dia. Tolerance
    For Max.
    Cotter Pin Dia.
    Min.
    Hardness
    Lg.
    Dia.
    Ht.
    Pkg.
    Qty.
    Pkg.
    Carbon Steel
     
    1 1/4" Diameter
    2 3/8"-0.020" to 0.000"3/16"Rockwell B633"1 31/64"11/32"198306A692000000
    3 3/8"-0.020" to 0.000"3/16"Rockwell B634"1 1/2"11/32"198306A85100000
    4 3/8"-0.020" to 0.000"3/16"Rockwell B635"1 1/2"11/32"198306A85200000
    5 3/8"-0.020" to 0.000"3/16"Rockwell B636"1 1/2"11/32"198306A85300000
     
    Zinc-Plated Carbon Steel
     
    1 1/4" Diameter
    3 3/8"-0.020" to 0.000"3/16"Rockwell B634"1 31/64"11/32"197245A77400000
    4 3/8"-0.020" to 0.000"3/16"Rockwell B635"1 31/64"11/32"197245A77500000
    5 3/8"-0.020" to 0.000"3/16"Rockwell B636"1 31/64"11/32"197245A77600000
     
    Corrosion-Resistant Stainless Steel
    Image of Product. Front orientation. Contains Annotated. Clevis Pins. Clevis Pins, Cotter Pin Not Included.

    Cotter Pin Not

    Included

    High-Strength 17-4 PH Stainless Steel—The strongest stainless steel pins we offer, these are the least likely to deform due to stress and vibration. Similar to 18-8 stainless steel, they're suitable for most wet and outdoor environments. However, they won't hold up to the harsh conditions and chemicals that 316 stainless steel can.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these pins resist rusting. They're strong enough to fasten most components but won't withstand stress and vibration as well as steel.
    Head
    Usable
    Lg.
    Dia. Tolerance
    For Max.
    Cotter Pin Dia.
    Min.
    Hardness
    Lg.
    Dia.
    Ht.
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
     
    1 1/4" Diameter
    2 3/8"-0.004" to -0.002"3/16"Rockwell B803"1 1/2"11/32"190378A268000000
    3 3/8"-0.020" to 0.000"1/2"Rockwell B804"1 1/2"11/32"192390A84100000
    3 3/8"-0.004" to -0.002"3/16"Rockwell B804"1 1/2"11/32"190378A26900000
    4 3/8"-0.020" to 0.000"1/2"Rockwell B805"1 1/2"11/32"192390A84900000
     
    High-Strength 17-4 PH Stainless Steel
     
    1 1/4" Diameter
    2 3/8"-0.004" to -0.002"3/16"Rockwell C283"1 1/2"11/32"193392A27300000
    3 3/8"-0.004" to -0.002"3/16"Rockwell C284"1 1/2"11/32"193392A27400000
    4 3/8"-0.004" to -0.002"3/16"Rockwell C285"1 1/2"11/32"193392A27500000
     

    Screw-Mount Locating and Support Buttons

    Image of Product. Front orientation. Locating and Support Buttons. Screw-Mount Locating and Support Buttons.
    Image of Product. Flat Head. Top orientation. ZoomedIn view. Contains Border. Locating and Support Buttons. Screw-Mount Locating and Support Buttons.

    Flat Head

    Also known as rest buttons, these buttons support workpieces and fixtures from the bottom or side. Mount them onto a screw or stud extending from your jig or table.
    Round—Round buttons have an unthreaded, counterbored through hole. Mount them to a socket head cap screw.
    Dia.
    Lg.
    Lg. Tolerance
    For Mounting
    Screw Size
    Mounting Fasteners
    Included
    Each
    Steel—Round with Flat Head
    1 1/4"7/8"-0.001" to 0.001"1/2"
    		No8506A2700000
    1 1/4"1 1/2"0" to 0.001"3/8"
    		No8506A11300000
    1 1/4"2"0" to 0.001"3/8"
    		No8506A11500000
     

    Quarter-Turn Quick-Change Fixture Clamps

    Image of System. Side1 orientation. Exploded view. Contains Annotated. Fixture Clamps. Quarter-Turn Quick-Change Fixture Clamps.
    Install these clamps into fixture plates, machine subplates, and tombstones to quickly swap components in or out of your machining setup. They lock or unlock with the turn of a knob. Since they locate while they clamp, you can accurately position components with repeatability of ±0.1".
    For accurate positioning, use at least two sets of clamps and cam receptacles. Install receptacles into a base plate and clamps into a fixture plate. Line up the two plates, insert the clamps into the receptacles, then turn the knobs to secure your fixture in place. If you need more holding capacity, use additional clamps and receptacles.
    Cam Receptacles
    Image of Product. Fastener Mount. Front orientation. Fixture Clamps. Quarter-Turn Quick-Change Fixture Clamps, Cam Receptacles, Fastener Mount.
    Image of Product. Thread In. Front orientation. Fixture Clamps. Quarter-Turn Quick-Change Fixture Clamps, Cam Receptacles, Thread In.

    Fastener Mount

    Thread In

    Fastener Mount—Fastener-mount receptacles have three recessed holes on the face so you can secure them to your base plate with the included screws.
    Thread In—Thread-in receptacles have a threaded body for installation in a tapped hole. You hold them in place with the included nut, so they’re good for thin base plates.
    For Fixture
    Plate Thk.
    Min.
    Max.
    For Clamp
    Shank Dia., mm
    Dia.
    Thk.
    Thread Size
    Material
    Mounting Fasteners
    Included
    Each
    Fastener Mount
    1/2"Not Rated81 1/4"7/16"—Nickel-Plated SteelYes9952N124000000
     
    Thread In
    1/4"1/2"81 1/4"11/16"M20 × 1.5 mmNickel-Plated Steel—9952N12500000
     

    Impact-Resistant Alignment Pins

    Image of Product. Front orientation. Contains Annotated. Alignment Pins. Impact-Resistant Alignment Pins.
    Image of Product. Front orientation. Contains Annotated. Alignment Pins. Impact-Resistant Alignment Pins, Alignment Pins with Tether Hole.

    Alignment Pins with Tether Hole

    Often called bull pins, these pins are designed to resist mushrooming caused by repeated pounding. The large striking surface allows you to drive the pins quickly and efficiently. Use alignment pins to align structural components such as I-beams and angle irons for bolting, riveting, and welding.
    Alignment Pins with Tether Hole—For added safety, choose pins with a tether hole while working from heights.
    Body
    Point
    Dia.
    Taper
    Lg.
    Dia.
    Overall
    Lg.
    Shape
    Texture
    Each
    Steel
     
    Alignment Pins
    5/16"6"1 1/4"13"RoundSmooth6057A12000000
     
    Alignment Pins with Tether Hole
    5/16"6 5/16"1 1/4"13 3/4"RoundSmooth6057A1400000
     

    Clevis Pins with Locking Retainer

    Secure and release these heavy duty pins with one hand. Swing the welded solid steel retainer closed, and it locks onto the pin until you press the lever to open. Unlike other clevis pins, you don’t have to reach around to insert a cotter pin or worry about it falling out. These are often used for towing since they make it easy to hitch and unhitch your equipment.
    Steel
    Image of Product. Back orientation. Contains Annotated. Clevis Pins. Clevis Pins with Locking Retainer.
    Image of Product. Front orientation. Clevis Pins. Clevis Pins with Locking Retainer.
    Powder-Coated Carbon Steel—A shiny black finish creates a barrier against rust in damp and outdoor environments. While not as corrosion resistant as stainless steel, these pins are stronger and won't deform under stress.
    Dia.
    Usable
    Lg.
    Dia. Tolerance
    Retainer
    Clearance
    Min.
    Hardness
    Lg.
    Each
    Black-Powder-Coated Carbon Steel
     
    Square-Retainer
    1 1/4"7"-0.003" to 0.010"3 7/8"Rockwell C3211"91533A600000000
     

    Alignment Pins

    Image of Product. Front orientation. Contains Annotated. Alignment Pins. Alignment Pins.
    Line up holes by driving these pins through existing rivet, pin, and bolt holes in multiple pieces of metal. Alternatively known as lineup taper punches.
    Body
    Point
    Dia.
    Taper
    Lg.
    Dia.
    Overall
    Lg.
    Shape
    Texture
    Each
    Steel
    7/16"10 1/2"1 1/4"12"RoundSmooth6055A5000000
    7/16"10 1/2"1 1/4"15"RoundSmooth6055A800000
     

    Loop-Grip Clevis Pins with Toggle

    Image of Product. Front orientation. Contains Annotated. Clevis Pins. Loop-Grip Clevis Pins with Toggle.
    For components you need to lock in place but also disconnect frequently, these pins have a toggle end and large loop handle. No need for a separate cotter pin, the toggle swivels so you can insert into a hole and then swivels back to secure. Fold down the handle to save space when installed.
    Steel
    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.
    Usable
    Lg.
    Dia.
    Tolerance
    Min.
    Hardness
    Each
    Zinc-Plated Carbon Steel
     
    1 1/4" Diameter
    7"-0.010" to 0"Rockwell B7097141A712000000
     

    T-Handle Clevis Pins

    Image of Product. Front orientation. Contains Annotated. Clevis Pins. T-Handle Clevis Pins.
    With the widest grip, these pins give you the most leverage. They’re also the easiest to grab with gloved or slippery hands but take up the most space when installed. To secure, slide a cotter pin (not included) into the hole.
    Steel
    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.
    Usable
    Lg.
    Dia. Tolerance
    For Max.
    Cotter Pin Dia.
    Min.
    Hardness
    Handle
    Color
    Each
    Black-Zinc-Plated Carbon Steel
     
    1 1/4" Diameter
    7"-0.003" to 0.001"1/4"Rockwell B90Black91640A170000000
     

    Tethered Loop-Grip Clevis Pins

    A lanyard or chain prevents your pin from getting lost when removed. With a large loop handle that's easy to grip and pull, these clevis pins are often used for towing and other applications where you regularly secure and release components.
    Steel
    Image of Product. With Cotter Pin and Lanyard. Front orientation. Contains Annotated. Clevis Pins. Tethered Loop-Grip Clevis Pins, , Cotter Pin Included.
    Image of Product. With Cotter Pin and Lanyard. Front orientation. Contains Annotated. Clevis Pins. Tethered Loop-Grip Clevis Pins, Cotter Pin Included, , Black, Red Handle.
    Image of Product. With Linch Pin and Chain. Front orientation. Contains Annotated. Clevis Pins. Tethered Loop-Grip Clevis Pins, , Linch Pin Included.

    With Cotter Pin and Lanyard

    With Cotter Pin and Lanyard

    With Linch Pin and Chain

    Painted Carbon Steel—Stronger than stainless steel, these pins won't deform from stress and vibration. The dark enamel creates a finished look but offers minimal corrosion resistance. They're best for dry environments.
    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.
    Zinc-Yellow-Chromate-Plated Carbon Steel—With a more durable finish than clear zinc plating, these pins hold up in wet and outdoor environments although not as well as stainless steel. Because the plating resists wear and the steel holds up under stress, they're good for pivoting parts, like rod end linkages.
    Cotter Pin Included—The hairpin cotter is quicker to install and remove than a linch pin but not as secure.
    Linch Pin Included—Less likely to get knocked or shaken out of place than a hairpin, the linch pin has a ring that snaps down and locks.
    Usable
    Lg.
    Dia. Tolerance
    For Max.
    Cotter Pin Dia.
    Min.
    Hardness
    Head
    Dia.
    Handle
    Color
    Each
    Zinc-Plated Carbon Steel with Cotter Pin and Lanyard
     
    1 1/4" Diameter
    7"-0.016" to 0.016"3/16"Rockwell C192"—98412A519000000
     
    Zinc-Yellow-Chromate-Plated Carbon Steel with Cotter Pin and Lanyard
     
    1 1/4" Diameter
    7"-0.016" to 0.016"3/16"Rockwell C192"—98412A24700000
     
    Zinc-Yellow-Chromate-Plated Carbon Steel with Linch Pin and Chain
     
    1 1/4" Diameter
    7"-0.012" to 0.000"9/32"Rockwell C281 7/8"—98497A67500000
     
    Black-Painted Carbon Steel with Cotter Pin and Lanyard
     
    1 1/4" Diameter
    8 1/2"-0.003" to 0.002"17/64"Rockwell C32—Red91594A36000000
    12"-0.003" to 0.002"11/64"Rockwell C32—Red91594A67000000
     
    Corrosion-Resistant Stainless Steel
    Image of Product. With Cotter Pin and Lanyard. Front orientation. Contains Annotated. Clevis Pins. Tethered Loop-Grip Clevis Pins, Cotter Pin Included, .

    With Cotter Pin and Lanyard

    Image of Product. With Linch Pin and Chain. Front orientation. Contains Annotated. Clevis Pins. Tethered Loop-Grip Clevis Pins, , Linch Pin Included.

    With Linch Pin and Chain

    High-Strength 17-4 PH Stainless Steel—The strongest stainless steel pins we offer, these are the least likely to deform due to stress and vibration. Similar to 18-8 stainless steel, they're suitable for most wet and outdoor environments. However, they won't hold up to the harsh conditions and chemicals that 316 stainless steel can.
    Cotter Pin Included—The hairpin cotter is quicker to install and remove than a linch pin but not as secure.
    Linch Pin Included—Less likely to get knocked or shaken out of place than a hairpin, the linch pin has a ring that snaps down and locks.
    Usable
    Lg.
    Dia. Tolerance
    For Max.
    Cotter Pin Dia.
    Min.
    Hardness
    Head
    Dia.
    Each
    High-Strength 17-4 PH Stainless Steel with Cotter Pin and Lanyard
     
    1 1/4" Diameter
    7"-0.016" to 0.016"3/16"Rockwell B802"98412A504000000
     
    High-Strength 17-4 PH Stainless Steel with Linch Pin and Chain
     
    1 1/4" Diameter
    7"-0.016" to 0.016"17/64"Rockwell B802"98497A49000000
     

    Tooth-Slotted Spring Pins

    Image of Product. Front orientation. Spring Pins. Tooth-Slotted Spring Pins.
    Image of Product. End View. Side1 orientation. Spring Pins. Tooth-Slotted Spring Pins.

    End View

    The interlocking teeth resist pulling forces that can cause other slotted pins to wiggle out of place. These pins stay in position under vibration and in holes that aren't perfectly round. Compress pins to insert them in a hole. Once installed, they expand slightly and create tension to hold parts in place. Also known as roll pins.
    Black-Oxide Spring Steel—These pins won't deform from stress and vibration. The dark, matte coating creates a finished look with minimal corrosion resistance, so they're best for dry environments.
    Lg.
    For Hole Dia.
    Wall
    Thk.
    Double Shear Breaking
    Strength, lbf
    Min.
    Hardness
    Each
    Black-Oxide Spring Steel
     
    1 1/4" Diameter
    4"1.25" to 1.252"0.23"53,500Rockwell C4290354A118000000
    6"1.25" to 1.252"0.23"53,500Rockwell C4290354A12100000
     
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