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    100 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.,
    mm
    Dia. Tolerance,
    mm
    Double Shear Breaking
    Strength, lbf
    Min.
    Hardness
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    High-Strength Alloy Steel
     
    1 mm Diameter
    80.002 to 0.008Not RatedRockwell C52DIN 6325-m6, ISO 87345091595A954000000
     
    1.5 mm Diameter
    80.002 to 0.008Not RatedRockwell C52DIN 6325-m6, ISO 87345091595A00800000
     
    2 mm Diameter
    80.002 to 0.008Not RatedRockwell C52DIN 6325-m6, ISO 87345091595A02300000
     
    2.5 mm Diameter
    80.002 to 0.008Not RatedRockwell C52DIN 6325-m6, ISO 87345091595A06400000
     
    3 mm Diameter
    80.002 to 0.008Not RatedRockwell C52DIN 6325-m6, ISO 873410091595A10400000
     
    4 mm Diameter
    80.004 to 0.012Not RatedRockwell C52DIN 6325-m6, ISO 87345091595A15000000
     
    5 mm Diameter
    80.004 to 0.0124,600Rockwell C52DIN 6325-m6, ISO 87342591595A1780000
     
    6 mm Diameter
    80.004 to 0.0126,600Rockwell C52DIN 6325-m6, ISO 87342591595A43600000
     
    8 mm Diameter
    80.006 to 0.015Not RatedRockwell C52DIN 6325-m6, ISO 8734591595A1560000
     
    Corrosion-Resistant Stainless Steel
    Image of Product. Front orientation. Dowel Pins. Plain Head, Standard Tolerance.
    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.
    Highly Corrosion-Resistant 316 Stainless Steel—Our most corrosion-resistant pins, these hold up in just about any environment. They won't degrade from exposure to weather, salt water, and most chemicals. Like 18-8 stainless steel, they're strong enough to join most components but won't withstand stress and vibration as well as steel.
    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.,
    mm
    Dia. Tolerance,
    mm
    Double Shear Breaking
    Strength
    Min.
    Hardness
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
     
    0.8 mm Diameter
    80.002 to 0.008Not RatedNot RatedISO 2338-m61091585A706000000
     
    1 mm Diameter
    80.002 to 0.008Not RatedNot RatedISO 2338-m610091585A06200000
     
    1.5 mm Diameter
    80.002 to 0.008Not RatedNot RatedISO 2338-m610091585A13300000
     
    2 mm Diameter
    80.002 to 0.008Not RatedNot RatedISO 2338-m610091585A21400000
     
    2.5 mm Diameter
    80.002 to 0.008Not RatedNot RatedISO 2338-m65091585A27500000
     
    5 mm Diameter
    80.004 to 0.012Not RatedNot RatedISO 2338-m62591585A5060000
     
    6 mm Diameter
    80 to 0.012Not RatedNot RatedISO 2338-m61091585A7780000
     
    8 mm Diameter
    80.006 to 0.015Not RatedNot RatedISO 2338-m6191585A4050000
     
    Highly Corrosion-Resistant 316 Stainless Steel
     
    1 mm Diameter
    80.002 to 0.008Not RatedNot RatedISO 2338-m61093600A03300000
     
    1.5 mm Diameter
    80.002 to 0.008Not RatedNot RatedISO 2338-m65093600A06900000
     
    2 mm Diameter
    80.002 to 0.008Not RatedNot RatedISO 2338-m62593600A1910000
     
    2.5 mm Diameter
    80.002 to 0.008Not RatedNot RatedISO 2338-m62593600A2540000
     
    4 mm Diameter
    80.004 to 0.012Not RatedNot RatedISO 2338-m61093600A4190000
     
    5 mm Diameter
    80.004 to 0.012Not RatedNot RatedISO 2338-m61093600A5000000
     
    6 mm Diameter
    80 to 0.012Not RatedNot RatedISO 2338-m61093600A57700000
     
    8 mm Diameter
    80.006 to 0.015Not RatedNot RatedISO 2338-m6193600A3130000
     
    High-Strength Machinable 416 Stainless Steel
     
    2 mm Diameter
    80.002 to 0.009Not RatedRockwell C36—598380A1030000
     
    2.5 mm Diameter
    80.002 to 0.009Not RatedRockwell C36—598380A1140000
     
    3 mm Diameter
    80.004 to 0.012Not RatedRockwell C36—598380A1250000
     
    Corrosion-Resistant Stainless Steel with Material Certificate
    Image of Product. Front orientation. Dowel Pins. Plain Head, Standard Tolerance.
    Pins include a report with a traceable lot number and a description of their chemical, physical, and mechanical properties.
    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.
    Highly Corrosion-Resistant 316 Stainless Steel—Our most corrosion-resistant pins, these hold up in just about any environment. They won't degrade from exposure to weather, salt water, and most chemicals. Like 18-8 stainless steel, they're strong enough to join most components but won't withstand stress and vibration as well as steel.
    Material Certificate Icon
    Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
    Lg.,
    mm
    Dia. Tolerance,
    mm
    Double Shear Breaking
    Strength
    Min.
    Hardness
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
     
    3 mm Diameter
    80.002 to 0.008Not RatedNot RatedISO 2338-m65091585A348000000
     
    4 mm Diameter
    80.004 to 0.012Not RatedNot RatedISO 2338-m65091585A43500000
     
    Highly Corrosion-Resistant 316 Stainless Steel
     
    0.8 mm Diameter
    80.002 to 0.008Not RatedNot RatedISO 2338-m6593600A1040000
     
    3 mm Diameter
    80.002 to 0.008Not RatedNot RatedISO 2338-m62593600A3030000
     

    Captive Pins

    Image of Product. Front orientation. Captive Pins.
    Also known as pilot pins, use these pins to position, pivot, and align components. To install, punch or drill a hole in sheet metal, then use a punch and anvil or arbor press to clinch the head to the metal.
    Pins are passivated for added protection against corrosion and oxidation. The ends are chamfered for easy insertion.
    TPS PEM® Series—TPS PEM® Series pins work on steel or aluminum sheets. Made of 18-8 stainless steel, they offer a balance of strength and corrosion resistance and may be mildly magnetic.
    TP4 PEM® Series—TP4 PEM® Series pins work on stainless steel sheets. Made of 400 series stainless steel, they resist wear and abrasion, but are not as corrosion resistant as 18-8 stainless steel pins. Pins may be mildly magnetic.
    MPP PEM® Series—MPP PEM® Series pins work with most materials. Made of A286 stainless steel, they're our strongest captive pins, with corrosion resistance comparable to 18-8 stainless steel pins. They are nonmagnetic.
    Lg.,
    mm
    Dia. Tolerance,
    mm
    PEM® Series
    No.
    PEM® Part
    No.
    For Min.
    Panel Thk., mm
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
     
    3 mm Diameter
    8-0.05 to 0.05TPSTPS-3MM-812595648A69700000
     
    4 mm Diameter
    8-0.05 to 0.05TPSTPS-4MM-812595648A7010000
     
    400 Series Stainless Steel
     
    3 mm Diameter
    8-0.05 to 0.05TP4TP4-3MM-812595648A7120000
     
    4 mm Diameter
    8-0.05 to 0.05TP4TP4-4MM-812595648A7160000
     
    A286 Stainless Steel
     
    1.5 mm Diameter
    8-0.038 to 0.038MPPMPP-1.5MM-80.52595648A29000000
     
    2 mm Diameter
    8-0.038 to 0.038MPPMPP-2MM-80.52595648A34000000
     

    Single-End Studs

    Image of Product. Front orientation. Single-End Studs.
    Screw the threaded end of these studs into a tapped hole, and use the unthreaded end as a pivot point, hinge, shaft, or locator pin.
    Steel—These studs are steel for strength and wear resistance. They’re best for dry environments since moisture will cause them to rust. All meet ISO 2342 (formerly DIN 427), an international standard for fastener dimensions.
    Shaft, mm
    Lg.,
    mm
    Thread
    Lg., mm
    Lg.
    Dia.
    Dia.
    Tolerance
    Tensile
    Strength
    Hardness
    Drive
    Style
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Steel
     
    M4 × 0.7 mm
    84.83.24-0.15 to 0Not RatedRockwell B75Slotted
    		DIN 427, ISO 23421097493A153000000
     
    M5 × 0.8 mm
    8625-0.18 to 0Not RatedRockwell B75Slotted
    		DIN 427, ISO 23421097493A15600000
     

    Slotted Spring Pins

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

    End View

    Squeeze these pins into holes and they expand slightly, creating tension to hold parts in place. They are often used as hinge pins and as fasteners for springs and power transmission components. An alternative to dowel pins, they're lighter in weight with a hollow center and don’t need a precise hole. Also known as roll pins.
    Spring Steel—These pins won't deform from stress and vibration. Although they're stronger than stainless steel, they're best for dry environments since moisture will cause them to rust.
    Corrosion-Resistant 18-8 Stainless Steel—The choice for wet and outdoor environments, these pins resist rusting. They are strong enough to join most components but won't withstand extreme stress and vibration as well as steel.
    Lg.,
    mm
    For Hole
    Dia., mm
    Wall Thk.,
    mm
    Double Shear Breaking
    Strength, lbf
    Min.
    Hardness
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Spring Steel
     
    1 mm Diameter
    810.2150Rockwell C42ISO 875210091611A06900000
     
    1.5 mm Diameter
    81.5 to 1.60.3350Rockwell C42DIN 1481, ISO 875210091611A08300000
     
    2 mm Diameter
    820.2330Rockwell C42DIN 7346, ISO 1333710097161A10400000
    82 to 2.10.4600Rockwell C42ISO 875220091611A10300000
     
    2.5 mm Diameter
    82.50.25530Rockwell C42DIN 7346, ISO 1333710097161A11600000
     
    3 mm Diameter
    830.3780Rockwell C42DIN 7346, ISO 1333710097161A12900000
    83 to 3.10.61,400Rockwell C42ISO 875220091611A15300000
     
    4 mm Diameter
    840.51,700Rockwell C42DIN 7346, ISO 133375097161A1440000
    84 to 4.20.82,500Rockwell C42ISO 875210091611A2030000
     
    5 mm Diameter
    850.52,300Rockwell C42DIN 7346, ISO 133375097161A1630000
     
    Corrosion-Resistant 18-8 Stainless Steel
     
    1 mm Diameter
    810.2Not RatedNot RatedISO 875210091610A08400000
     
    1.5 mm Diameter
    81.5 to 1.60.3Not RatedNot RatedISO 87522591610A1120000
     
    2 mm Diameter
    82 to 2.10.4Not RatedNot RatedDIN 1481, ISO 87522591610A2040000
     
    3 mm Diameter
    83 to 3.10.6Not RatedNot RatedDIN 1481, ISO 87522591610A4040000
     
    4 mm Diameter
    84 to 4.20.8Not RatedNot RatedISO 87521091610A5030000
     

    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.
    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.,
    mm
    Dia. Tolerance,
    mm
    Double Shear Breaking
    Strength
    Min.
    Hardness
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Machinable 12L14 Carbon Steel
     
    2 mm Diameter
    8-0.014 to 0Not RatedRockwell B68ISO 2338-h810097049A20300000
     
    3 mm Diameter
    8-0.014 to 0Not RatedRockwell B68ISO 2338-h810097049A20600000
     
    4 mm Diameter
    8-0.018 to 0Not RatedRockwell B68ISO 2338-h810097049A20900000
     
    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.,
    mm
    Dia. Tolerance,
    mm
    Double Shear Breaking
    Strength
    Min.
    Hardness
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
     
    1.5 mm Diameter
    8-0.014 to 0Not RatedRockwell B95ISO 2338-h85097049A30700000
     
    2 mm Diameter
    8-0.014 to 0Not RatedRockwell B95ISO 2338-h810097049A10300000
     
    2.5 mm Diameter
    8-0.014 to 0Not RatedRockwell B95ISO 2338-h85097049A31300000
     
    3 mm Diameter
    8-0.014 to 0Not RatedRockwell B95ISO 2338-h85097049A10600000
     
    4 mm Diameter
    8-0.018 to 0Not RatedRockwell B95ISO 2338-h85097049A10900000
     
    5 mm Diameter
    8-0.018 to 0Not RatedRockwell B95ISO 2338-h82597049A3220000
     

    Coiled Spring Pins

    Image of Product. Front orientation. Spring Pins. Coiled Spring Pins.
    Image of Product. End View. Side1 orientation. Spring Pins. Coiled Spring Pins.

    End View

    The best spring pins for joining parts exposed to vibration and shock. They're often used in power transmission, automation, and other assemblies with constant motion and sudden starts and stops. Because of their spiral shape, they flex to conform to holes that aren’t perfectly round.
    Spring Steel—These pins won't deform from stress and vibration. Although they're stronger than stainless steel, they're best for dry environments since moisture will cause them to rust.
    Corrosion-Resistant 18-8 Stainless Steel—The choice for wet and outdoor environments, these pins resist rusting. They are strong enough to join most components but won't withstand extreme stress and vibration as well as steel.
    Lg.,
    mm
    For Hole
    Dia., mm
    Double Shear Breaking
    Strength, lbf
    Min.
    Hardness
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Spring Steel
     
    1.5 mm Diameter
    81.500 to 1.600320Rockwell C43ASME B18.8.3M, DIN 7343, ISO 87505091612A30200000
     
    2 mm Diameter
    82.000 to 2.100550Rockwell C41DIN 7343, ISO 87505091612A21100000
     
    2.5 mm Diameter
    82.500 to 2.600850Rockwell C43DIN 7343, ISO 87505091612A2530000
     
    3 mm Diameter
    83.000 to 3.1001,200Rockwell C43ISO 87505091612A2210000
     
    Corrosion-Resistant 18-8 Stainless Steel
     
    1.5 mm Diameter
    81.500 to 1.600200Not RatedASME B18.8.3M, DIN 7343, ISO 87502591612A3310000
     
    2 mm Diameter
    82.000 to 2.100400Not RatedDIN 7343, ISO 87505091612A11100000
     
    2.5 mm Diameter
    82.500 to 2.600650Not RatedDIN 7343, ISO 87502591612A12500000
     
    3 mm Diameter
    83.000 to 3.100900Not RatedDIN 7343, ISO 87502591612A14100000
     

    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. Partially Grooved, Plain Head, Standard Tolerance, Half Grooved.
    Image of Product. Front orientation. Dowel Pins. Partially Grooved, Plain Head, Standard Tolerance, Half Grooved, Tapered Groove.

    Tapered Groove

    Image of Product. Front orientation. Dowel Pins. Partially Grooved, Plain Head, 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.
    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,
    mm
    Max., mm
    Lg.,
    mm
    Dia.
    Dia.
    Tolerance
    Dia.
    Dia.
    Tolerance
    Groove Type
    Double Shear Breaking
    Strength, lbf
    Min.
    Hardness
    Groove
    Lg., mm
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Carbon Steel
     
    2 mm Diameter
    82-0.025 to 02.10 to 0.05Reverse Tapered600Rockwell B684ISO 87411098400A71300000
     
    3 mm Diameter
    83-0.025 to 03.2-0.05 to 0.05Tapered1,400Rockwell B684ISO 87451098400A7270000
     

    Cotter Pins

    Lock the ends of clevis pins and shafts to keep components in place. Slide these cotter pins into a hole and then bend the prongs outward with pliers to secure. Also known as split pins, one prong is slightly longer than the other for easy opening once inserted. Repeated bending will weaken the pin, so they should not be reused.
    Steel
    Image of Product. Front orientation. Contains Annotated. Cotter Pins. Cotter Pins.
    Zinc-Plated Spring 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.
    Lg.,
    mm
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Spring Steel
     
    1 mm Diameter
    8DIN 94, ISO 123420098350A13000000
     
    1.6 mm Diameter
    8DIN 94, ISO 123420098350A60500000
     
    Corrosion-Resistant Stainless Steel
    Image of Product. Front orientation. Contains Annotated. Cotter Pins. Cotter Pins.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these pins resist rusting. They are strong enough to join most components but won't withstand extreme stress and vibration as well as steel.
    Lg.,
    mm
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
     
    1.6 mm Diameter
    8DIN 94, ISO 123410098350A208000000
     

    Press-Fit Studs

    Image of Product. Front orientation. Studs. Press-Fit Studs.
    Press these studs into a drilled or punched hole with an arbor press or similar pressure tool. Also known as self-clinching studs, ribs under the head hold the stud firmly in place. Length listed is overall length.
    Zinc-Plated Steel—The most common choice for areas with occasional exposure to moisture.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these studs resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.
    Lg.,
    mm
    PEM® Part
    No.
    Thread
    Lg., mm
    For Min. Material
    Thk., mm
    For Min. Lg. Between Hole
    Ctr. and Sheet Edge, mm
    For Hole
    Dia., mm
    Hole Size Tolerance,
    mm
    Drill Bit
    Size, mm
    Base Dia.,
    mm
    Tensile
    Strength
    Hardness
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Steel
     
    M3 × 0.5 mm
    8FH-M3-861.0005.530.000 to 0.083.0
    		5Not RatedNot Rated5093580A57700000
     
    M3.5 × 0.6 mm
    8FH-M3.5-861.0006.53.50.000 to 0.083.5
    		5.7Not RatedNot Rated5093580A5860000
     
    M4 × 0.7 mm
    8FH-M4-861.000740.000 to 0.0822 Ga.
    		6.3Not RatedNot Rated5093580A5910000
     
    M5 × 0.8 mm
    8FH-M5-851.000750.000 to 0.085.0
    		6.9Not RatedNot Rated2593580A6010000
     
    18-8 Stainless Steel
     
    M2.5 × 0.45 mm
    8FHS-M2.5-861.00052.50.000 to 0.082.5
    		3.7Not RatedNot Rated2593580A6920000
     
    M3 × 0.5 mm
    8FHS-M3-861.0005.530.000 to 0.083.0
    		4.2Not RatedNot Rated2593580A6960000
     
    M4 × 0.7 mm
    8FHS-M4-861.000740.000 to 0.084.0
    		5.5Not RatedNot Rated2593580A7040000
     
    M5 × 0.8 mm
    8FHS-M5-851.000750.000 to 0.085.0
    		6.1Not RatedNot Rated1093580A7130000
     

    Press-Fit Locating and Support Buttons

    Image of Product. Front orientation. Contains Annotated. Locating and Support Buttons. Press-Fit Locating and Support Buttons.
    Support and position workpieces and fixtures from the bottom or side. These buttons press into a drilled hole for permanent installation. Also known as rest buttons.
    Stud,
    mm
    Tolerance,
    mm
    Dia.,
    mm
    Lg.,
    mm
    Dia.
    Lg.
    Lg.
    Stud
    Dia.
    Specs.
    Met
    Each
    Steel
    168812-0.036 to 00 to 0.04DIN 63213097N13000000
     

    Rounded Machine Keys

    Image of Product. Front orientation. Machine Keys. Rounded Machine Keys.
    When installed, these keys fill oval keyways completely, reducing stress on the key and shaft. Using them in a closed keyway keeps them from sliding along the shaft axis. The rounded ends make it easy to slide gears, hubs, and other components into place. These are also known as feather keys. Machine keys are often the same material as the shaft and other components with which they are used. To use a key as a sacrificial part, choose a softer key that will shear off when parts are exposed to excessive force, preventing damage to expensive equipment.
    1008-1045 Carbon Steel and 1045 Carbon Steel—Steel keys are strong and easy to machine. Since steel is the most common material, these keys work in many applications. Steel keys rust when exposed to moisture, so they should only be used in dry environments.
    316 Stainless Steel—316 stainless steel keys have excellent corrosion resistance, but aren't as strong as steel keys. They may be mildly magnetic.
    Undersized Tolerance—Slightly smaller than the size listed in the table, undersized keys are the choice when you need a slightly looser fit or when you have an inconsistent keyway. Use them when parts need to be taken apart frequently, such as for maintenance or prototyping. Undersized metric keys meet DIN 6885 dimensional standards.
    Tolerance,
    mm
    Lg.,
    mm
    Tolerance
    Rating
    Ht.
    Wd.
    Min.
    Hardness
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    1008-1045 Carbon Steel
     
    3 mm × 3 mm
    8Undersized-0.025 to 0.000-0.025 to 0.000Not RatedDIN 6885596717A10300000
     
    1045 Carbon Steel
     
    4 mm × 4 mm
    8Undersized-0.030 to 0.000-0.030 to 0.000Rockwell B87DIN 68851096717A1000000
     
    316 Stainless Steel
     
    3 mm × 3 mm
    8Undersized-0.025 to 0.000-0.025 to 0.000Not RatedDIN 688552977N420000
     
    4 mm × 4 mm
    8Undersized-0.030 to 0.000-0.030 to 0.000Not RatedDIN 688552977N140000
     
    5 mm × 5 mm
    8Undersized-0.030 to 0.000-0.030 to 0.000Not RatedDIN 688552977N6900000
     

    Ball-Lock Quick-Change Fixture Clamps

    Image of System. Front orientation. Exploded view. Contains Annotated. Fixture Clamps. Ball-Lock Quick-Change Fixture Clamps.
    Build these components into fixture plates, machine subplates, and tombstones for quick changes. The system clamps and locates at the same time for accurate positioning with repeatability of ±0.0005". Components are compatible with Jergens Ball-Lock, Carr-Lane Carr Lock, and Kurt PinLock quick change systems.
    For accurate positioning, at least two sets of clamps, liners, and receivers are required. Install the receivers in the base plate and the liners in the fixture plate. Then line up the two plates, insert the clamps, and tighten their screws to secure the fixture in place. If more holding capacity is needed, use additional clamps and receivers but omit liners to prevent the clamp from getting stuck in the fixture plate.
    Receiver Plugs
    Image of Product. Front orientation. Fixture Clamps. Ball-Lock Quick-Change Fixture Clamps, Receiver Plugs.
    Push receiver plugs into unused receivers to prevent chips and coolant from accumulating during machining. When installed, plugs sit flush with the surface of the fixture plate. To remove, thread a screw into the tapped hole in the center and pull up.
    For Clamp
    Shank Dia., mm
    Lg.,
    mm
    Thread
    Size
    Material
    Each
    138M4 × 0.7 mmAluminum1349N7200000
    168M4 × 0.7 mmAluminum1349N7300000
    208M4 × 0.7 mmAluminum1349N7400000

    Machine Keys

    Image of Product. Front orientation. Machine Keys. Machine Keys.
    Straight keys, with a square or rectangular cross section, are the most common type of key. Install them in keyways to transmit torque from shafts to gears and other components. Machine keys are often the same material as the shaft and other components with which they are used. To use a key as a sacrificial part, choose a softer key that will shear off when parts are exposed to excessive force, preventing damage to expensive equipment.
    1008-1045 Carbon Steel—Steel keys are strong and easy to machine. Since steel is the most common material, these keys work in many applications. Steel keys rust when exposed to moisture, so they should only be used in dry environments.
    Undersized Tolerance—Slightly smaller than the size listed in the table, undersized keys are the choice when you need a slightly looser fit or when you have an inconsistent keyway. Use them when parts need to be taken apart frequently, such as for maintenance or prototyping.
    Tolerance,
    mm
    Lg.,
    mm
    Tolerance
    Rating
    Ht.
    Wd.
    Min.
    Hardness
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    1008-1045 Carbon Steel
     
    3 mm × 3 mm
    8Undersized-0.025 to 0.000-0.025 to 0.000Not RatedDIN 6885598870A70300000
     
    4 mm × 4 mm
    8Undersized-0.030 to 0.000-0.030 to 0.000Not RatedDIN 6885598870A7120000
     
    316 Stainless Steel
     
    3 mm × 3 mm
    8Undersized-0.025 to 0.000-0.025 to 0.000Not RatedDIN 6885598870A1030000
     
    5 mm × 5 mm
    8Undersized-0.030 to 0.000-0.030 to 0.000Not RatedDIN 6885598870A2130000
     

    Weld Studs

    Image of Product. Front orientation. Studs. Weld Studs.
    Image of Specification. Back orientation. ZoomedIn view. Contains Border. Above-Head Projection.

    Above-Head

    Projection

    Weld in place for greater rigidity and strength than other studs. These studs have a wide base that distributes the load and projections that concentrate the weld. Length listed is overall length.
    Steel—Without a finish, these studs require minimal prep work before welding. After installation, you can paint them for a finished look.
    Above-Head Projection—Weld the head directly to the surface of the material for a smooth appearance.
    Base,
    mm
    Lg.,
    mm
    Projection
    Location
    Dia.
    Thk.
    Tensile
    Strength
    Hardness
    Pkg.
    Qty.
    Pkg.
    Steel
     
    M3.5
    8Above Head71.1Not RatedNot Rated1093865A71000000
     
    M4
    8Above Head81.2Not RatedNot Rated1093865A7600000
     
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