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    77 Products

    Fully Grooved Dowel Pins with Rounded Head

    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. Standard Tolerance, Fully Grooved, Rounded Head.
    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 B18.8.298108A11000000
    1/4"0.104"-0.002" to 0"0.113"-0.002" to 0.002"ParallelNot RatedNot Rated0.202"0.08"ASME B18.8.298108A1400000
    3/8"0.086"-0.002" to 0"0.096"-0.002" to 0.002"ParallelNot RatedNot Rated0.154"0.065"ASME B18.8.298108A1200000
    3/8"0.104"-0.002" to 0"0.113"-0.002" to 0.002"ParallelNot RatedNot Rated0.202"0.08"ASME B18.8.298108A1500000
    3/8"0.12"-0.002" to 0"0.13"-0.002" to 0.002"ParallelNot RatedNot Rated0.25"0.097"ASME B18.8.298108A1700000
    3/8"0.144"-0.002" to 0"0.153"-0.002" to 0.002"ParallelNot RatedNot Rated0.298"0.113"ASME B18.8.298108A2100000
    1/2"0.086"-0.002" to 0"0.096"-0.002" to 0.002"ParallelNot RatedNot Rated0.154"0.065"ASME B18.8.298108A1300000
    1/2"0.104"-0.002" to 0"0.113"-0.002" to 0.002"ParallelNot RatedNot Rated0.202"0.08"ASME B18.8.298108A1600000
    1/2"0.12"-0.002" to 0"0.13"-0.002" to 0.002"ParallelNot RatedNot Rated0.25"0.097"ASME B18.8.298108A1800000
    1/2"0.144"-0.002" to 0"0.155"-0.002" to 0.002"ParallelNot RatedNot Rated0.298"0.113"ASME B18.8.298108A2200000
    1/2"0.161"-0.002" to 0"0.171"-0.002" to 0.002"ParallelNot RatedNot Rated0.347"0.13"ASME B18.8.298108A2400000
    1/2"0.196"-0.002" to 0"0.206"-0.002" to 0.002"ParallelNot RatedNot Rated0.395"0.146"ASME B18.8.298108A2700000
    5/8"0.12"-0.002" to 0"0.13"-0.002" to 0.002"ParallelNot RatedNot Rated0.25"0.097"ASME B18.8.298108A1900000
    5/8"0.144"-0.002" to 0"0.155"-0.002" to 0.002"ParallelNot RatedNot Rated0.298"0.113"ASME B18.8.298108A2300000
    3/4"0.161"-0.002" to 0"0.171"-0.002" to 0.002"ParallelNot RatedNot Rated0.347"0.13"ASME B18.8.298108A2500000
    3/4"0.196"-0.002" to 0"0.201"-0.002" to 0.002"ParallelNot RatedNot Rated0.395"0.146"ASME B18.8.298108A2800000
    1"0.161"-0.002" to 0"0.171"-0.002" to 0.002"ParallelNot RatedNot Rated0.347"0.13"ASME B18.8.298108A2600000
    1"0.196"-0.002" to 0"0.201"-0.002" to 0.002"ParallelNot RatedNot Rated0.395"0.146"ASME B18.8.298108A2900000
     

    Ball-Grip Quick-Release Pins

    The smooth, round head is comfortable to grip and won't catch on other parts. These pins have a retaining ball that holds them in place until you pull to remove.
    Steel
    Image of Product. Front orientation. Contains Annotated. Quick-Release Pins. Ball-Grip Quick-Release 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.
    Usable
    Lg.
    Dia. at Extended
    Ball Ht.
    Single Shear Breaking
    Strength, lbf
    Min.
    Hardness
    Handle
    Color
    Handle
    Material
    Ball Material
    Each
    Zinc-Plated Carbon Steel
     
    1/4" Diameter
    2"0.286"1,900Rockwell C26BlackPlasticStainless Steel
    92490A56700000
    3"0.286"1,900Rockwell C26BlackPlasticStainless Steel
    92490A5710000
    4"0.286"1,900Rockwell C26BlackPlasticStainless Steel
    92490A5750000
     
    3/8" Diameter
    2 1/8"0.426"4,300Rockwell C26BlackPlasticStainless Steel
    92490A5820000
    3 1/8"0.426"4,300Rockwell C26BlackPlasticStainless Steel
    92490A5850000
     
    1/2" Diameter
    3 1/4"0.57"7,700Rockwell C26BlackPlasticStainless Steel
    92490A58900000
     

    Barbed Dowel Pins with Rounded Head

    Often used in place of rivets, these pins create a finished look while securing plastics and soft metals such as aluminum. The sharp points bite into parts for a permanent hold. Also known as Barb-Lok™ pins.
    Steel
    Image of Product. Front orientation. Dowel Pins. Rounded Head, Barbed Shaft, Standard Tolerance.
    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
    Lg.
    Double Shear Breaking
    Strength
    Min.
    Hardness
    Dia.
    Ht.
    Each
    Zinc-Plated Carbon Steel
     
    7/64" Diameter
    5/16"Not RatedNot Rated0.211"0.087"98388A31100000
    3/8"Not RatedNot Rated0.211"0.087"98388A3120000
    1/2"Not RatedNot Rated0.211"0.087"98388A3130000
     
    1/8" Diameter
    3/8"Not RatedNot Rated0.26"0.103"98388A3140000
    1/2"Not RatedNot Rated0.26"0.103"98388A3150000
    3/4"Not RatedNot Rated0.26"0.103"98388A3160000
     
    9/64" Diameter
    3/8"Not RatedNot Rated0.309"0.119"98388A3170000
    1/2"Not RatedNot Rated0.309"0.119"98388A3180000
    3/4"Not RatedNot Rated0.309"0.119"98388A3190000
     
    11/64" Diameter
    1/2"Not RatedNot Rated0.359"0.136"98388A3210000
    3/4"Not RatedNot Rated0.359"0.136"98388A3220000
    1"Not RatedNot Rated0.359"0.136"98388A3230000
     

    Ball-Grip Weld-On Retractable Spring Plungers

    Image of Product. Front orientation. Contains Annotated. Spring Plungers. Ball-Grip Weld-On Retractable Spring Plungers.
    The smooth ball handle is easy to grip and won't catch on other parts. Pull it back to manually retract the nose and make adjustments whenever you need. Since they weld in place, these spring plungers have the strongest hold for aligning, securing, and positioning components on heavy machinery. They can do everything from locking attachments on forklifts and holding dies in place on industrial presses. To change your setup, unthread the spring plunger from the old welded-on barrel and thread it into a new one.
    Zinc-Plated Steel Nose—The strongest, most wear-resistant noses, these won't deform from stress and vibration. They withstand occasional exposure to moisture.
    18-8 Stainless Steel Nose—The choice for wet and outdoor environments, 18-8 stainless steel resists rusting. It's strong enough for most jobs, but won't withstand stress and vibration as well as steel.
    Twist-to-Lock—Free up both hands to adjust your workpiece or switch out parts without the plunger springing back and getting in the way. Pull back the handle and twist to lock the nose in its retracted position.
    Spring Plungers
    Replacement
    Barrel Sleeves
    Nose
    Body
    Handle
    Nonlocking
    Twist-to-Lock
    Extended
    Lg.
    Dia.
    Material
    Wd.
    Lg.
    Material
    Lg.
    Each
    Each
    Each
    Zinc-Plated Steel Nose
    0.563"0.25"Steel1"1.5"Plastic1 3/8"90222A80900000090222A22200000090222A80400000
    0.563"0.375"Steel1"1.5"Plastic1 3/8"90222A8100000090222A6250000090222A8040000
    0.563"0.5"Steel1"1.5"Plastic1 3/8"90222A8110000090222A6430000090222A8040000
    0.563"0.5"Steel1"2.25"Plastic1 3/8"90222A8130000090222A6790000090222A8050000
    0.563"0.5"Steel1"4.5"Plastic1 3/8"90222A81500000———090222A80600000
    0.563"0.625"Steel1"2.25"Plastic1 3/8"90222A8140000090222A4470000090222A8050000
    0.625"0.375"Steel1"1.5"Plastic1 3/8"90222A41500000———090222A8040000
    0.625"0.375"Steel1"3"Plastic1 3/8"90222A42300000———0———0
    0.625"0.5"Steel1"1.5"Plastic1 3/8"90222A41900000———090222A8040000
    0.688"0.5"Steel1"1.5"Plastic1 3/8"90222A8120000090222A3430000090222A8040000
     
    18-8 Stainless Steel Nose
    0.563"0.375"18-8 Stainless Steel
    1"1.5"Plastic1 3/8"91712A2220000091712A4430000091712A58200000
    0.563"0.5"18-8 Stainless Steel
    1"1.5"Plastic1 3/8"91712A2400000091712A4610000091712A58200000
    0.563"0.5"18-8 Stainless Steel
    1"2.25"Plastic1 3/8"91712A2760000091712A4970000091712A58300000
    0.563"0.625"18-8 Stainless Steel
    1"2.25"Plastic1 3/8"91712A5840000091712A3210000091712A58300000
     

    Spring Test Probes

    Image of Product. Front orientation. Exploded view. Contains Annotated. Spring Test Probes.
    Image of Product. Front orientation. Spring Test Probes. Round Tip.

    Round Tip

    Image of Attribute. Front orientation. Contains Annotated.
    Create an automated system to test continuity in circuit boards. Combine these spring-loaded test probes with Spring Test Probe Sockets that are permanently attached to testing fixtures. Select a socket that has the same minimum spacing between probe centers and is for the probe's barrel length. Test probes and sockets are sold separately.
    Probes with flat and rounded tips are nonmarring, while probes with pointier tips may leave light marks on surfaces. Sharper probes, however, will be more effective at penetrating corroded or finished surfaces.
    When installing test probes and sockets, adhere to the "minimum spacing between probe centers" to maximize testing points while preventing probes from interfering with each other. Spring test probes will produce optimal results when your system is set up to achieve the working stroke length. Initial spring force is the force required to start compressing the probe; maximum spring force is the force applied at the working stroke length.
    Round Tip—Round probes test flat surfaces.
    Spring
    Force, ozf
    Stroke
    Lg.
    Barrel
    Min. Spacing Between
    Probe Centers
    Current,
    amp
    Initial
    Max.
    Overall
    Lg.
    Compressed
    Lg.
    Working
    Max.
    Lg.
    Dia.
    Head
    Dia.
    Finish
    Pkg.
    Qty.
    Pkg.
    Round Tip
    0.039"4.32.25.41.435"1.27"0.167"1/4"1.435"0.024"0.016"Gold Plated55949T159000000
    0.05"32.471.7"1.45"0.167"1/4"1.43"0.031"0.021"Gold Plated55949T13600000
    0.05"51.771.865"1.548"0.317"0.35"1.43"0.031"0.021"Gold Plated55949T15300000
    0.05"52.45.61.36"1.12"0.167"1/4"1.09"0.031"0.021"Gold Plated55949T12500000
    0.05"5.91.24.81.527"1.21"0.317"0.4"1.09"0.031"0.021"Gold Plated55949T1500000
    0.075"101.771.45"1.13"0.317"0.35"1"0.04"0.026"Gold Plated55949T14500000
    0.075"112.771.3"1.05"0.167"1/4"1"0.04"0.026"Gold Plated55949T10900000
    0.1"14271.46"1.14"0.317"0.35"1"0.054"0.036"Gold Plated55949T11700000
    0.1"172.66.51.31"1.06"0.167"1/4"1"0.054"0.036"Gold Plated55949T9900000
    0.125"52.971.3"1.05"0.17"1/4"0.97"0.08"0.059"Gold Plated55949T13300000
    0.125"272.971.3"1.05"0.17"1/4"0.97"0.08"0.059"Gold Plated55949T14300000
    0.187"324101.33"1.07"0.17"1/4"0.97"0.09"0.068"Gold Plated55949T16400000
     
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