McMaster-Carr logo
    Filter by
    Spring Plunger Nose Type
    System of Measurement
    Body Texture
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    DFARS Specialty Metals
    Handle Material
    Fastener Head Type
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Comments
    E-mail address (if you would like a response)
    215 Products

    Press-Fit Ball-Nose Spring Plungers

    Image of Product. Front orientation. Spring Plungers. Press-Fit Ball-Nose Spring Plungers, Flanged Profile, Smooth Body.

    Flanged Profile

    Smooth Body

    Image of Product. Front orientation. Spring Plungers. Press-Fit Ball-Nose Spring Plungers, Flush Profile, Knurled Body.

    Flush Profile

    Knurled Body

    Image of Product. Front orientation. Spring Plungers. Press-Fit Ball-Nose Spring Plungers, Flush Profile, Smooth Body.

    Flush Profile

    Smooth Body

    Image of Attribute. Front orientation. Contains Annotated. Press-Fit Ball-Nose Spring Plungers, Flanged Profile.

    Flanged Profile

    Image of Attribute. Front orientation. Contains Annotated. Press-Fit Ball-Nose Spring Plungers, Flush Profile.

    Flush Profile

    When you can't tap threads in your mounting surface, push these spring plungers into unthreaded holes. They work well in wood, plastic, and other soft materials that might crack if you try to cut threads. The spring-loaded ball compresses when a part presses against it, and then pops out into a notch or groove to hold the part in place.
    For a snug fit, use an arbor press to install these spring plungers in a slightly smaller hole than the body diameter.
    Flanged Profile—The flanged body stops the spring plunger from sliding back through the hole when the nose compresses under a strong force. It also acts as a gripping tab so you can pull the plunger out to make adjustments.
    Flush Profile—These plungers mount flush against the surface to prevent snagging.
    440C Stainless Steel Nose—The strongest, most wear-resistant stainless steel noses, these grind against hard metal surfaces without denting or scratching. However, they are not as corrosion resistant as 316 stainless steel.
    420 Stainless Steel Nose—Highly wear resistant, the nose grinds against hard metal surfaces without denting or scratching. However, 420 stainless steel is not quite as corrosion resistant as 316 stainless steel.
    Acetal Nose—The best plastic for damp and wet environments, acetal won't swell or lose strength if exposed to moisture. These noses are extra soft to avoid scratching delicate surfaces. They are best for use on soft materials, such as aluminum.
    Nylon Nose—Extra soft to avoid scratching delicate surfaces. Nylon is best for use on soft materials, such as aluminum. It will swell and weaken when exposed to moisture, however, so it should only be used in dry environments.
    Knurled Body—A knurled body grips more securely than a smooth body, so the spring plungers won't slip or rotate due to vibration.
    Smooth Body—These spring plungers slide effortlessly into unthreaded holes, but don't grip quite as firmly as those with a knurled body.
    Nose
    Nose
    Force, lbf
    Body
    Flange
    Extended
    Lg.
    Dia.
    Extended
    Compressed
    Material
    Texture
    Dia.
    Lg.
    Thick.
    Dia.
    Each
    Flanged Profile
     
    440C Stainless Steel Nose
    0.035"0.093"2518-8 Stainless Steel
    Smooth0.125"0.25"1/32"3/16"84895A3100000
    0.035"0.093"25SteelSmooth0.125"0.25"1/32"3/16"84835A210000
    0.035"0.094"0.41.318-8 Stainless Steel
    Smooth0.125"0.25"1/32"3/16"84895A610000
    0.035"0.094"0.41.3SteelSmooth0.125"0.25"1/32"3/16"84835A410000
    0.035"0.094"0.82.518-8 Stainless Steel
    Smooth0.125"0.25"1/32"3/16"84895A560000
    0.035"0.094"0.82.5SteelSmooth0.125"0.25"1/32"3/16"84835A330000
    0.04"0.12"0.61.418-8 Stainless Steel
    Smooth0.157"0.16"3/64"3/16"84895A710000
    0.046"0.125"1.53.518-8 Stainless Steel
    Smooth0.157"0.33"1/32"3/16"84895A180000
    0.046"0.125"1.53.5SteelSmooth0.157"0.33"1/32"3/16"84835A480000
    0.046"0.125"37.518-8 Stainless Steel
    Smooth0.157"0.33"1/32"3/16"84895A170000
    0.046"0.125"37.5SteelSmooth0.157"0.33"1/32"3/16"84835A470000
    0.058"0.156"12.518-8 Stainless Steel
    Smooth0.188"0.39"3/64"1/4"84895A620000
    0.058"0.156"12.5SteelSmooth0.188"0.39"3/64"1/4"84835A420000
    0.058"0.156"2518-8 Stainless Steel
    Smooth0.188"0.39"3/64"1/4"84895A210000
    0.058"0.156"25SteelSmooth0.188"0.39"3/64"1/4"84835A110000
    0.058"0.156"41018-8 Stainless Steel
    Smooth0.188"0.41"1/32"1/4"84895A320000
    0.058"0.156"410SteelSmooth0.188"0.41"1/32"1/4"84835A220000
    0.06"0.16"0.71.518-8 Stainless Steel
    Smooth0.2"0.2"3/64"1/4"84895A720000
    0.07"0.187"1.53.518-8 Stainless Steel
    Smooth0.25"0.47"3/64"5/16"84895A630000
    0.07"0.187"1.53.5SteelSmooth0.25"0.47"3/64"5/16"84835A430000
    0.07"0.187"3718-8 Stainless Steel
    Smooth0.25"0.47"3/64"5/16"84895A220000
    0.07"0.187"37SteelSmooth0.25"0.47"3/64"5/16"84835A120000
    0.07"0.187"61318-8 Stainless Steel
    Smooth0.25"0.48"3/64"5/16"84895A330000
    0.07"0.187"613SteelSmooth0.25"0.48"3/64"5/16"84835A230000
    0.07"0.2"1.22.618-8 Stainless Steel
    Smooth0.24"0.24"3/64"1/4"84895A730000
    0.09"0.25"2518-8 Stainless Steel
    Smooth0.312"0.64"3/64"3/8"84895A640000
    0.09"0.25"25SteelSmooth0.312"0.64"3/64"3/8"84835A440000
    0.09"0.25"41018-8 Stainless Steel
    Smooth0.312"0.64"3/64"3/8"84895A580000
    0.09"0.25"410SteelSmooth0.312"0.64"3/64"3/8"84835A360000
    0.09"0.25"81618-8 Stainless Steel
    Smooth0.312"0.64"3/64"3/8"84895A340000
    0.09"0.25"816SteelSmooth0.312"0.64"3/64"3/8"84835A240000
    0.09"0.26"1.62.818-8 Stainless Steel
    Smooth0.31"0.31"3/64"5/16"84895A740000
    0.11"0.312"2.5718-8 Stainless Steel
    Smooth0.375"0.79"5/64"1/2"84895A650000
    0.11"0.312"2.57SteelSmooth0.375"0.79"5/64"1/2"84835A450000
    0.11"0.312"51418-8 Stainless Steel
    Smooth0.375"0.79"5/64"1/2"84895A230000
    0.11"0.312"514SteelSmooth0.375"0.79"5/64"1/2"84835A130000
    0.11"0.312"101818-8 Stainless Steel
    Smooth0.375"0.79"5/64"1/2"84895A350000
    0.11"0.312"1018SteelSmooth0.375"0.79"5/64"1/2"84835A250000
    0.13"0.33"1.94.218-8 Stainless Steel
    Smooth0.394"0.45"1/16"7/16"84895A150000
    0.16"0.39"2.7618-8 Stainless Steel
    Smooth0.472"0.54"3/32"1/2"84895A160000
    0.161"0.437"4918-8 Stainless Steel
    Smooth0.5"1.1"7/64"11/16"84895A660000
    0.161"0.437"49SteelSmooth0.5"1.1"7/64"11/16"84835A460000
    0.161"0.437"81818-8 Stainless Steel
    Smooth0.5"1.1"7/64"11/16"84895A240000
    0.161"0.437"818SteelSmooth0.5"1.1"7/64"11/16"84835A140000
    0.161"0.437"122318-8 Stainless Steel
    Smooth0.5"1.13"3/32"11/16"84895A3600000
    0.161"0.437"1223SteelSmooth0.5"1.13"3/32"11/16"84835A260000
     
    420 Stainless Steel Nose
    0.55 mm2 mm0.40.8Acetal
    Smooth3 mm3.4 mm0.6 mm3.6 mm4232N110000
    0.6 mm2.4 mm0.40.8BrassSmooth3 mm3.4 mm0.6 mm3.6 mm5848N110000
    0.7 mm2.4 mm0.40.818-8 Stainless Steel
    Smooth3 mm3.4 mm0.6 mm3.5 mm6052N110000
    0.8 mm3 mm0.71.3Acetal
    Smooth4 mm4 mm1 mm4.6 mm4232N120000
    0.8 mm3 mm0.71.3BrassSmooth4 mm4 mm1 mm4.5 mm5848N120000
    0.9 mm3 mm2.94.318-8 Stainless Steel
    Smooth4 mm9.8 mm0.9 mm4.6 mm6052N320000
    1 mm3 mm0.10.218-8 Stainless Steel
    Smooth4 mm4.1 mm0.9 mm4.6 mm6052N180000
    1 mm3 mm0.61.318-8 Stainless Steel
    Smooth4 mm4.1 mm0.9 mm4.6 mm6052N120000
    1 mm3 mm1.12.318-8 Stainless Steel
    Smooth4 mm4.1 mm0.9 mm4.6 mm6052N250000
    1 mm4 mm0.91.5BrassSmooth5 mm5 mm1 mm5.5 mm5848N130000
    1 mm4 mm1.32.1Acetal
    Smooth5 mm5 mm1 mm5.6 mm4232N130000
    1.3 mm4 mm4.36.618-8 Stainless Steel
    Smooth5 mm11.1 mm0.9 mm5.6 mm6052N330000
    1.4 mm4 mm0.11.118-8 Stainless Steel
    Smooth5 mm5.1 mm0.9 mm5.6 mm6052N190000
    1.4 mm4 mm0.71.518-8 Stainless Steel
    Smooth5 mm5.1 mm0.9 mm5.6 mm6052N130000
    1.4 mm4 mm1.12.718-8 Stainless Steel
    Smooth5 mm5.1 mm0.9 mm5.6 mm6052N260000
    1.6 mm5 mm1.32.6BrassSmooth6 mm6 mm1 mm6.5 mm5848N140000
    1.6 mm5 mm1.42.8Acetal
    Smooth6 mm6 mm1 mm6.5 mm4232N140000
    1.7 mm5 mm6.310.718-8 Stainless Steel
    Smooth6 mm14 mm1 mm6.5 mm6052N340000
    1.8 mm5 mm0.51.518-8 Stainless Steel
    Smooth6 mm6 mm1 mm6.5 mm6052N210000
    1.8 mm5 mm1.22.618-8 Stainless Steel
    Smooth6 mm6 mm1 mm6.5 mm6052N140000
    1.8 mm5 mm1.64.318-8 Stainless Steel
    Smooth6 mm6 mm1 mm6.5 mm6052N270000
    1.9 mm6.5 mm1.82.8BrassSmooth8 mm8 mm1 mm8.5 mm5848N150000
    1.9 mm6.5 mm2.24.6Acetal
    Smooth8 mm8 mm1 mm8.5 mm4232N150000
    2.3 mm6.5 mm915.118-8 Stainless Steel
    Smooth8 mm16.9 mm1.1 mm8.5 mm6052N350000
    2.4 mm6.5 mm0.9218-8 Stainless Steel
    Smooth8 mm7.9 mm1.1 mm8.5 mm6052N220000
    2.4 mm6.5 mm1.62.818-8 Stainless Steel
    Smooth8 mm7.9 mm1.1 mm8.5 mm6052N150000
    2.4 mm6.5 mm2.55.618-8 Stainless Steel
    Smooth8 mm7.9 mm1.1 mm8.5 mm6052N280000
    2.4 mm8 mm2.75Acetal
    Smooth10 mm12 mm1.5 mm11 mm4232N160000
    3.1 mm8.5 mm14.823.618-8 Stainless Steel
    Smooth10 mm24.5 mm1.5 mm11 mm6052N360000
    3.3 mm8.5 mm0.92.218-8 Stainless Steel
    Smooth10 mm11.5 mm1.5 mm11 mm6052N230000
    3.3 mm8.5 mm1.94.218-8 Stainless Steel
    Smooth10 mm11.5 mm1.5 mm11 mm6052N160000
    3.3 mm8.5 mm3.88.318-8 Stainless Steel
    Smooth10 mm11.5 mm1.5 mm11 mm6052N290000
    3.3 mm10 mm3.15.6Acetal
    Smooth12 mm14.5 mm1.5 mm13 mm4232N170000
    4 mm10 mm1.43.318-8 Stainless Steel
    Smooth12 mm13.7 mm2.3 mm13 mm6052N240000
    4 mm10 mm2.7618-8 Stainless Steel
    Smooth12 mm13.7 mm2.3 mm13 mm6052N170000
    4 mm10 mm6.712.118-8 Stainless Steel
    Smooth12 mm13.7 mm2.3 mm13 mm6052N310000
     
    Acetal Nose
    0.035"0.093"2518-8 Stainless Steel
    Smooth0.125"0.25"1/32"3/16"8483A410000
    0.035"0.093"25SteelSmooth0.125"0.25"1/32"3/16"8483A70000
    0.046"0.125"0.8218-8 Stainless Steel
    Smooth0.157"0.33"1/32"3/16"8483A790000
    0.046"0.125"1.53.518-8 Stainless Steel
    Smooth0.157"0.33"1/32"3/16"8483A80000
    0.046"0.125"1.53.5SteelSmooth0.157"0.33"1/32"3/16"8483A780000
    0.046"0.125"37.518-8 Stainless Steel
    Smooth0.157"0.33"1/32"3/16"8483A770000
    0.046"0.125"37.5SteelSmooth0.157"0.33"1/32"3/16"8483A760000
    0.058"0.156"41018-8 Stainless Steel
    Smooth0.188"0.41"1/32"1/4"8483A420000
    0.058"0.156"410SteelSmooth0.188"0.41"1/32"1/4"8483A710000
    0.07"0.187"61318-8 Stainless Steel
    Smooth0.25"0.48"3/64"5/16"8483A430000
    0.07"0.187"613SteelSmooth0.25"0.48"3/64"5/16"8483A720000
    0.09"0.25"81618-8 Stainless Steel
    Smooth0.312"0.64"3/64"3/8"8483A440000
    0.09"0.25"816SteelSmooth0.312"0.64"3/64"3/8"8483A730000
    0.11"0.312"101818-8 Stainless Steel
    Smooth0.375"0.79"5/64"1/2"8483A450000
    0.11"0.312"1018SteelSmooth0.375"0.79"5/64"1/2"8483A740000
    0.161"0.437"122318-8 Stainless Steel
    Smooth0.5"1.13"3/32"11/16"8483A460000
    0.161"0.437"1223SteelSmooth0.5"1.13"3/32"11/16"8483A750000
    0.8 mm3 mm0.71.5Acetal
    Smooth4 mm4 mm1 mm4.6 mm4232N180000
    1 mm4 mm1.32.1Acetal
    Smooth5 mm5 mm1 mm5.6 mm4232N190000
    1.6 mm5 mm1.42.8Acetal
    Smooth6 mm6 mm1 mm6.5 mm4232N210000
    1.9 mm6.5 mm2.24.6Acetal
    Smooth8 mm8 mm1 mm8.5 mm4232N220000
    2.4 mm8 mm2.75Acetal
    Smooth10 mm12 mm1.5 mm11 mm4232N230000
    3.3 mm10 mm3.15.6Acetal
    Smooth12 mm14.5 mm1.5 mm13 mm4232N240000
     
    Nylon Nose
    0.035"0.094"0.41.318-8 Stainless Steel
    Smooth0.125"0.25"1/32"3/16"8483A240000
    0.035"0.094"0.41.3SteelSmooth0.125"0.25"1/32"3/16"8483A570000
    0.035"0.094"0.82.518-8 Stainless Steel
    Smooth0.125"0.25"1/32"3/16"8483A250000
    0.035"0.094"0.82.5SteelSmooth0.125"0.25"1/32"3/16"8483A510000
    0.058"0.156"12.518-8 Stainless Steel
    Smooth0.188"0.39"3/64"1/4"8483A260000
    0.058"0.156"12.5SteelSmooth0.188"0.39"3/64"1/4"8483A580000
    0.058"0.156"2518-8 Stainless Steel
    Smooth0.188"0.39"3/64"1/4"8483A270000
    0.058"0.156"25SteelSmooth0.188"0.39"3/64"1/4"8483A520000
    0.07"0.187"1.53.518-8 Stainless Steel
    Smooth0.25"0.47"3/64"5/16"8483A280000
    0.07"0.187"1.53.5SteelSmooth0.25"0.47"3/64"5/16"8483A590000
    0.07"0.187"3718-8 Stainless Steel
    Smooth0.25"0.47"3/64"5/16"8483A290000
    0.07"0.187"37SteelSmooth0.25"0.47"3/64"5/16"8483A530000
    0.09"0.25"2518-8 Stainless Steel
    Smooth0.312"0.64"3/64"3/8"8483A310000
    0.09"0.25"25SteelSmooth0.312"0.64"3/64"3/8"8483A610000
    0.09"0.25"41018-8 Stainless Steel
    Smooth0.312"0.64"3/64"3/8"8483A320000
    0.09"0.25"410SteelSmooth0.312"0.64"3/64"3/8"8483A540000
    0.11"0.312"2.5718-8 Stainless Steel
    Smooth0.375"0.79"5/64"1/2"8483A330000
    0.11"0.312"2.57SteelSmooth0.375"0.79"5/64"1/2"8483A620000
    0.11"0.312"51418-8 Stainless Steel
    Smooth0.375"0.79"5/64"1/2"8483A340000
    0.11"0.312"514SteelSmooth0.375"0.79"5/64"1/2"8483A550000
    0.161"0.437"4918-8 Stainless Steel
    Smooth0.5"1.1"7/64"11/16"8483A350000
    0.161"0.437"49SteelSmooth0.5"1.1"7/64"11/16"8483A630000
    0.161"0.437"81818-8 Stainless Steel
    Smooth0.5"1.1"7/64"11/16"8483A360000
    0.161"0.437"818SteelSmooth0.5"1.1"7/64"11/16"8483A560000
     
    Flush Profile
     
    440C Stainless Steel Nose
    0.035"0.094"0.41.318-8 Stainless Steel
    Knurled0.148"0.29"8262A150000
    0.035"0.094"0.41.3SteelKnurled0.148"0.29"8262A110000
    0.058"0.156"12.518-8 Stainless Steel
    Knurled0.21"0.44"8262A320000
    0.058"0.156"12.5SteelKnurled0.21"0.44"8262A310000
    0.07"0.188"1.53.518-8 Stainless Steel
    Knurled0.254"0.52"8262A160000
    0.07"0.188"1.53.5SteelKnurled0.254"0.52"8262A120000
    0.07"0.188"3718-8 Stainless Steel
    Knurled0.254"0.52"8262A340000
    0.07"0.188"37SteelKnurled0.254"0.52"8262A330000
    0.09"0.25"2518-8 Stainless Steel
    Knurled0.316"0.7"8262A360000
    0.09"0.25"25SteelKnurled0.316"0.7"8262A350000
    0.09"0.25"41018-8 Stainless Steel
    Knurled0.316"0.7"8262A380000
    0.09"0.25"410SteelKnurled0.316"0.7"8262A370000
    0.11"0.312"51418-8 Stainless Steel
    Knurled0.379"0.87"8262A410000
    0.11"0.312"514SteelKnurled0.379"0.87"8262A390000
    0.11"0.313"2.5718-8 Stainless Steel
    Knurled0.379"0.87"8262A170000
    0.11"0.313"2.57SteelKnurled0.379"0.87"8262A130000
    0.161"0.437"818SteelKnurled0.504"1.21"8262A420000
    0.161"0.438"4918-8 Stainless Steel
    Knurled0.504"1.21"8262A180000
    0.161"0.438"49SteelKnurled0.504"1.21"8262A140000
     
    420 Stainless Steel Nose
    0.65 mm2 mm11.718-8 Stainless Steel
    Smooth3 mm7 mm8262A210000
    0.8 mm2.5 mm1.33.218-8 Stainless Steel
    Smooth3.5 mm9 mm8262A220000
    0.9 mm3 mm1.83.218-8 Stainless Steel
    Smooth4 mm11 mm8262A230000
    1 mm3.5 mm2.5418-8 Stainless Steel
    Smooth5 mm13 mm8262A250000
    1.5 mm4.5 mm4718-8 Stainless Steel
    Smooth6 mm15 mm8262A270000
     

    Press-Fit Long-Nose Spring Plungers

    Push these spring plungers into unthreaded holes to lock heavy moving parts securely in place. Often used in indexing applications, they have a longer nose than ball-nose spring plungers to withstand greater side forces without disengaging. The nose compresses when a part presses against it, and then pops out into deep notches or grooves for a strong hold.
    For a snug fit, use an arbor press to install these spring plungers in a slightly smaller hole than the body diameter.
    Flanged Profile—The flanged body stops the spring plunger from sliding back through the hole when the nose compresses under a strong force. It also acts as a gripping tab so you can pull the plunger out to make adjustments.
    Flush Profile—These plungers mount flush against the surface to prevent snagging.
    Steel Nose—The strongest, most wear-resistant noses, these won't deform from stress and vibration. Steel is best for dry environments, however, since moisture will cause it to rust.
    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.
    Acetal Nose—The best plastic for damp and wet environments, acetal won't swell or lose strength if exposed to moisture. These noses are extra soft to avoid scratching delicate surfaces. They are best for use on soft materials, such as aluminum.
    Nose
    Nose
    Force, lbf
    Body
    Flange
    Extended
    Lg.
    Dia.
    Extended
    Compressed
    Material
    Dia.
    Lg.
    Thick.
    Dia.
    Each
    Flanged Profile
     
    Image of Product. Front orientation. Spring Plungers. Press-Fit Long-Nose Spring Plungers, Flanged Profile.
    Image of Attribute. Front orientation. Contains Annotated. Press-Fit Long-Nose Spring Plungers, Flanged Profile.
    Steel Nose
    0.062"0.07"12Black-Oxide Steel0.125"0.25"1/32"3/16"8683A6700000
    0.094"0.121"0.82Black-Oxide Steel0.188"0.44"3/64"1/4"8683A110000
    0.094"0.121"1.54.5Black-Oxide Steel0.188"0.44"3/64"1/4"8683A210000
    0.125"0.168"1.33Black-Oxide Steel0.25"0.52"1/16"5/16"8683A120000
    0.125"0.168"2.56Black-Oxide Steel0.25"0.52"1/16"5/16"8683A220000
    0.151"0.186"410Black-Oxide Steel0.312"0.64"3/64"3/8"8683A660000
    0.187"0.234"2.57Black-Oxide Steel0.375"0.79"3/32"1/2"8683A130000
    0.187"0.234"514Black-Oxide Steel0.375"0.79"3/32"1/2"8683A230000
    0.25"0.332"49Black-Oxide Steel0.5"1.1"1/8"11/16"8683A140000
    0.25"0.332"818Black-Oxide Steel0.5"1.1"1/8"11/16"8683A240000
     
    Image of Product. Front orientation. Spring Plungers. Press-Fit Long-Nose Spring Plungers, Flanged Profile.
    Image of Attribute. Front orientation. Contains Annotated. Press-Fit Long-Nose Spring Plungers, Flanged Profile.
    18-8 Stainless Steel Nose
    0.062"0.07"1218-8 Stainless Steel
    0.125"0.25"1/32"3/16"8682A570000
    0.094"0.121"0.8218-8 Stainless Steel
    0.188"0.44"3/64"1/4"8682A610000
    0.094"0.121"1.54.518-8 Stainless Steel
    0.188"0.44"3/64"1/4"8682A710000
    0.125"0.168"1.3318-8 Stainless Steel
    0.25"0.52"1/16"5/16"8682A620000
    0.125"0.168"2.5618-8 Stainless Steel
    0.25"0.52"1/16"5/16"8682A720000
    0.151"0.186"41018-8 Stainless Steel
    0.312"0.64"3/64"3/8"8682A560000
    0.187"0.234"2.5718-8 Stainless Steel
    0.375"0.79"3/32"1/2"8682A630000
    0.187"0.234"51418-8 Stainless Steel
    0.375"0.79"3/32"1/2"8682A730000
    0.25"0.332"4918-8 Stainless Steel
    0.5"1.1"1/8"11/16"8682A640000
    0.25"0.332"81818-8 Stainless Steel
    0.5"1.1"1/8"11/16"8682A740000
     
    Image of Product. Front orientation. Spring Plungers. Press-Fit Long-Nose Spring Plungers, Flanged Profile.
    Image of Attribute. Front orientation. Contains Annotated. Press-Fit Long-Nose Spring Plungers, Flanged Profile.
    Acetal Nose
    0.094"0.121"0.8218-8 Stainless Steel
    0.188"0.44"3/64"1/4"8682A550000
    0.094"0.121"0.82Black-Oxide Steel0.188"0.44"3/64"1/4"8683A190000
    0.094"0.121"1.54.518-8 Stainless Steel
    0.188"0.44"3/64"1/4"8682A510000
    0.094"0.121"1.54.5Black-Oxide Steel0.188"0.44"3/64"1/4"8683A150000
    0.125"0.168"1.3318-8 Stainless Steel
    0.25"0.52"1/16"5/16"8682A580000
    0.125"0.168"1.33Black-Oxide Steel0.25"0.52"1/16"5/16"8683A250000
    0.125"0.168"2.5618-8 Stainless Steel
    0.25"0.52"1/16"5/16"8682A520000
    0.125"0.168"2.56Black-Oxide Steel0.25"0.52"1/16"5/16"8683A160000
    0.187"0.234"2.5718-8 Stainless Steel
    0.375"0.79"3/32"1/2"8682A590000
    0.187"0.234"2.57Black-Oxide Steel0.375"0.79"3/32"1/2"8683A260000
    0.187"0.234"51418-8 Stainless Steel
    0.375"0.79"3/32"1/2"8682A530000
    0.187"0.234"514Black-Oxide Steel0.375"0.79"3/32"1/2"8683A170000
    0.25"0.332"4918-8 Stainless Steel
    0.5"1.1"1/8"11/16"8682A650000
    0.25"0.332"49Black-Oxide Steel0.5"1.1"1/8"11/16"8683A270000
    0.25"0.332"81818-8 Stainless Steel
    0.5"1.1"1/8"11/16"8682A540000
    0.25"0.332"818Black-Oxide Steel0.5"1.1"1/8"11/16"8683A180000
     
    Flush Profile
     
    Image of Product. Front orientation. Spring Plungers. Press-Fit Long-Nose Spring Plungers, Flush Profile.
    Image of Attribute. Front orientation. Contains Annotated. Press-Fit Long-Nose Spring Plungers, Flush Profile.
    Steel Nose
    0.25"0.125"0.50.92011 Aluminum
    0.25"0.63"6423A120000
    0.438"0.25"0.31.12011 Aluminum
    0.34"0.81"6423A1600000
    0.5"0.125"0.312011 Aluminum
    0.25"0.75"6423A230000
    0.5"0.125"0.31.12011 Aluminum
    0.25"0.75"6423A220000
    0.5"0.188"0.31.52011 Aluminum
    0.31"0.75"6423A170000
    0.563"0.094"0.31.12011 Aluminum
    0.25"1"6423A140000
    0.563"0.125"0.30.82011 Aluminum
    0.25"1"6423A180000
    0.563"0.125"0.30.92011 Aluminum
    0.25"1"6423A110000
    0.563"0.156"0.20.72011 Aluminum
    0.25"1"6423A150000
    0.813"0.125"0.31.12011 Aluminum
    0.25"1.25"6423A2100000
     

    Tight-Hold Ball-Nose Spring Plungers

    Image of Product. Front orientation. Spring Plungers. Tight-Hold Ball-Nose Spring Plungers, Flanged Profile.

    Flanged Profile

    Image of Attribute. Front orientation. Contains Annotated. Tight-Hold Ball-Nose Spring Plungers, Flanged Profile.

    Flanged Profile

    These spring plungers defy gravity by gripping unthreaded holes, even in overhead and vertical applications. They have an O-ring that squeezes against the sides of the hole to keep the plunger firmly in place. The spring-loaded ball compresses when a part presses against it, and then pops out into a notch or groove to hold the part in place. Use these spring plungers to hold parts in vertical conveyor systems and lock attachments on overhead machinery.
    For a snug fit, use an arbor press to install these spring plungers in a slightly smaller hole than the body diameter.
    Flanged Profile—The flanged body stops the spring plunger from sliding back through the hole when the nose compresses under a strong force. It also acts as a gripping tab so you can pull the plunger out to make adjustments.
    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.
    Nose
    Nose
    Force, lbf
    Body
    Flange
    Extended
    Lg.
    Dia.
    Extended
    Compressed
    Material
    Dia.
    Lg.
    Thick.
    Dia.
    O-Ring
    Material
    Each
    Flanged Profile
     
    18-8 Stainless Steel Nose
    0.032"0.118"0.71.618-8 Stainless Steel
    0.158"0.11"3/32"3/16"Buna-N
    1368A1100000
    0.039"0.158"0.91.618-8 Stainless Steel
    0.197"0.15"3/32"1/4"Buna-N
    1368A120000
    0.059"0.197"1.32.718-8 Stainless Steel
    0.236"0.13"5/32"5/16"Buna-N
    1368A130000
    0.071"0.256"1.32.718-8 Stainless Steel
    0.315"0.19"11/64"3/8"Buna-N
    1368A140000
    0.106"0.315"2.24.518-8 Stainless Steel
    0.394"0.32"13/64"1/2"Buna-N
    1368A150000
    0.138"0.394"3.45.618-8 Stainless Steel
    0.473"0.41"7/32"0.549"Buna-N
    1368A1600000
     

    Press-Fit Catches for Ball-Nose Spring Plungers

    Image of Product. Front orientation. Contains Annotated. Spring Plunger Catches. Press-Fit Catches for Ball-Nose Spring Plungers.
    Press these catches into a hole. A countersunk indentation acts as a stop for ball-nose spring plungers. Also known as ball buttons, they withstand side loads to prevent fixture damage. Made from 440C stainless steel, they're mildly chemical resistant and may be mildly magnetic.
    440C
    Stainless Steel
    For Nose
    Dia.
    Lg.
    OD
    Detent
    Dia.
    Each
    0.062"1/8"0.108"0.056"33545A2100000
    0.078"1/8"0.118"0.061"33545A280000
    0.094"3/16"0.161"0.069"33545A220000
    0.125"1/4"0.203"0.111"33545A230000
    0.156"5/16"0.266"0.139"33545A240000
    0.188"3/8"0.328"0.164"33545A250000
    0.281"1/2"0.438"0.241"33545A260000
    0.375"5/8"0.547"0.33"33545A270000

    Retractable Spring Plungers for Panels

    Manually lock and release panels, drawers, doors, and other sliding components with these spring plungers. The body inserts into the outer panel and the nose extends and retracts to control the inner sliding panel.
    Press Fit
    Image of ProductInUse. Front orientation. Contains Annotated. Spring Plungers. Retractable Spring Plungers for Panels, Press Fit.
    Image of Product. Front orientation. Contains Annotated. Retractable Spring Plungers for Panels, Press Fit.
    Image of Product. Front orientation. Spring Plungers. Retractable Spring Plungers for Panels, Press Fit.
    Best for thick panels. Use an arbor press or similar pressure tool to install these spring plungers into the outer panel.
    Steel Nose—The strongest, most wear-resistant noses, these won't deform from stress and vibration. Steel is best for dry environments, however, since moisture will cause it to rust.
    Twist-to-Lock—Pull back the handle and twist to lock the nose in its retracted position.
    For
    Hole Dia.
    Nose
    Body
    Nonlocking
    Twist-to-Lock
    For Outer Panel
    Thk.
    Outer
    Panel
    Inner
    Panel
    Extended
    Lg.
    Dia.
    Material
    Dia.
    Lg.
    Handle Material
    Each
    Each
     
    Steel Nose
    0.06" to 0.15"0.328"0.252"0.32"0.249"Zinc-Plated Steel0.45"0.48"Nickel-Plated Steel96063A1200000096063A11000000
     
    back to top