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    34 Products

    Ball-Nose Spring Plungers

    Image of Product. Front orientation. Spring Plungers. Ball-Nose Spring Plungers.
    Image of Attribute. Front orientation. Contains Annotated. Ball-Nose Spring Plungers.
    Align, position, and lock moving parts for most machining and assembly tasks. These spring plungers have a spring-loaded ball that compresses when a part presses against it, and then pops out into a notch or groove to hold the part in place. Unlike long-nose spring plungers, the ball rolls easily in and out of position, so they're a great fit for applications that require consistent, smooth movement, such as positioning parts in an assembly line and aligning fixtures and jigs when cutting or drilling.
    Spring plungers are available with or without a threadlocker. Those with a threadlocker won't wiggle loose from vibration. Spring plungers without a threadlocker are easier to remove.
    Brass Nose—Similar to 18-8 stainless steel, brass is corrosion resistant enough to stand up to wet environments. Since brass is softer than other metals, these noses are less likely to dent surfaces, however, they could deform under high stress.
    Spring Plungers
    Spring
    Plunger Drivers
    Nose
    Nose
    Force, lbf
    Body
    Drive
    Style
    Thread
    Size
    Extended
    Lg.
    Dia.
    Extended
    Compressed
    Material
    Lg.
    Front
    Back
    Each
    Each
    Brass Nose
    4-48
    0.02"0.062"0.10.5Brass0.19"Spring Plunger Driver
    Slotted
    8687A1100000———0
    5-40
    0.02"0.062"0.30.8Brass0.25"Spring Plunger Driver
    Slotted
    8687A120000———0
    6-40
    0.023"0.078"0.51Brass0.31"Spring Plunger Driver
    Slotted
    8687A130000———0
    8-32
    0.025"0.094"0.51.3Brass0.34"Spring Plunger Driver
    Slotted
    8687A1400003382A1200000
    8-36
    0.025"0.094"0.51.3Brass0.34"Spring Plunger Driver
    Slotted
    8687A150000———0
    10-32
    0.025"0.094"1.53Brass0.51"Spring Plunger Driver
    Slotted
    8687A1600003382A130000
    10-32
    0.025"0.094"25Brass0.51"Spring Plunger Driver
    Slotted
    8687A1700003382A130000
    1/4"-20
    0.035"0.125"24Brass0.53"Spring Plunger Driver
    Slotted
    8687A1800003382A140000
    1/4"-20
    0.035"0.125"412Brass0.53"Spring Plunger Driver
    Slotted
    8687A1900003382A140000
    5/16"-18
    0.04"0.156"617Brass0.58"Spring Plunger Driver
    Slotted
    8687A21000003382A150000
    3/8"-16
    0.048"0.188"510Brass0.63"Spring Plunger Driver
    Slotted
    8687A22000003382A160000
    1/2"-13
    0.072"0.281"630Brass0.75"Spring Plunger Driver
    Slotted
    8687A23000003382A170000
    5/8"-11
    0.096"0.375"750Brass0.98"Spring Plunger Driver
    Slotted
    8687A24000003382A1800000
     

    Ring-Grip Quick-Release Pins

    The most common choice for tight spaces. The split ring folds down when these pins are installed, and you can pull with just one finger to remove. Keep them from getting lost by adding a lanyard, or choose a pin that includes one. You can also attach tags to the ring to identify components. Pins have a retaining ball to hold them in place.
    Brass
    Image of Product. Front orientation. Contains Annotated. Quick-Release Pins. Ring-Grip Quick-Release Pins.
    360 Brass—Often used outdoors, these pins resist corrosion and won’t become brittle and snap in low temperatures. Brass is softer than other metals, however, so pins could deform under stress.
    Usable
    Lg.
    Dia. at Extended
    Ball Ht.
    Single Shear Breaking
    Strength
    Min.
    Hardness
    Handle
    Material
    Ball Material
    Each
    360 Brass
     
    3/16" Diameter
    1"0.205"Not RatedNot RatedSteelStainless Steel
    92342A40100000
    1 1/2"0.205"Not RatedNot RatedSteelStainless Steel
    92342A4020000
    2"0.205"Not RatedNot RatedSteelStainless Steel
    92342A4030000
     
    1/4" Diameter
    1"0.286"Not RatedNot RatedSteelStainless Steel
    92342A4040000
    1 1/2"0.286"Not RatedNot RatedSteelStainless Steel
    92342A4050000
    2"0.286"Not RatedNot RatedSteelStainless Steel
    92342A4060000
    2 1/2"0.286"Not RatedNot RatedSteelStainless Steel
    92342A4070000
     
    5/16" Diameter
    1 1/2"0.36"Not RatedNot RatedSteelStainless Steel
    92342A4080000
    3"0.36"Not RatedNot RatedSteelStainless Steel
    92342A4110000
     

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

    Flanged 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.
    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.
    Smooth Body—These spring plungers slide effortlessly into unthreaded holes, but don't grip quite as firmly as those with a knurled body.
    Nose,
    mm
    Nose
    Force, lbf
    Body
    Flange,
    mm
    Extended
    Lg.
    Dia.
    Extended
    Compressed
    Material
    Texture
    Dia.,
    mm
    Lg.,
    mm
    Thick.
    Dia.
    Each
    Flanged Profile
     
    420 Stainless Steel Nose
    0.62.40.40.8BrassSmooth33.40.63.65848N1100000
    0.830.71.3BrassSmooth4414.55848N120000
    140.91.5BrassSmooth5515.55848N130000
    1.651.32.6BrassSmooth6616.55848N140000
    1.96.51.82.8BrassSmooth8818.55848N150000
     
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