McMaster-Carr logo
    Filter by
    Spring Plunger Nose Type
    System of Measurement
    Thread Type
    Industrial Info Compare
    Thread Spacing
    Industrial Info Compare
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    DFARS Specialty Metals
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Comments
    E-mail address (if you would like a response)
    412 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.
    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.
    316 Stainless Steel Nose—With the best corrosion resistance of all, 316 stainless steel stands up to harsh weather, salt water, and chemicals. The nose is strong enough for most jobs, but won't withstand stress and vibration as well as steel.
    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.
    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.
    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
    440C Stainless Steel Nose
    4-48
    0.02"0.062"0.10.518-8 Stainless Steel
    0.19"Spring Plunger Driver
    Slotted
    3408A8800000———0
    4-48
    0.02"0.062"0.10.5Steel0.19"Spring Plunger Driver
    Slotted
    3408A650000———0
    5-40
    0.02"0.062"0.30.818-8 Stainless Steel
    0.25"Spring Plunger Driver
    Slotted
    3408A890000———0
    5-40
    0.02"0.062"0.30.8Steel0.25"Spring Plunger Driver
    Slotted
    3408A660000———0
    6-40
    0.023"0.078"0.5118-8 Stainless Steel
    0.31"Spring Plunger Driver
    Slotted
    3408A90000———0
    6-40
    0.023"0.078"0.5118-8 Stainless Steel
    0.35"Spring Plunger Driver
    Hex
    5901A310000———0
    6-40
    0.023"0.078"0.51Steel0.31"Spring Plunger Driver
    Slotted
    3408A670000———0
    6-40
    0.023"0.078"0.51Black-Oxide Steel0.35"Spring Plunger Driver
    Hex
    5901A110000———0
    8-32
    0.025"0.094"0.51.318-8 Stainless Steel
    0.34"Spring Plunger Driver
    Slotted
    3408A9100003382A1200000
    8-32
    0.025"0.094"0.51.318-8 Stainless Steel
    0.45"Spring Plunger Driver
    Hex
    5901A3200003382A120000
    8-32
    0.025"0.094"0.51.3Steel0.34"Spring Plunger Driver
    Slotted
    3408A6800003382A120000
    8-32
    0.025"0.094"0.51.3Black-Oxide Steel0.45"Spring Plunger Driver
    Hex
    5901A1200003382A120000
    8-36
    0.025"0.094"0.51.318-8 Stainless Steel
    0.34"Spring Plunger Driver
    Slotted
    3408A920000———0
    8-36
    0.025"0.094"0.51.3Steel0.34"Spring Plunger Driver
    Slotted
    3408A690000———0
    10-24
    0.025"0.094"2518-8 Stainless Steel
    0.51"Spring Plunger Driver
    Slotted
    3408A6210000———0
    10-24
    0.025"0.094"25Steel0.51"Spring Plunger Driver
    Slotted
    3408A5210000———0
    10-32
    0.025"0.094"0.51.518-8 Stainless Steel
    0.51"Spring Plunger Driver
    Slotted
    3408A9300003382A130000
    10-32
    0.025"0.094"0.51.5Steel0.51"Spring Plunger Driver
    Slotted
    3408A700003382A130000
    10-32
    0.025"0.094"1.5318-8 Stainless Steel
    0.51"Spring Plunger Driver
    Slotted
    3408A9400003382A130000
    10-32
    0.025"0.094"1.5318-8 Stainless Steel
    0.57"Spring Plunger Driver
    Hex
    5901A3300003382A130000
    10-32
    0.025"0.094"1.53Steel0.51"Spring Plunger Driver
    Slotted
    3408A7100003382A130000
    10-32
    0.025"0.094"1.53Black-Oxide Steel0.57"Spring Plunger Driver
    Hex
    5901A1300003382A130000
    10-32
    0.025"0.094"2518-8 Stainless Steel
    0.51"Spring Plunger Driver
    Slotted
    3408A9500003382A130000
    10-32
    0.025"0.094"25Steel0.51"Spring Plunger Driver
    Slotted
    3408A7200003382A130000
    1/4"-20
    0.03"0.125"12.5Acetal
    0.53"Slotted
    84775A420000———0
    1/4"-20
    0.03"0.125"25Acetal
    0.53"Slotted
    84775A410000———0
    1/4"-20
    0.035"0.125"2418-8 Stainless Steel
    0.53"Spring Plunger Driver
    Slotted
    3408A9600003382A140000
    1/4"-20
    0.035"0.125"24Steel0.53"Spring Plunger Driver
    Slotted
    3408A7300003382A140000
    1/4"-20
    0.035"0.125"3718-8 Stainless Steel
    0.53"Spring Plunger Driver
    Slotted
    3408A9700003382A140000
    1/4"-20
    0.035"0.125"3718-8 Stainless Steel
    0.68"Spring Plunger Driver
    Hex
    5901A3400003382A140000
    1/4"-20
    0.035"0.125"37Steel0.53"Spring Plunger Driver
    Slotted
    3408A7400003382A140000
    1/4"-20
    0.035"0.125"37Black-Oxide Steel0.68"Spring Plunger Driver
    Hex
    5901A1400003382A140000
    1/4"-20
    0.035"0.125"41218-8 Stainless Steel
    0.53"Spring Plunger Driver
    Slotted
    3408A9800003382A140000
    1/4"-20
    0.035"0.125"412Steel0.53"Spring Plunger Driver
    Slotted
    3408A7500003382A140000
    1/4"-28
    0.035"0.125"41218-8 Stainless Steel
    0.53"Spring Plunger Driver
    Slotted
    3408A631000003382A140000
    1/4"-28
    0.035"0.125"412Steel0.53"Spring Plunger Driver
    Slotted
    3408A53100003382A140000
    5/16"-18
    0.039"0.156"24.5Acetal
    0.58"Slotted
    84775A440000———0
    5/16"-18
    0.039"0.156"49Acetal
    0.58"Slotted
    84775A430000———0
    5/16"-18
    0.04"0.156"24.518-8 Stainless Steel
    0.58"Spring Plunger Driver
    Slotted
    3408A9900003382A150000
    5/16"-18
    0.04"0.156"24.5Steel0.58"Spring Plunger Driver
    Slotted
    3408A7600003382A150000
    5/16"-18
    0.04"0.156"4918-8 Stainless Steel
    0.58"Spring Plunger Driver
    Slotted
    3408A100003382A150000
    5/16"-18
    0.04"0.156"4918-8 Stainless Steel
    0.72"Spring Plunger Driver
    Hex
    5901A35000003382A150000
    5/16"-18
    0.04"0.156"49Steel0.58"Spring Plunger Driver
    Slotted
    3408A7700003382A150000
    5/16"-18
    0.04"0.156"49Black-Oxide Steel0.72"Spring Plunger Driver
    Hex
    5901A1500003382A150000
    5/16"-18
    0.04"0.156"61718-8 Stainless Steel
    0.58"Spring Plunger Driver
    Slotted
    3408A200003382A150000
    5/16"-18
    0.04"0.156"617Steel0.58"Spring Plunger Driver
    Slotted
    3408A7800003382A150000
    5/16"-24
    0.04"0.156"61718-8 Stainless Steel
    0.58"Spring Plunger Driver
    Slotted
    3408A64100000———0
    5/16"-24
    0.04"0.156"617Steel0.58"Spring Plunger Driver
    Slotted
    3408A5410000———0
    3/8"-16
    0.048"0.188"2.5518-8 Stainless Steel
    0.63"Spring Plunger Driver
    Slotted
    3408A300003382A160000
    3/8"-16
    0.048"0.188"2.55Steel0.63"Spring Plunger Driver
    Slotted
    3408A7900003382A160000
    3/8"-16
    0.048"0.188"51018-8 Stainless Steel
    0.63"Spring Plunger Driver
    Slotted
    3408A500003382A160000
    3/8"-16
    0.048"0.188"51018-8 Stainless Steel
    0.8"Spring Plunger Driver
    Hex
    5901A36000003382A160000
    3/8"-16
    0.048"0.188"510Steel0.63"Spring Plunger Driver
    Slotted
    3408A800003382A160000
    3/8"-16
    0.048"0.188"510Black-Oxide Steel0.8"Spring Plunger Driver
    Hex
    5901A1600003382A160000
    3/8"-16
    0.048"0.188"62118-8 Stainless Steel
    0.63"Spring Plunger Driver
    Slotted
    3408A600003382A160000
    3/8"-16
    0.048"0.188"621Steel0.63"Spring Plunger Driver
    Slotted
    3408A8100003382A160000
    3/8"-16
    0.053"0.187"2.55Acetal
    0.63"Slotted
    84775A460000———0
    3/8"-16
    0.053"0.187"510Acetal
    0.63"Slotted
    84775A450000———0
    3/8"-24
    0.048"0.188"62118-8 Stainless Steel
    0.63"Spring Plunger Driver
    Slotted
    3408A65100000———0
    3/8"-24
    0.048"0.188"621Steel0.63"Spring Plunger Driver
    Slotted
    3408A5510000———0
    1/2"-13
    0.072"0.281"3618-8 Stainless Steel
    0.75"Spring Plunger Driver
    Slotted
    3408A5100003382A170000
    1/2"-13
    0.072"0.281"36Steel0.75"Spring Plunger Driver
    Slotted
    3408A8200003382A170000
    1/2"-13
    0.072"0.281"61218-8 Stainless Steel
    0.75"Spring Plunger Driver
    Slotted
    3408A5500003382A170000
    1/2"-13
    0.072"0.281"61218-8 Stainless Steel
    1.05"Spring Plunger Driver
    Hex
    5901A37000003382A170000
    1/2"-13
    0.072"0.281"612Steel0.75"Spring Plunger Driver
    Slotted
    3408A8300003382A170000
    1/2"-13
    0.072"0.281"612Black-Oxide Steel1.05"Spring Plunger Driver
    Hex
    5901A1700003382A170000
    1/2"-13
    0.072"0.281"63018-8 Stainless Steel
    0.75"Spring Plunger Driver
    Slotted
    3408A5600003382A170000
    1/2"-13
    0.072"0.281"630Steel0.75"Spring Plunger Driver
    Slotted
    3408A8400003382A170000
    1/2"-20
    0.072"0.281"63018-8 Stainless Steel
    0.75"Spring Plunger Driver
    Slotted
    3408A66100000———0
    1/2"-20
    0.072"0.281"630Steel0.75"Spring Plunger Driver
    Slotted
    3408A5610000———0
    5/8"-11
    0.096"0.375"4.5918-8 Stainless Steel
    0.98"Spring Plunger Driver
    Slotted
    3408A57000003382A1800000
    5/8"-11
    0.096"0.375"4.59Steel0.98"Spring Plunger Driver
    Slotted
    3408A8500003382A1800000
    5/8"-11
    0.096"0.375"75018-8 Stainless Steel
    0.98"Spring Plunger Driver
    Slotted
    3408A59000003382A1800000
    5/8"-11
    0.096"0.375"750Steel0.98"Spring Plunger Driver
    Slotted
    3408A8700003382A1800000
    5/8"-11
    0.096"0.375"91818-8 Stainless Steel
    0.98"Spring Plunger Driver
    Slotted
    3408A58000003382A1800000
    5/8"-11
    0.096"0.375"91818-8 Stainless Steel
    1.25"Spring Plunger Driver
    Hex
    5901A38000003382A1800000
    5/8"-11
    0.096"0.375"918Steel0.98"Spring Plunger Driver
    Slotted
    3408A8600003382A1800000
    5/8"-11
    0.096"0.375"918Black-Oxide Steel1.25"Spring Plunger Driver
    Hex
    5901A1800003382A1800000
    M3 x 0.5 mm0.4 mm1.5 mm0.7118-8 Stainless Steel
    7 mmSpring Plunger Driver
    Slotted
    85015A3100000———0
    M3 x 0.5 mm0.4 mm1.5 mm0.71Steel7 mmSpring Plunger Driver
    Slotted
    3391A650000———0
    M4 x 0.7 mm0.8 mm2.5 mm0.92.318-8 Stainless Steel
    9 mmSpring Plunger Driver
    Slotted
    85015A4600003382A120000
    M4 x 0.7 mm0.8 mm2.5 mm0.92.3Steel9 mmSpring Plunger Driver
    Slotted
    3391A3100003382A120000
    M5 x 0.8 mm0.9 mm3 mm1.83.2Steel12 mmSpring Plunger Driver
    Slotted
    3391A6600003382A130000
    M5 x 0.8 mm0.9 mm3 mm3.45Steel12 mmSpring Plunger Driver
    Slotted
    3391A6700003382A130000
    M5 x 0.8 mm0.9 mm3.5 mm1.83.218-8 Stainless Steel
    12 mmSpring Plunger Driver
    Slotted
    85015A32000003382A130000
    M5 x 0.8 mm0.9 mm3.5 mm3.4518-8 Stainless Steel
    12 mmSpring Plunger Driver
    Slotted
    85015A33000003382A130000
    M6 x 1 mm1 mm3.5 mm0.51.418-8 Stainless Steel
    14 mmSpring Plunger Driver
    Slotted
    85015A4800003382A140000
    M6 x 1 mm1 mm3.5 mm0.51.4Steel14 mmSpring Plunger Driver
    Slotted
    3391A3300003382A140000
    M6 x 1 mm1 mm3.5 mm22.918-8 Stainless Steel
    14 mmSpring Plunger Driver
    Slotted
    85015A4700003382A140000
    M6 x 1 mm1 mm3.5 mm22.9Steel14 mmSpring Plunger Driver
    Slotted
    3391A3200003382A140000
    M6 x 1 mm1 mm3.5 mm6.3918-8 Stainless Steel
    14 mmSpring Plunger Driver
    Slotted
    85015A4900003382A140000
    M6 x 1 mm1 mm3.5 mm6.39Steel14 mmSpring Plunger Driver
    Slotted
    3391A3400003382A140000
    M8 x 1.25 mm1.5 mm5 mm1.12.318-8 Stainless Steel
    16 mmSpring Plunger Driver
    Slotted
    85015A52000003382A150000
    M8 x 1.25 mm1.5 mm5 mm1.12.3Steel16 mmSpring Plunger Driver
    Slotted
    3391A3600003382A150000
    M8 x 1.25 mm1.5 mm5 mm3.46.718-8 Stainless Steel
    16 mmSpring Plunger Driver
    Slotted
    85015A51000003382A150000
    M8 x 1.25 mm1.5 mm5 mm3.46.7Steel16 mmSpring Plunger Driver
    Slotted
    3391A3500003382A150000
    M8 x 1.25 mm1.5 mm5 mm913.418-8 Stainless Steel
    16 mmSpring Plunger Driver
    Slotted
    85015A53000003382A150000
    M8 x 1.25 mm1.5 mm5 mm913.4Steel16 mmSpring Plunger Driver
    Slotted
    3391A3700003382A150000
    M10 x 1.5 mm2 mm6 mm1.83.418-8 Stainless Steel
    19 mmSpring Plunger Driver
    Slotted
    85015A55000003382A160000
    M10 x 1.5 mm2 mm6 mm1.83.4Steel19 mmSpring Plunger Driver
    Slotted
    3391A3900003382A160000
    M10 x 1.5 mm2 mm6 mm4.57.818-8 Stainless Steel
    19 mmSpring Plunger Driver
    Slotted
    85015A54000003382A160000
    M10 x 1.5 mm2 mm6 mm4.57.8Steel19 mmSpring Plunger Driver
    Slotted
    3391A3800003382A160000
    M10 x 1.5 mm2 mm6 mm13.42018-8 Stainless Steel
    19 mmSpring Plunger Driver
    Slotted
    85015A56000003382A160000
    M10 x 1.5 mm2 mm6 mm13.420Steel19 mmSpring Plunger Driver
    Slotted
    3391A4100003382A160000
    M12 x 1.75 mm2.5 mm8 mm2.34.518-8 Stainless Steel
    22 mmSpring Plunger Driver
    Slotted
    85015A58000003382A170000
    M12 x 1.75 mm2.5 mm8 mm2.34.5Steel22 mmSpring Plunger Driver
    Slotted
    3391A4300003382A170000
    M12 x 1.75 mm2.5 mm8 mm6.712.318-8 Stainless Steel
    22 mmSpring Plunger Driver
    Slotted
    85015A57000003382A170000
    M12 x 1.75 mm2.5 mm8 mm6.712.3Steel22 mmSpring Plunger Driver
    Slotted
    3391A4200003382A170000
    M12 x 1.75 mm2.5 mm8 mm16.825.718-8 Stainless Steel
    22 mmSpring Plunger Driver
    Slotted
    85015A59000003382A170000
    M12 x 1.75 mm2.5 mm8 mm16.825.7Steel22 mmSpring Plunger Driver
    Slotted
    3391A4400003382A170000
    M16 x 2 mm2.4 mm9.5 mm4.48.818-8 Stainless Steel
    25.4 mmSpring Plunger Driver
    Slotted
    85015A43000003382A1800000
    M16 x 2 mm2.4 mm9.5 mm4.48.8Steel25.4 mmSpring Plunger Driver
    Slotted
    3391A48000003382A1800000
    M16 x 2 mm3.5 mm10 mm9.219.318-8 Stainless Steel
    24 mmSpring Plunger Driver
    Slotted
    85015A34000003382A1800000
    M16 x 2 mm3.5 mm10 mm9.219.3Steel24 mmSpring Plunger Driver
    Slotted
    3391A68000003382A1800000
    M16 x 2 mm3.5 mm10 mm15.33218-8 Stainless Steel
    24 mmSpring Plunger Driver
    Slotted
    85015A35000003382A1800000
    M16 x 2 mm3.5 mm10 mm15.332Steel24 mmSpring Plunger Driver
    Slotted
    3391A69000003382A1800000
     
    316 Stainless Steel Nose
    4-48
    0.02"0.062"0.10.5316 Stainless Steel
    0.19"Spring Plunger Driver
    Slotted
    8686A1100000———0
    5-40
    0.02"0.062"0.30.8316 Stainless Steel
    0.25"Spring Plunger Driver
    Slotted
    8686A1200000———0
    6-40
    0.023"0.078"0.51316 Stainless Steel
    0.31"Spring Plunger Driver
    Slotted
    8686A1300000———0
    8-32
    0.025"0.094"0.51.3316 Stainless Steel
    0.34"Spring Plunger Driver
    Slotted
    8686A14000003382A120000
    8-36
    0.025"0.094"0.51.3316 Stainless Steel
    0.34"Spring Plunger Driver
    Slotted
    8686A1500000———0
    10-32
    0.025"0.094"1.53316 Stainless Steel
    0.51"Spring Plunger Driver
    Slotted
    8686A16000003382A130000
    10-32
    0.025"0.094"25316 Stainless Steel
    0.51"Spring Plunger Driver
    Slotted
    8686A17000003382A130000
    1/4"-20
    0.035"0.125"24316 Stainless Steel
    0.53"Spring Plunger Driver
    Slotted
    8686A18000003382A140000
    1/4"-20
    0.035"0.125"412316 Stainless Steel
    0.53"Spring Plunger Driver
    Slotted
    8686A19000003382A140000
    5/16"-18
    0.04"0.156"617316 Stainless Steel
    0.58"Spring Plunger Driver
    Slotted
    8686A21000003382A150000
    3/8"-16
    0.048"0.188"510316 Stainless Steel
    0.63"Spring Plunger Driver
    Slotted
    8686A22000003382A160000
    1/2"-13
    0.072"0.281"630316 Stainless Steel
    0.75"Spring Plunger Driver
    Slotted
    8686A23000003382A170000
    5/8"-11
    0.096"0.375"750316 Stainless Steel
    0.98"Spring Plunger Driver
    Slotted
    8686A24000003382A1800000
     
    Brass Nose
    4-48
    0.02"0.062"0.10.5Brass0.19"Spring Plunger Driver
    Slotted
    8687A110000———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
    8687A1400003382A120000
    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
     
    Nylon Nose
    4-48
    0.02"0.062"0.10.518-8 Stainless Steel
    0.19"Spring Plunger Driver
    Slotted
    34085A350000———0
    4-48
    0.02"0.062"0.10.5Steel0.19"Spring Plunger Driver
    Slotted
    84805A510000———0
    5-40
    0.02"0.062"0.30.818-8 Stainless Steel
    0.25"Spring Plunger Driver
    Slotted
    34085A360000———0
    5-40
    0.02"0.062"0.30.8Steel0.25"Spring Plunger Driver
    Slotted
    84805A520000———0
    6-40
    0.023"0.078"0.5118-8 Stainless Steel
    0.31"Spring Plunger Driver
    Slotted
    34085A370000———0
    6-40
    0.023"0.078"0.51Steel0.31"Spring Plunger Driver
    Slotted
    84805A530000———0
    8-32
    0.025"0.094"0.51.318-8 Stainless Steel
    0.34"Spring Plunger Driver
    Slotted
    34085A500003382A120000
    8-32
    0.025"0.094"0.51.3Steel0.34"Spring Plunger Driver
    Slotted
    84805A5400003382A120000
    8-36
    0.025"0.094"0.51.318-8 Stainless Steel
    0.34"Spring Plunger Driver
    Slotted
    34085A380000———0
    8-36
    0.025"0.094"0.51.3Steel0.34"Spring Plunger Driver
    Slotted
    84805A550000———0
    10-32
    0.025"0.094"0.51.518-8 Stainless Steel
    0.51"Spring Plunger Driver
    Slotted
    34085A39000003382A130000
    10-32
    0.025"0.094"0.51.5Steel0.51"Spring Plunger Driver
    Slotted
    84805A6300003382A130000
    10-32
    0.025"0.094"1.5318-8 Stainless Steel
    0.51"Spring Plunger Driver
    Slotted
    34085A41000003382A130000
    10-32
    0.025"0.094"1.53Steel0.51"Spring Plunger Driver
    Slotted
    84805A5600003382A130000
    10-32
    0.025"0.094"2518-8 Stainless Steel
    0.51"Spring Plunger Driver
    Slotted
    34085A42000003382A130000
    10-32
    0.025"0.094"25Steel0.51"Spring Plunger Driver
    Slotted
    84805A6400003382A130000
    1/4"-20
    0.03"0.125"12.5Acetal
    0.53"Slotted
    84775A520000———0
    1/4"-20
    0.03"0.125"25Acetal
    0.53"Slotted
    84775A510000———0
    1/4"-20
    0.035"0.125"2418-8 Stainless Steel
    0.53"Spring Plunger Driver
    Slotted
    34085A4300003382A140000
    1/4"-20
    0.035"0.125"24Steel0.53"Spring Plunger Driver
    Slotted
    84805A6500003382A140000
    1/4"-20
    0.035"0.125"3718-8 Stainless Steel
    0.53"Spring Plunger Driver
    Slotted
    34085A4400003382A140000
    1/4"-20
    0.035"0.125"37Steel0.53"Spring Plunger Driver
    Slotted
    84805A5700003382A140000
    1/4"-20
    0.035"0.125"41218-8 Stainless Steel
    0.53"Spring Plunger Driver
    Slotted
    34085A4500003382A140000
    1/4"-20
    0.035"0.125"412Steel0.53"Spring Plunger Driver
    Slotted
    84805A6600003382A140000
    5/16"-18
    0.039"0.156"24.5Acetal
    0.58"Slotted
    84775A560000———0
    5/16"-18
    0.039"0.156"49Acetal
    0.58"Slotted
    84775A550000———0
    5/16"-18
    0.04"0.156"24.518-8 Stainless Steel
    0.58"Spring Plunger Driver
    Slotted
    34085A4600003382A150000
    5/16"-18
    0.04"0.156"24.5Steel0.58"Spring Plunger Driver
    Slotted
    84805A6700003382A150000
    5/16"-18
    0.04"0.156"4918-8 Stainless Steel
    0.58"Spring Plunger Driver
    Slotted
    34085A4700003382A150000
    5/16"-18
    0.04"0.156"49Steel0.58"Spring Plunger Driver
    Slotted
    84805A5800003382A150000
    5/16"-18
    0.04"0.156"61718-8 Stainless Steel
    0.58"Spring Plunger Driver
    Slotted
    34085A4800003382A150000
    5/16"-18
    0.04"0.156"617Steel0.58"Spring Plunger Driver
    Slotted
    84805A6800003382A150000
    3/8"-16
    0.048"0.188"2.5518-8 Stainless Steel
    0.63"Spring Plunger Driver
    Slotted
    34085A4900003382A160000
    3/8"-16
    0.048"0.188"2.55Steel0.63"Spring Plunger Driver
    Slotted
    84805A6900003382A160000
    3/8"-16
    0.048"0.188"51018-8 Stainless Steel
    0.63"Spring Plunger Driver
    Slotted
    34085A51000003382A160000
    3/8"-16
    0.048"0.188"510Steel0.63"Spring Plunger Driver
    Slotted
    84805A5900003382A160000
    3/8"-16
    0.048"0.188"62118-8 Stainless Steel
    0.63"Spring Plunger Driver
    Slotted
    34085A5200003382A160000
    3/8"-16
    0.048"0.188"621Steel0.63"Spring Plunger Driver
    Slotted
    84805A700003382A160000
    3/8"-16
    0.053"0.187"2.55Acetal
    0.63"Slotted
    84775A540000———0
    3/8"-16
    0.053"0.187"510Acetal
    0.63"Slotted
    84775A530000———0
    1/2"-13
    0.072"0.281"3618-8 Stainless Steel
    0.75"Spring Plunger Driver
    Slotted
    34085A5300003382A170000
    1/2"-13
    0.072"0.281"36Steel0.75"Spring Plunger Driver
    Slotted
    84805A7100003382A170000
    1/2"-13
    0.072"0.281"61218-8 Stainless Steel
    0.75"Spring Plunger Driver
    Slotted
    34085A5400003382A170000
    1/2"-13
    0.072"0.281"612Steel0.75"Spring Plunger Driver
    Slotted
    84805A6100003382A170000
    1/2"-13
    0.072"0.281"63018-8 Stainless Steel
    0.75"Spring Plunger Driver
    Slotted
    34085A100003382A170000
    1/2"-13
    0.072"0.281"630Steel0.75"Spring Plunger Driver
    Slotted
    84805A7200003382A170000
    5/8"-11
    0.096"0.375"4.5918-8 Stainless Steel
    0.98"Spring Plunger Driver
    Slotted
    34085A2000003382A1800000
    5/8"-11
    0.096"0.375"4.59Steel0.98"Spring Plunger Driver
    Slotted
    84805A7300003382A1800000
    5/8"-11
    0.096"0.375"75018-8 Stainless Steel
    0.98"Spring Plunger Driver
    Slotted
    34085A4000003382A1800000
    5/8"-11
    0.096"0.375"750Steel0.98"Spring Plunger Driver
    Slotted
    84805A7400003382A1800000
    5/8"-11
    0.096"0.375"91818-8 Stainless Steel
    0.98"Spring Plunger Driver
    Slotted
    34085A3000003382A1800000
    5/8"-11
    0.096"0.375"918Steel0.98"Spring Plunger Driver
    Slotted
    84805A6200003382A1800000
    M3 x 0.5 mm0.4 mm1.5 mm0.7118-8 Stainless Steel
    7 mmSpring Plunger Driver
    Slotted
    2277A650000———0
    M3 x 0.5 mm0.4 mm1.5 mm0.71Steel7 mmSpring Plunger Driver
    Slotted
    2191A250000———0
    M4 x 0.7 mm0.8 mm2.5 mm0.92.318-8 Stainless Steel
    9 mmSpring Plunger Driver
    Slotted
    2277A51000003382A120000
    M4 x 0.7 mm0.8 mm2.5 mm0.92.3Steel9 mmSpring Plunger Driver
    Slotted
    2191A1100003382A120000
    M5 x 0.8 mm0.9 mm3.5 mm1.83.218-8 Stainless Steel
    12 mmSpring Plunger Driver
    Slotted
    2277A6600003382A130000
    M5 x 0.8 mm0.9 mm3.5 mm1.83.2Steel12 mmSpring Plunger Driver
    Slotted
    2191A2600003382A130000
    M5 x 0.8 mm0.9 mm3.5 mm3.4518-8 Stainless Steel
    12 mmSpring Plunger Driver
    Slotted
    2277A6700003382A130000
    M5 x 0.8 mm0.9 mm3.5 mm3.45Steel12 mmSpring Plunger Driver
    Slotted
    2191A2700003382A130000
    M6 x 1 mm1 mm3.5 mm0.51.418-8 Stainless Steel
    14 mmSpring Plunger Driver
    Slotted
    2277A53000003382A140000
    M6 x 1 mm1 mm3.5 mm0.51.4Steel14 mmSpring Plunger Driver
    Slotted
    2191A1300003382A140000
    M6 x 1 mm1 mm3.5 mm22.918-8 Stainless Steel
    14 mmSpring Plunger Driver
    Slotted
    2277A52000003382A140000
    M6 x 1 mm1 mm3.5 mm22.9Steel14 mmSpring Plunger Driver
    Slotted
    2191A1200003382A140000
    M6 x 1 mm1 mm3.5 mm6.3918-8 Stainless Steel
    14 mmSpring Plunger Driver
    Slotted
    2277A54000003382A140000
    M6 x 1 mm1 mm3.5 mm6.39Steel14 mmSpring Plunger Driver
    Slotted
    2191A1400003382A140000
    M8 x 1.25 mm1.5 mm5 mm1.12.318-8 Stainless Steel
    16 mmSpring Plunger Driver
    Slotted
    2277A56000003382A150000
    M8 x 1.25 mm1.5 mm5 mm1.12.3Steel16 mmSpring Plunger Driver
    Slotted
    2191A16000003382A150000
    M8 x 1.25 mm1.5 mm5 mm3.46.718-8 Stainless Steel
    16 mmSpring Plunger Driver
    Slotted
    2277A55000003382A150000
    M8 x 1.25 mm1.5 mm5 mm3.46.7Steel16 mmSpring Plunger Driver
    Slotted
    2191A15000003382A150000
    M8 x 1.25 mm1.5 mm5 mm913.418-8 Stainless Steel
    16 mmSpring Plunger Driver
    Slotted
    2277A57000003382A150000
    M8 x 1.25 mm1.5 mm5 mm913.4Steel16 mmSpring Plunger Driver
    Slotted
    2191A17000003382A150000
    M10 x 1.5 mm2 mm6 mm1.83.418-8 Stainless Steel
    19 mmSpring Plunger Driver
    Slotted
    2277A59000003382A160000
    M10 x 1.5 mm2 mm6 mm1.83.4Steel19 mmSpring Plunger Driver
    Slotted
    2191A1900003382A160000
    M10 x 1.5 mm2 mm6 mm4.57.818-8 Stainless Steel
    19 mmSpring Plunger Driver
    Slotted
    2277A58000003382A160000
    M10 x 1.5 mm2 mm6 mm4.57.8Steel19 mmSpring Plunger Driver
    Slotted
    2191A18000003382A160000
    M10 x 1.5 mm2 mm6 mm13.42018-8 Stainless Steel
    19 mmSpring Plunger Driver
    Slotted
    2277A61000003382A160000
    M10 x 1.5 mm2 mm6 mm13.420Steel19 mmSpring Plunger Driver
    Slotted
    2191A21000003382A160000
    M12 x 1.75 mm2.5 mm8 mm2.34.518-8 Stainless Steel
    22 mmSpring Plunger Driver
    Slotted
    2277A63000003382A170000
    M12 x 1.75 mm2.5 mm8 mm2.34.5Steel22 mmSpring Plunger Driver
    Slotted
    2191A23000003382A170000
    M12 x 1.75 mm2.5 mm8 mm6.712.318-8 Stainless Steel
    22 mmSpring Plunger Driver
    Slotted
    2277A62000003382A170000
    M12 x 1.75 mm2.5 mm8 mm6.712.3Steel22 mmSpring Plunger Driver
    Slotted
    2191A22000003382A170000
    M12 x 1.75 mm2.5 mm8 mm16.825.718-8 Stainless Steel
    22 mmSpring Plunger Driver
    Slotted
    2277A64000003382A170000
    M12 x 1.75 mm2.5 mm8 mm16.825.7Steel22 mmSpring Plunger Driver
    Slotted
    2191A24000003382A170000
    M16 x 2 mm3.5 mm10 mm9.219.318-8 Stainless Steel
    24 mmSpring Plunger Driver
    Slotted
    2277A6800003382A1800000
    M16 x 2 mm3.5 mm10 mm9.219.3Steel24 mmSpring Plunger Driver
    Slotted
    2191A28000003382A1800000
    M16 x 2 mm3.5 mm10 mm15.33218-8 Stainless Steel
    24 mmSpring Plunger Driver
    Slotted
    2277A6900003382A1800000
    M16 x 2 mm3.5 mm10 mm15.332Steel24 mmSpring Plunger Driver
    Slotted
    2191A29000003382A1800000
     

    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
     

    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

    Weld-on-Mount Catches for Ball-Nose and Long-Nose Spring Plungers

    Image of Product. Front orientation. Spring Plunger Catches. Weld-on-Mount Catches for Ball-Nose and Long-Nose Spring Plungers.
    Weld these catches in place for a strong permanent hold. Use them as a stop for ball-nose and long-nose spring plungers. They fit noses of any length.
    Steel—Steel is strong and wear resistant.
    18-8 Stainless Steel—18-8 stainless steel is chemical resistant and may be mildly magnetic.
    Steel
    18-8
    Stainless Steel
    For Nose
    Dia.
    Each
    Each
    0.16"8473A210000008473A41000000
    0.24"8473A22000008473A4200000
    0.32"8473A23000008473A4300000
    0.38"8473A24000008473A4400000
    back to top