Slotted on both ends for installation with a screwdriver. With a nose that is longer than a ball-nose, these provide a large bearing surface to handle side loads.

Steel is strong and wear resistant. Zinc-plated steel bodies resist corrosion in wet environments. Black-oxide steel bodies resist corrosion in dry environments.

316 stainless steel is more corrosion resistant than 18-8 stainless steel and can be used in saltwater environments.

18-8 stainless steel is chemical resistant.

Brass is corrosion resistant in wet environments; brass noses are soft to minimize marring.

Plastic is chemical resistant and lightweight; acetal noses are extra soft to minimize marring soft surfaces such as aluminum.

Spring plungers without thread locker are for use in soft material such as aluminum, in extreme temperatures, and on parts requiring frequent assembly and removal.

Spring plungers with thread locker have a locking element that adds friction to resist loosening.

Extended nose force is the force required to begin to depress the nose. Compressed nose force is the force required to depress the nose flush with the body. When using a plunger as a detent or stop, a lighter nose force with a shallower hole releases more easily, while a heavier force with a deeper hole holds more securely.

3D CAD models availableFor technical drawings and 3-D models, click on a part number.

Inch

Nose

Nose Force, lbs.

Thread

Size Body Lg. Extended

Lg. Dia. Min.

Temp., °F Max.

Temp., °F Extended Compressed Choose a Locking Type Each

Zinc-Plated Steel Body and Steel Nose

8-32 0.437" 0.052" 0.07" __ __ 0.5 1.5

Thread Locker,Without Thread Locker

3126A76 $4.28

8-32 0.437" 0.052" 0.07" __ __ 1.5 4.8

Thread Locker,Without Thread Locker

3126A77 4.55

8-36 0.437" 0.052" 0.07" __ __ 0.5 1.5

Thread Locker,Without Thread Locker

3126A81 4.35

8-36 0.437" 0.052" 0.07" __ __ 1.5 4.8

Thread Locker,Without Thread Locker

3126A82 4.17

10-32 0.468" 0.065" 0.093" __ __ 0.8 2.5

Thread Locker,Without Thread Locker

3126A83 3.87

10-32 0.468" 0.065" 0.093" __ __ 1.8 6.3

Thread Locker,Without Thread Locker

3126A84 3.87

1/4"-20 0.531" 0.078" 0.119" __ __ 1 3.5

Thread Locker,Without Thread Locker

3126A85 3.70

1/4"-20 0.531" 0.078" 0.119" __ __ 3 10.5

Thread Locker,Without Thread Locker

3126A86 3.70

5/16"-18 0.562" 0.084" 0.135" __ __ 1.3 4

Thread Locker,Without Thread Locker

3126A87 4.28

5/16"-18 0.562" 0.084" 0.135" __ __ 3.8 15.5

Thread Locker,Without Thread Locker

3126A89 4.14

3/8"-16 0.625" 0.11" 0.186" __ __ 1.5 5

Thread Locker,Without Thread Locker

3126A91 3.84

3/8"-16 0.625" 0.11" 0.186" __ __ 4.5 18.5

Thread Locker,Without Thread Locker

3126A92 3.84

1/2"-13 0.75" 0.151" 0.248" __ __ 1.8 5.5

Thread Locker,Without Thread Locker

3126A93 8.36

1/2"-13 0.75" 0.151" 0.248" __ __ 5 28

Thread Locker,Without Thread Locker

3126A94 7.37

5/8"-11 1.062" 0.215" 0.31" __ __ 2 8.5

Thread Locker,Without Thread Locker

3126A95 8.97

5/8"-11 1.062" 0.215" 0.31" __ __ 7 50

Thread Locker,Without Thread Locker

3126A96 7.07

Zinc-Plated Steel Body and 18-8 Stainless Steel Nose

8-32 0.437" 0.052" 0.07" __ __ 0.5 1.5

Thread Locker,Without Thread Locker

8490A97 4.20

8-32 0.437" 0.052" 0.07" __ __ 1.5 4.8

Thread Locker,Without Thread Locker

8490A79 4.23

8-36 0.437" 0.052" 0.07" __ __ 0.5 1.5

Thread Locker,Without Thread Locker

8490A89 4.20

8-36 0.437" 0.052" 0.07" __ __ 1.5 4.8

Thread Locker,Without Thread Locker

8490A81 4.20

10-32 0.468" 0.065" 0.093" __ __ 0.8 2.5

Thread Locker,Without Thread Locker

8490A91 3.34

10-32 0.468" 0.065" 0.093" __ __ 1.8 6.3

Thread Locker,Without Thread Locker

8490A82 3.37

1/4"-20 0.531" 0.078" 0.119" __ __ 1 3.5

Thread Locker,Without Thread Locker

8490A92 3.34

1/4"-20 0.531" 0.078" 0.119" __ __ 3 10.5

Thread Locker,Without Thread Locker

8490A83 3.34

5/16"-18 0.562" 0.084" 0.135" __ __ 1.3 4

Thread Locker,Without Thread Locker

8490A93 3.63

5/16"-18 0.562" 0.084" 0.135" __ __ 3.8 15.5

Thread Locker,Without Thread Locker

8490A84 3.97

3/8"-16 0.625" 0.11" 0.186" __ __ 1.5 5

Thread Locker,Without Thread Locker

8490A94 4.29

3/8"-16 0.625" 0.11" 0.186" __ __ 4.5 18.5

Thread Locker,Without Thread Locker

8490A85 4.17

1/2"-13 0.75" 0.151" 0.248" __ __ 1.8 5.5

Thread Locker,Without Thread Locker

8490A95 7.86

1/2"-13 0.75" 0.151" 0.248" __ __ 5 28

Thread Locker,Without Thread Locker

8490A86 7.54

5/8"-11 1.062" 0.215" 0.31" __ __ 2 8.5

Thread Locker,Without Thread Locker

8490A96 8.65

5/8"-11 1.062" 0.215" 0.31" __ __ 7 50

Thread Locker,Without Thread Locker

8490A87 8.14

Zinc-Plated Steel Body and Acetal Plastic Nose

8-32 0.437" 0.052" 0.07" -40° 190° 0.5 1.5

Thread Locker,Without Thread Locker

8499A28 4.08

8-32 0.437" 0.052" 0.07" -40° 190° 1.5 4.8

Thread Locker,Without Thread Locker

8499A29 4.08

8-36 0.437" 0.052" 0.07" -40° 190° 0.5 1.5

Thread Locker,Without Thread Locker

8499A31 4.08

8-36 0.437" 0.052" 0.07" -40° 190° 1.5 4.8

Thread Locker,Without Thread Locker

8499A32 4.08

10-32 0.468" 0.065" 0.093" -40° 190° 0.8 2.5

Thread Locker,Without Thread Locker

8499A33 3.61

10-32 0.468" 0.065" 0.093" -40° 190° 1.8 6.3

Thread Locker,Without Thread Locker

8499A34 3.61

1/4"-20 0.531" 0.078" 0.119" -40° 190° 1 3.5

Thread Locker,Without Thread Locker

8499A35 3.61

1/4"-20 0.531" 0.078" 0.119" -40° 190° 3 10.5

Thread Locker,Without Thread Locker

8499A36 3.61

5/16"-18 0.562" 0.084" 0.135" -40° 190° 1.3 4

Thread Locker,Without Thread Locker

8499A37 3.78

5/16"-18 0.562" 0.084" 0.135" -40° 190° 3.8 15.5

Thread Locker,Without Thread Locker

8499A38 3.78

3/8"-16 0.625" 0.11" 0.186" -40° 190° 1.5 5

Thread Locker,Without Thread Locker

8499A39 3.78

3/8"-16 0.625" 0.11" 0.186" -40° 190° 4.5 18.5

Thread Locker,Without Thread Locker

8499A41 3.78

1/2"-13 0.75" 0.151" 0.248" -40° 190° 1.8 5.5

Thread Locker,Without Thread Locker

8499A42 5.81

1/2"-13 0.75" 0.151" 0.248" -40° 190° 5 28

Thread Locker,Without Thread Locker

8499A43 5.53

5/8"-11 1.062" 0.215" 0.31" -40° 190° 2 8.5

Thread Locker,Without Thread Locker

8499A44 8.25

5/8"-11 1.062" 0.215" 0.31" -40° 190° 7 50

Thread Locker,Without Thread Locker

8499A45 7.72

Black-Oxide Steel Body and Steel Nose

6-32 0.375" 0.036" 0.046" __ __ 0.5 1.5 Thread Locker 3126A69 6.98

8-32 0.437" 0.093" 0.07" __ __ 1 3.3

Thread Locker,Without Thread Locker

3126A211 5.58

8-32 0.5" 0.094" 0.07" __ __ 0.5 2

Thread Locker,Without Thread Locker

3126A78 6.98

8-32 0.5" 0.094" 0.07" __ __ 0.5 4

Thread Locker,Without Thread Locker

3126A79 6.98

8-36 0.437" 0.093" 0.07" __ __ 1 3.3

Thread Locker,Without Thread Locker

3126A221 7.28

10-32 0.469" 0.125" 0.093" __ __ 1.3 4.3

Thread Locker,Without Thread Locker

3126A231 5.66

1/4"-20 0.531" 0.187" 0.119" __ __ 2 7

Thread Locker,Without Thread Locker

3126A241 5.41

5/16"-18 0.563" 0.084" 0.135" __ __ 1.5 4 Thread Locker 3126A65 8.63

5/16"-18 0.563" 0.187" 0.135" __ __ 2 9

Thread Locker,Without Thread Locker

3126A251 5.51

3/8"-16 0.625" 0.187" 0.186" __ __ 3 12.5

Thread Locker,Without Thread Locker

3126A261 5.24

1/2"-13 0.75" 0.25" 0.248" __ __ 3.5 19

Thread Locker,Without Thread Locker

3126A271 5.65

5/8"-11 1.063" 0.312" 0.31" __ __ 4.5 33.5

Thread Locker,Without Thread Locker

3126A281 8.10

Black-Oxide Steel Body and Acetal Plastic Nose

6-32 0.375" 0.036" 0.046" Not Rated 200° 0.5 1.5 Thread Locker 8499A52 6.71

8-32 0.437" 0.093" 0.07" -30° 190° 1 3.3

Thread Locker,Without Thread Locker

8499A811 6.16

8-32 0.5" 0.094" 0.07" Not Rated Not Rated 0.5 2

Thread Locker,Without Thread Locker

8499A49 6.97

8-32 0.5" 0.094" 0.07" Not Rated Not Rated 0.5 4

Thread Locker,Without Thread Locker

8499A51 6.64

8-36 0.437" 0.093" 0.07" -30° 190° 1 3.3

Thread Locker,Without Thread Locker

8499A821 8.17

10-32 0.469" 0.125" 0.093" -30° 190° 1.3 4.3

Thread Locker,Without Thread Locker

8499A831 6.04

1/4"-20 0.531" 0.187" 0.119" -30° 190° 2 7

Thread Locker,Without Thread Locker

8499A841 5.76

5/16"-18 0.563" 0.084" 0.135" Not Rated 200° 1.5 4 Thread Locker 8499A53 8.35

5/16"-18 0.563" 0.187" 0.135" -30° 190° 2 9

Thread Locker,Without Thread Locker

8499A851 6.25

3/8"-16 0.625" 0.187" 0.186" -30° 190° 3 12.5

Thread Locker,Without Thread Locker

8499A861 5.36

1/2"-13 0.75" 0.25" 0.248" -30° 190° 3.5 19

Thread Locker,Without Thread Locker

8499A871 6.21

5/8"-11 1.063" 0.312" 0.31" -30° 190° 4.5 33.5

Thread Locker,Without Thread Locker

8499A881 9.36

316 Stainless Steel Body and 316 Stainless Steel Nose

8-32 0.437" 0.052" 0.07" __ __ 1.5 4.7

Thread Locker,Without Thread Locker

8688A31 22.05

8-32 0.5" 0.094" 0.07" __ __ 0.5 2

Thread Locker,Without Thread Locker

8688A32 22.05

10-32 0.469" 0.065" 0.09" __ __ 1.7 6.2

Thread Locker,Without Thread Locker

8688A33 17.16

1/4"-20 0.531" 0.078" 0.119" __ __ 3 10.5

Thread Locker,Without Thread Locker

8688A34 17.16

5/16"-18 0.563" 0.084" 0.135" __ __ 1.5 4

Thread Locker,Without Thread Locker

8688A35 17.42

3/8"-16 0.625" 0.11" 0.186" __ __ 4.5 18.5

Thread Locker,Without Thread Locker

8688A36 21.74

1/2"-13 0.75" 0.151" 0.248" __ __ 5 28.5

Thread Locker,Without Thread Locker

8688A37 27.77

5/8"-11 1.062" 0.215" 0.31" __ __ 7 50

Thread Locker,Without Thread Locker

8688A39 32.68

18-8 Stainless Steel Body and 18-8 Stainless Steel Nose

8-32 0.437" 0.052" 0.07" __ __ 0.5 1.5

Thread Locker,Without Thread Locker

84985A41 5.11

8-32 0.437" 0.052" 0.07" __ __ 1.5 4.8

Thread Locker,Without Thread Locker

84985A43 5.11

8-32 0.437" 0.093" 0.07" __ __ 1 3.3

Thread Locker,Without Thread Locker

84985A11 6.75

8-36 0.437" 0.052" 0.07" __ __ 0.5 1.5

Thread Locker,Without Thread Locker

84985A45 5.49

8-36 0.437" 0.052" 0.07" __ __ 1.5 4.8

Thread Locker,Without Thread Locker

84985A47 5.43

8-36 0.437" 0.093" 0.07" __ __ 1 3.3

Thread Locker,Without Thread Locker

84985A12 5.38

10-32 0.468" 0.065" 0.093" __ __ 0.8 2.5

Thread Locker,Without Thread Locker

84985A49 4.77

10-32 0.468" 0.065" 0.093" __ __ 1.8 6.3

Thread Locker,Without Thread Locker

84985A52 4.77

10-32 0.469" 0.125" 0.093" __ __ 1.3 4.3

Thread Locker,Without Thread Locker

84985A13 6.83

1/4"-20 0.531" 0.078" 0.119" __ __ 1 3.5

Thread Locker,Without Thread Locker

84985A54 4.67

1/4"-20 0.531" 0.078" 0.119" __ __ 3 10.5

Thread Locker,Without Thread Locker

84985A56 4.67

1/4"-20 0.531" 0.187" 0.119" __ __ 2 7

Thread Locker,Without Thread Locker

84985A14 7.11

5/16"-18 0.562" 0.084" 0.135" __ __ 1.3 4

Thread Locker,Without Thread Locker

84985A58 5.21

5/16"-18 0.562" 0.084" 0.135" __ __ 3.8 15.5

Thread Locker,Without Thread Locker

84985A61 5.18

5/16"-18 0.563" 0.187" 0.135" __ __ 2 9

Thread Locker,Without Thread Locker

84985A15 6.74

3/8"-16 0.625" 0.11" 0.186" __ __ 1.5 5

Thread Locker,Without Thread Locker

84985A63 5.53

3/8"-16 0.625" 0.11" 0.186" __ __ 4.5 18.5

Thread Locker,Without Thread Locker

84985A65 5.53

3/8"-16 0.625" 0.187" 0.186" __ __ 3 12.5

Thread Locker,Without Thread Locker

84985A16 8.32

1/2"-13 0.75" 0.151" 0.248" __ __ 1.8 5.5

Thread Locker,Without Thread Locker

84985A83 7.93

1/2"-13 0.75" 0.151" 0.248" __ __ 5 28

Thread Locker,Without Thread Locker

84985A85 8.61

1/2"-13 0.75" 0.25" 0.248" __ __ 3.5 19

Thread Locker,Without Thread Locker

84985A17 8.63

5/8"-11 1.062" 0.215" 0.31" __ __ 2 8.5

Thread Locker,Without Thread Locker

84985A87 10.44

5/8"-11 1.062" 0.215" 0.31" __ __ 7 50

Thread Locker,Without Thread Locker

84985A89 10.31

18-8 Stainless Steel Body and Acetal Plastic Nose

8-32 0.437" 0.052" 0.07" -40° 190° 0.5 1.5

Thread Locker,Without Thread Locker

84765A11 5.43

8-32 0.437" 0.052" 0.07" -40° 190° 1.5 4.8

Thread Locker,Without Thread Locker

84765A14 5.43

8-32 0.437" 0.093" 0.07" -30° 190° 1 3.3

Thread Locker,Without Thread Locker

84765A311 6.41

8-36 0.437" 0.052" 0.07" -40° 190° 0.5 1.5

Thread Locker,Without Thread Locker

84765A17 5.43

8-36 0.437" 0.052" 0.07" -40° 190° 1.5 4.8

Thread Locker,Without Thread Locker

84765A81 5.43

8-36 0.437" 0.093" 0.07" -30° 190° 1 3.3

Thread Locker,Without Thread Locker

84765A321 6.51

10-32 0.468" 0.065" 0.093" -40° 190° 0.8 2.5

Thread Locker,Without Thread Locker

84765A84 5.12

10-32 0.468" 0.065" 0.093" -40° 190° 1.8 6.3

Thread Locker,Without Thread Locker

84765A87 5.12

10-32 0.469" 0.125" 0.093" -30° 190° 1.3 4.3

Thread Locker,Without Thread Locker

84765A331 6.90

1/4"-20 0.531" 0.078" 0.119" -40° 190° 1 3.5

Thread Locker,Without Thread Locker

84765A91 5.00

1/4"-20 0.531" 0.078" 0.119" -40° 190° 3 10.5

Thread Locker,Without Thread Locker

84765A94 5.00

1/4"-20 0.531" 0.187" 0.119" -30° 190° 2 7

Thread Locker,Without Thread Locker

84765A341 6.76

5/16"-18 0.562" 0.084" 0.135" -40° 190° 1.3 4

Thread Locker,Without Thread Locker

84765A97 5.00

5/16"-18 0.562" 0.084" 0.135" -40° 190° 3.8 15.5

Thread Locker,Without Thread Locker

84765A101 5.00

5/16"-18 0.563" 0.187" 0.135" -30° 190° 2 9

Thread Locker,Without Thread Locker

84765A351 6.84

3/8"-16 0.625" 0.11" 0.186" -40° 190° 1.5 5

Thread Locker,Without Thread Locker

84765A104 5.88

3/8"-16 0.625" 0.11" 0.186" -40° 190° 4.5 18.5

Thread Locker,Without Thread Locker

84765A107 5.88

3/8"-16 0.625" 0.187" 0.186" -30° 190° 3 12.5

Thread Locker,Without Thread Locker

84765A361 7.53

1/2"-13 0.75" 0.151" 0.248" -40° 190° 1.8 5.5

Thread Locker,Without Thread Locker

84765A111 6.29

1/2"-13 0.75" 0.151" 0.248" -40° 190° 5 28

Thread Locker,Without Thread Locker

84765A114 6.22

1/2"-13 0.75" 0.25" 0.248" -30° 190° 3.5 19

Thread Locker,Without Thread Locker

84765A371 8.55

5/8"-11 1.062" 0.215" 0.31" -40° 190° 2 8.5

Thread Locker,Without Thread Locker

84765A117 8.45

5/8"-11 1.062" 0.215" 0.31" -40° 190° 7 50

Thread Locker,Without Thread Locker

84765A121 7.90

Brass Body and Brass Nose

8-32 0.437" 0.052" 0.07" __ __ 1.5 4.7

Thread Locker,Without Thread Locker

8689A31 15.00

8-32 0.5" 0.094" 0.07" __ __ 0.5 2

Thread Locker,Without Thread Locker

8689A32 15.00

10-32 0.469" 0.065" 0.09" __ __ 1.7 6.2

Thread Locker,Without Thread Locker

8689A33 14.98

1/4"-20 0.531" 0.078" 0.119" __ __ 3 10.5

Thread Locker,Without Thread Locker

8689A34 14.98

5/16"-18 0.563" 0.084" 0.135" __ __ 1.5 4

Thread Locker,Without Thread Locker

8689A35 14.96

3/8"-16 0.625" 0.11" 0.186" __ __ 4.5 18.5

Thread Locker,Without Thread Locker

8689A36 14.79

1/2"-13 0.75" 0.151" 0.248" __ __ 5 28.5

Thread Locker,Without Thread Locker

8689A37 19.45

5/8"-11 1.062" 0.215" 0.31" __ __ 7 50

Thread Locker,Without Thread Locker

8689A39 22.24

Metric

Thread

Nose

Nose Force, lbs.

Size Pitch,

mm Body

Lg., mm Extended

Lg., mm Dia.,

mm Temp.

Range, °F Extended Compressed Choose a Locking Type Each

Steel Body and Acetal Plastic Nose

M10 1.5 22 3 4 -40° to 190° 5.6 15.7

Thread Locker,Without Thread Locker

8281A22 $6.60

M12 1.75 28 4 6 -40° to 190° 2.3 12.3

Thread Locker,Without Thread Locker

8281A28 6.38