nstall with a hex key for more torque than slotted ball-nose spring plungers. They have a ball nose that rolls to minimize wear and allow parts to move in and out of position. Made from 440C stainless steel, the nose is hard, wear resistant, and mildly chemical resistant.
Steel bodies are strong and wear resistant. They have a black-oxide finish to resist corrosion in dry environments.
18-8 stainless steel bodies are chemical resistant and may be mildly magnetic.
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.
Nose
Nose Force, lbs.
Thread
Size Body Lg. Extended
Lg. Dia. Extended Compressed Drive
Size Choose a Locking Type Each
Black-Oxide Steel Body and 440C Stainless Steel Nose
6-40 0.35" 0.023" 0.078" 0.5 1 0.050"
Thread Locker,Without Thread Locker
5901A11 $7.40
8-32 0.445" 0.025" 0.094" 0.5 1.3 1/16"
Thread Locker,Without Thread Locker
5901A12 5.58
10-32 0.57" 0.025" 0.094" 1.5 3 5/64"
Thread Locker,Without Thread Locker
5901A13 5.71
1/4"-20 0.675" 0.035" 0.125" 3 7 5/64"
Thread Locker,Without Thread Locker
5901A14 5.38
5/16"-18 0.72" 0.04" 0.156" 4 9 3/32"
Thread Locker,Without Thread Locker
5901A15 5.55
3/8"-16 0.8" 0.048" 0.188" 5 10 5/32"
Thread Locker,Without Thread Locker
5901A16 5.71
1/2"-13 1.05" 0.072" 0.281" 6 12 7/32"
Thread Locker,Without Thread Locker
5901A17 6.62
5/8"-11 1.25" 0.096" 0.375" 9 18 1/4"
Thread Locker,Without Thread Locker
5901A18 7.97
18-8 Stainless Steel Body and 440C Stainless Steel Nose
6-40 0.35" 0.023" 0.078" 0.5 1 0.050"
Thread Locker,Without Thread Locker
5901A31 5.64
8-32 0.445" 0.025" 0.094" 0.5 1.3 1/16"
Thread Locker,Without Thread Locker
5901A32 6.56
10-32 0.57" 0.025" 0.094" 1.5 3 5/64"
Thread Locker,Without Thread Locker
5901A33 7.33
1/4"-20 0.675" 0.035" 0.125" 3 7 5/64"
Thread Locker,Without Thread Locker
5901A34 6.62
5/16"-18 0.72" 0.04" 0.156" 4 9 3/32"
Thread Locker,Without Thread Locker
5901A35 10.85
3/8"-16 0.8" 0.048" 0.188" 5 10 5/32"
Thread Locker,Without Thread Locker
5901A36 9.77
1/2"-13 1.05" 0.072" 0.281" 6 12 7/32"
Thread Locker,Without Thread Locker
5901A37 10.47
5/8"-11 1.25" 0.096" 0.375" 9 18 1/4"
Thread Locker,Without Thread Locker
5901A38 12.38
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