Metal knurled knob retractable plungers are used in machining applications with limited space as positioners, loading pins, and indexing devices. Easy to grab metal knob allows quick actuation and locks out in fully retracted position to allow adjustment of the work piece. To lock, pull the metal knob back and turn 90°. To release, turn 90° once more and allow pin to engage in perforated holes. Locking patch available upon request.

For quantities less than 100 pieces, please visit our distributors’ website by clicking link below.

Link to http://www.grainger.com  

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Item #

End Force Initial/Lbs.

End Force Final/Lbs.

Thread A

B

C

D

E

F

G

10-32 Knurled Knob Retractable Plunger Pins N/A 0.5 N/A 3.0 N/A 10-32 N/A 0.400 in N/A 0.094 in N/A 0.104 in N/A 0.380" N/A 0.250" N/A 0.190"
1/4-20 Knurled Knob Retractable Plunger Pins N/A 1.0 N/A 4.0 N/A 1/4-20 N/A 0.50 in N/A 0.125 in N/A 0.123 in N/A 0.500" N/A 0.313" N/A 0.190"
5/16-18 Knurled Knob Retractable Plunger Pin N/A 1.0 N/A 6.0 N/A 5/16-18 N/A 0.625 in N/A 0.188 in N/A 0.154 in N/A 0.630" N/A 0.375" N/A 0.250"
3/8-16 Knurled Knob Retractable Plunger Pin N/A 1.0 N/A 8.0 N/A 3/8-16 N/A 0.75 in N/A 0.218 in N/A 0.185 in N/A 0.750" N/A 0.500" N/A 0.310"
1/2-13 Knurled Knob Retractable Plunger Pin N/A 1.0 N/A 10.0 N/A 1/2-13 N/A 0.875 in N/A 0.25 in N/A 0.248 in N/A 1.000" N/A 0.625" N/A 0.380"
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