Torque, Tap and Die

The torque bolt

pitch count thread size of 14

7/16 inch drill bit size

grade 12 bolt

24 pitch count thread size

5/16 inch drill bit

grade 5 bolt

28 pitch count thread size

1/4 inch drill bit size

20240404_111523.mp4

5/16 bit cut

20240404_114020.mp4

7/16 bit cut

Torquing

Math for the Torque

Final Product

measuring the threads

we used 1/4, 5/16, and 7/16

thread pitch sizes are 24,20 and 14

the marks we used are

5/16, 7/16, and 1/4

Tapping the Left hole

7/16 tap

Taping the Right hole

5/16 tap

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