+ 12. on a =4-40= bolt, how many times does the thread wrap around
+ one inch of the body? 4 times? 40 times?
+ 1. how many times does the thread of a =4-40= bolt wrap around
+ two inches of the body? 8 times? 40 times? 80 times?
+ 13. what part of the screw does the screw driver go into?