A 5/16-in bolt with national fine threads will have:
A) 18 threads per inch. B) 16 threads per inch.
C) 24 threads per inch. D) 20 threads per inch.
Question 2
Which type of head works well for driving with a drill and magnetic nut driver?
A) Countersunk head with straight slot B) Round head with straight slot
C) Hex head D) Pan head with phillips slot