Allen key is used to tighten | Machine design viva question and answers
A. Cap screw with hexagonal head
B. Cap screw with fillister head
C. Cap screw with hexagonal socket head
D. Cap screw with flat head
Answer:C
Allen key is used to tighten | Machine design viva question and answers
A. Cap screw with hexagonal head B. Cap screw with fillister head C. Cap screw with hexagonal socket head D. Cap screw with flat head