The bolt which is used where the head of a bolt must not project above the surface of the connected piece is ____________
(a) Stud-bolt
(b) Tap-bolt or cap screw
(c) T-headed bolt
(d) Countersunk-headed bolt
This question was posed to me by my college professor while I was bunking the class.
My enquiry is from Bolts in section Screw Threads & Screwed Fastening of Engineering Drawing