Introduction to bolts,screws and studs

Bolts,screws and studs are used extensively in the manufacturing industry.Although similar in appearance,however,each item has its own unique purpose and characteristics.

BOLT:

Bolt and nut picture

An externally threaded fastener,designed for insertion through holes in assembled parts is called a bolt.It is usually intended to be used along a nut.

The rod with threads and a head is a bolt,and alongside it is a nut.

SCREW:

Screw picture

An externally threaded fastener capable of being inserted into the holes inside assembled parts  of mating with a preformed internal thread or forming.It’s own thread is called a screw.It has an ability of being tightened and released by torquing the head.A screw has the space on it’s head to supply torque.

STUD:

Stubs picture

A metal rod or shaft with threads on both sides is called a stud.Usually the rod is long,but depending upon the requirement the size can be changed.A rod with threads on both sides.