Root diameter of a thread is another name for

Main diameter

Major diameter

Minor diameter

Base diameter

Answer is:

Minor diameter

Explanation:

Root diameter of a thread is another name for minor diameter

Shoulder bolt

J - bolt

U - bolt

Carriage bolt

Answer is:

Explanation:

A bolt that is used to create a pivot point is called Shoulder bolt

Shoulder bolt

Carriage bolt

J - bolt

Hangar bolt

Answer is:

Explanation:

A bolt that has wood thread on one end and machine thread on the other end is called Hangar bolt

Square

Hexagonal

Round

Flat

Answer is:

Explanation:

The most common shape of nut is Hexagonal

It is semi-permanent fastener

It is headless

It is generally used to screw one object within another

It is unable to prevent relative motion between two rotating parts

Answer is:

Explanation: