The Screw Thread Systems

Which units will metric use for bolt sizes?

• thread count and colour

• MM and thread pitch

• length and width

• KM and MM

In most cases the nut material will be the same as the bolt?

• True

• False

When describing screw threads, the distance from a point on one thread to a corresponding point on the next thread is called the ____.

• crest

• key

• pitch

• root

True or False? Inch-based and metric threads are interchangeable.

• True

• False

Which of part has internal thread

• bolt

• nut

• head of bolt

• none of them

Name of part 2 is____________

Name of part 1 is ___________

• Major diameter

• Pitch

• Root

• Crest

Name of part 3 is ___________

• Pitch

• Root

• Major diameter

• Crest

The difference between bolt 1 and bolt 2 is ___________

• Bolt 1 has Coarse thread and Bolt 2 has Fine Threads

• Bolt 2 has Coarse thread and Bolt 1 has Fine Threads

• both of them have Coarse Threads

• both of them have Fine Threads

Which of part has external thread

• bolt

• nut

• head of bolt

• none of them