Nuts & bolts

Nuts & bolts

Engineering science related to nuts, bolts, threaded fasteners and tightening techniques.

Contributors in Nuts & bolts

Nuts & bolts

Coating of threaded fasteners with cadmium can provide the parts with excellent corrosion resistance. The appearance of the coating is bright silver or yellow if subsequently passivated. The friction ...

finished fastener

Machine tools; Nuts & bolts

A close tolerance fastener, with all surfaces finished to give a superior appearance.

effective diameter

Machine tools; Nuts & bolts

This is the diameter of an imaginary cylinder coaxial with the thread, which has equal metal and space widths. It is often referred to as pitch diameter. Sometimes referred to as the simple effective ...

thread crest

Machine tools; Nuts & bolts

The top part of the thread. For external threads, the crest is the region of the thread which is on it's outer surface, for internal threads it is the region which forms the inner diameter.