Nuts & bolts

Nuts & bolts

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

Contributors in Nuts & bolts

Nuts & bolts

UNC is a thread form with a 60 degree flank angle rounded roots and flat crests. For a given diameter it has a larger thread pitch than an equivalent diameter UNF thread. The unified thread is based ...

sems

Machine tools; Nuts & bolts

A screw and washer assembly. A screw or bolt which has a captive washer. The washer is frequently loose on the plain shank of the fastener, the shank diameter being equal to the effective diameter of ...

octagon head

Machine tools; Nuts & bolts

A bolt or screw whose head cross section is a regular polygon with 8 sides.

hardening

Machine tools; Nuts & bolts

Heat treating of metals to a desired temperature, not to exceed the critical range, for a given time and then cooling the metal rapidly.

prying

Machine tools; Nuts & bolts

The amplification of an external force acting on a bolt by a lever action which can occur when that force is an eccentric tensile load.

helical spring washer

Machine tools; Nuts & bolts

A split type of spring washer whose purpose is to prevent self loosening of the nut or the bolt. The idea or principle behind the helical spring washer is for one end of the tang of the washer to ...

set screw

Machine tools; Nuts & bolts

A set screw is a threaded fastener that is typically used to hold a sleeve, collar or gear on a shaft to prevent relative motion. It is a threaded member that normally does not have a head. Unlike ...