Nuts & bolts

Nuts & bolts

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

Contributors in Nuts & bolts

Nuts & bolts

Localized plastic deformation which occurs in the vicinity of clamped fasteners or in the fastener threads. . Embedding is local plastic deformations that occur under the nut face, in the joint faces ...

crest

Machine tools; Nuts & bolts

Term applied to outermost tip of male thread, or the innermost tip of the female thread.

overtapping

Machine tools; Nuts & bolts

Tapping of a thread following a plating operation so that the thread tolerances comply within specification allowing the internal and external threads to assemble. It is normal practice to overtap ...

hot bolting

Machine tools; Nuts & bolts

This term is used for the completion of maintenance work on a bolted joint when the joint is under loading. This can involve the replacement of individual bolts. There are risks both to the joint ...

static friction

Machine tools; Nuts & bolts

Friction at rest; a force is required to initiate relative movement between two bodies - static friction is the force that resists such relative movement. Sometimes referred to as stiction.

tin/zinc alloy electroplating

Machine tools; Nuts & bolts

Tin/zinc alloy coatings (typically 70% tin and 30% zinc) are applied to threaded fasteners to provide a corrosion resistant coating. One of the advantages of such coatings is that bimetallic ...

heat tightening

Machine tools; Nuts & bolts

Heat tightening utilizes the thermal expansion characteristics of the bolt. The bolt is heated and expands: the nut is indexed (using the angle of turn method) and the system allowed to cool. As the ...