Nuts & bolts

Nuts & bolts

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

Industry: Machine tools

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Nuts & bolts

virtual effective diameter

Machine tools; Nuts & bolts

The effective diameter of a thread but allowing for errors in pitch and flank angles.

Creep is deformation with time when a part is subjected to constant stress. Metals creep can occur at elevated temperature however with gasket materials it can occur at normal ambient temperatures. ...

socket head cap screw

Machine tools; Nuts & bolts

A screw with a round head, usually with a hexagon indentation in the head for tightening purposes. Used on machine parts and is typically made from high strength steel (grade 12.9 in metric).

plow bolt

Machine tools; Nuts & bolts

A type of fastener that is used for making mechanical connections that require a flush surface at the location where the bolt head protrudes.

pitch diameter

Machine tools; Nuts & bolts

On a machine screw thread, the diameter measured at the point where the width of the groove equals the width of the thread.

direct tension indicators

Machine tools; Nuts & bolts

Direct Tension Indicators (DTI's) is a term sometimes used to describe load indicating washers. Projections on the face of the washer (usually on the face abuting the bolt head or nut) that deform ...