Nuts & bolts

Nuts & bolts

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

Industry: Machine tools

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Nuts & bolts

zinc phosphate conversion coating

Machine tools; Nuts & bolts

A zinc phosphate conversion coating is frequently added to zinc electroplated parts, such as bolt threads, to improve corrosion resistance. This type of chemical conversion coating provides a ...

skidmore bolt tension calibrator

Machine tools; Nuts & bolts

The Skidmore-Wilhelm bolt tension calibrator is a hydraulic load cell used to determine the tension in a bolt or other threaded fastener. The tension in the bolt compresses fluid in a hydraulic ...

external load

Machine tools; Nuts & bolts

Forces exerted on a fastener as a result of an applied loading to the joint.

A general name given to spring washers, curved washers, Belleville washers and disc springs. This type of washer provides a relatively low stiffness (compared to the joint stiffness) and can be used ...

non-ferrous metal

Machine tools; Nuts & bolts

Any metal or alloy which contains no significant amount of iron, such as copper, brass, aluminum, etc.

bihexagon head

Machine tools; Nuts & bolts

A bolt or screw whose cross section of its head is in the shape of a 12 pointed star.

nut dilation

Machine tools; Nuts & bolts

Under load, the wedging action of the threads causes dilation of the nut resulting in an increase in the minor diameter of the nut, and reducing the effective shear areas of both the external and ...