Bolt Heads

Some articles on head, heads, bolt heads, bolts:

Darwin IV - List of Species - Animals
... Arctic Sedge Slider has the ability to retract its head deep into its warm body cavity ... When conditions are favorable again, its head reemerges again and it resumes its activities ... Like most of Darwin IV's animals, their pointed, spade-like heads contain no true jaws ...
Socket Wrench Types - Number of Points (shape)
... The vast majority of common nut and bolt heads are produced with the 6-point hexagonal gripping shape ... Square 4-point, octagonal 8-point, and 12-point bolts are used less frequently, typically for special applications or particular industries such as ... Nuts and bolt heads are also produced in 12-point shapes and various types of splines more common to aircraft and aerospace applications ...

Famous quotes containing the words heads and/or bolt:

    I shall speak of ... how melancholy and utopia preclude one another. How they fertilize one another.... Of the revulsion that follows one insight and precedes the next.... Of superabundance and surfeit. Of stasis in progress. And of myself, for whom melancholy and utopia are heads and tails of the same coin.
    Günther Grass (b. 1927)

    Good marriages are made in heaven. Or some such place.
    —Robert Bolt (1924–1995)