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Green vintage buttons. Button collecting is the collecting of various types of clothing buttons.. Button collecting varies widely. In its most informal manifestation, a button collection may simply be the household button container, where buttons are stored for future use on clothing or for crafts.
The kingpin (also king-pin, king pin and k pin) [1] [2] is the main pivot in the steering mechanism of a car or other vehicle. The term is also used to refer to part of a fifth wheel coupling apparatus for a semi and its trailer or other load.
A pin-back button or pinback button, pin button, button badge, or simply pin-back or badge, is a button or badge that can be temporarily fastened to the surface of a garment using a safety pin, or a pin formed from wire, a clutch or other mechanism. This fastening mechanism is anchored to the back side of a button-shaped metal disk, either flat ...
There are two main types of clevis pins: threaded and unthreaded. Unthreaded clevis pins have a domed head at one end and a cross-hole at the other end. A cotter pin (US usage) or split pin is used to keep the clevis pin in place. Threaded clevis pins have a partially threaded shank on one end and a formed head on the other.
Button shanks may be made from a separate piece of the same or a different substance as the button itself, and added to the back of the button, or be carved or moulded directly onto the back of the button, in which latter case the button is referred to by collectors as having a 'self-shank'.
Cross-section of a connecting rod, showing strap (S), gib (G), and cotter pin (C) Another view, with scale, of bicycle crank cotter. A cotter is a pin or wedge with a flat bearing surface passing through a hole to fix parts tightly together. In British usage cotter pin has the same meaning, [1] but in the U.S. it means a split pin.
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A car hub showing a castellated nut cover and split pin (near center) Split pins are frequently used to secure other fasteners, e.g. clevis pins, or to secure a castellated nut, [6] or, infrequently, as a low-tech shear pin. Split pins are cheaper but less reusable than linchpins, and provide less strength but easier to install/remove than ...