More about Pins

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Pins are fasteners used to connect two parts while allowing a certain amount of movement at the joint. Pins also refer to connectors for a variety of electronic devices. From a mechanical standpoint, pins can be made from a full compliment of materials, such as metal, plastic, wood or ceramic, in an extensive assortment of designs. Generally, those used as connectors in electronic devices are made from a conductive metal.

Because of the wide range of uses for which pins are employed, they are available in an incredible variety of styles. Types of pins include dowel, safety, cotter, clevis and quick release pins, plus hundreds of others. Each pin design is further segmented into different categories; for example, dowel pins, which are straight pins used for various furniture and construction joining applications, are available in standard, knurled and multi-groove designs, among others. Multi-groove dowel pins are regularly included in furniture home-assembly kits as the fasteners for linking different panels.

Pins range from simple escutcheon and push pins to more complex push-button and adjustable pins. Simpler designs involve at least a straight shank or shaft, which can be smooth, threaded, cut, grooved or tapered in numerous styles; escutcheon and push pins also include a head. More expensive and complex designs involve multiple components, such as springs, hollow shafts and different wire forms. They can include numerous parallel and annular grooves and ring fittings, as well as different locking and handling attachments.

Important measurements for pins are length and large and small end diameter. For pins with additional features, other specifications are required, including thread class, inside clearance (in the case of safety pins), head size, handle width and barrel diameter. The type of pin, as well as the necessary application, will determine the additional specifications that a manufacturer or supplier should provide.