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A split pin, also known as a cotter pin, or cotter key in the US, [1] is a metal fastener with two tines that are bent during installation, similar to a staple or rivet. Typically made of thick wire with a half-circular cross section, split pins come in multiple sizes and types.
The clevis is a U-shaped piece that has holes at the end of the prongs to accept the clevis pin. The clevis pin is similar to a bolt, but is either partially threaded or unthreaded with a cross-hole for a split pin. A tang is a piece that is sometimes fitted in the space within the clevis and is held in place by the clevis pin.
A two-pinned lewis consists of two pins, linked by a short chain. The pins are inserted into opposing holes that are drilled into the top of the stone at about 15° from vertical. It operates by gripping the stone (like two fingers lifting a tenpin bowling ball) as the weight of the stone is taken up by a crane or winch.
This lends split pins to use in mobile paper and cardboard models, and they are often used as modern scrapbooking embellishments. In the film industry, brass fasteners are an industry standard in binding screenplays. [citation needed] It is shaped somewhat like a nail with a round head and flat, split length.
Cotter pin may refer to: In U.S. usage: Split pin, a metal fastener with two tines that are bent during installation used to fasten metal together, like with a staple or rivet; Hairpin cotter pin, more commonly known as an "R-clip" Circle cotter, a ring-shaped cotter pin; In British usage:
Screwfix Direct Limited, trading as Screwfix, is a retailer of trade tools, accessories and hardware products based in the United Kingdom. [6] Founded in 1979 as the Woodscrew Supply Company, the company was acquired in July 1999 by Kingfisher plc , which also owns B&Q , and is listed on the London Stock Exchange .
One of the pins is adjustable, attached to a sliding fence, [5] so that mortises of different widths can be marked. [ 2 ] Some mortise gauges are designed with one retractable spur, so that they can be used as marking gauges as well; [ 6 ] however, because the mortise gauge is an expensive and high precision tool, many carpenters prefer to have ...
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