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| General An aircraft made of the best materials and strongest parts is of no value unless those parts are firmly held together. Rivets and special-purpose fasteners are the primary hardware used for this on Army aircraft. Both are used to hold two or more metal sheets, plates, or formed pieces of material together. Heads are formed on one end of the rivet and special-purpose fastener when manufactured. Special-purpose fasteners are used where high strength or a special application of a fastener is required. The rivet is smooth-shanked; its tip, opposite the head, is reshaped upon use to take the place of a nut. The shank of the rivet is placed through matched (aligned) holes in two or more pieces of material, and the tip is then flattened to form a second head that clamps the pieces together. The second head, formed either by hand or by pneumatic equipment, is called a shop head. The shop head works in the same manner as a nut on a bolt. This section discusses the variety of rivets and special-purpose fasteners in general use in Army aviation.
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| Curriculum design: David L. Heiserman Publisher: SweetHaven Publishing Services |
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