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Rivet diameters are commonly measured in 1 ⁄ 32-inch increments [18] and their lengths in 1 ⁄ 16-inch increments, expressed as "dash numbers" at the end of the rivet identification number. A "dash 3 dash 4" (XXXXXX-3-4) designation indicates a 3 ⁄ 32 -inch diameter and 4 ⁄ 16 -inch (or 1 ⁄ 4 -inch) length.
Typical rivet nut Sectional view Sectional view, with bolt inserted. A rivet nut, also known as a blind rivet nut, or rivnut, [1] is a one-piece internally threaded and counterbored tubular rivet that can be anchored entirely from one side. It is a kind of threaded insert. There are two types: one is designed to form a bulge on the back side of ...
A rivet gun, also known as a rivet hammer or a pneumatic hammer, [1] is a type of tool used to drive rivets. The rivet gun is used on rivet's factory head (the head present before riveting takes place), and a bucking bar is used to support the tail of the rivet.
Cleco (Cleko) fasteners on an aircraft wing. A cleco, also spelled generically cleko, is a temporary fastener developed by the Cleveland Pneumatic Tool Company. [1] Widely used in the manufacture and repair of aluminum-skinned aircraft, it is used to temporarily fasten sheets of material together, or to hold parts such as stiffeners, frames etc together, before they are permanently joined.
It was founded as the American Institute of Bolt, Nut and Rivet Manufacturers in 1931 and changed its name to the IFI in 1949. [2] Among their publications is the frequently cited IFI Fastener Technology Handbook , a reference frequently used as a design guide by mechanical engineers , machinists , and others involved in the production of high ...
The WWII M38 Hungarian steel helmet is nearly identical to the German M1935. Both have almost the same shape, riveted ventilation holes, and the classic rolled edge. Differences include somewhat rougher Hungarian finishing, a different liner and different rivets position – the split pins are situated behind the ventilation holes. A square ...