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Drawing of round head rivets, 1898 A typical technical drawing of a universal head solid rivet Riveters work on the Liberty ship SS John W. Brown (December 2014).. Rivet holes have been found in Egyptian spearheads dating back to the Naqada culture of between 4400 and 3000 B.C. Archeologists have also uncovered many Bronze Age swords and daggers with rivet holes where the handles would have been.
Metal snap fasteners, spring clips, and other snap-type connectors are still in broad use today. With the development of new flexible yet springy materials, such as molded plastic, and new manufacturing processes, many new variations in these types of connectors have been invented, and are commonly called snap-fits.
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 ...
Hex head fasteners: Known for their high torque capacity, hex head fasteners are easily driven with a spanner or wrench, ideal for heavy-duty applications. Square head fasteners: Offering increased wrenching area and reduced risk of rounding off, square head fasteners are used in high torque applications.
TIME-SERT insert. A threaded insert, also known as a threaded bushing, is a fastener element that is inserted into an object to add a threaded hole. [1] They may be used to repair a stripped threaded hole, provide a durable threaded hole in a soft material, place a thread on a material too thin to accept it, mold or cast threads into a work piece thereby eliminating a machining operation, or ...
Hook-and-eye fasteners have been common for centuries, but what was new about hook-and-loop fasteners was the miniaturisation of the hooks and eyes. Shrinking the hooks led to the two other important differences. First, instead of a single-file line of hooks, hook-and-loop fasteners have a two-dimensional surface. [7]