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A plate nut, also known as a nut plate, anchor nut or anchor plate, is a stamped sheet metal nut that is usually riveted to a workpiece. They have a long tube that is internally threaded and a plate with two clearance holes for rivets. The most popular versions have two lugs and they exist as fixed anchor nuts [1] and as floating anchor nuts. [2]
The theoretical basis of the box girder was largely the work of the engineer Sir William Fairbairn, with the aid of the mathematician Eaton Hodgkinson, around 1830.They sought to design for the most efficient beam possible in the new material of riveted wrought iron plates.
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 ...
Solid rivets are one of the oldest and most reliable types of fasteners, having been found in archaeological findings dating back to the Bronze Age.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.
The gusset plate is welded to a beam, and then two or three columns, beams, or truss chord are connected to the other side of the gusset plate through bolts or rivets or welds. [3] A uniform force bracing connection connects a beam, column, and one other member. The gusset plate is bolted to the column and welded to the beam.
A swage nut or self-clinching nut is a type of nut or threaded insert that is used on sheet metal. It permanently anchors itself to the sheet metal by swaging the surrounding material. Generally, the swage nut is made of a hard metal such as stainless steel , which is inserted into a pre-drilled hole in a softer ductile material such as aluminum .