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Toggle bolts have wings that open inside a hollow wall, bracing against it to hold the fastener securely. [1] The wings, once fully opened, greatly expand the surface area making contact with the back of the hollow wall. This ultimately spreads out the weight of the secured item, increasing the weight that can be secured compared to a regular bolt.
The backplate, a plate, usually made from stainless steel, sometimes aluminium or carbon fibre composite, which is held against the diver's back by the harness, and to which the diver's primary cylinder or cylinders are attached. A harness, which attaches the system to the diver, and may support other accessories.
A wingnut, wing nut or butterfly nut is a type of nut with two large metal "wings", one on each side, so it can be easily tightened and loosened by hand without tools. A similar fastener with a male thread is known as a wing screw [ 1 ] [ 2 ] or a wing bolt .
They are usually made of low grade steel, have a slot or Phillips drive, and are used to join sheet metal parts using a hex or square nut. [12] plow bolt: plough bolt: A plow bolt is bolt similar to a carriage bolt, except the head is flat or concave, and the underside of the head is a cone designed to fit in a countersunk recess.
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.
Examples of objects that can be produced on a lathe include candlestick holders, crankshafts, camshafts, and bearing mounts. Lathes have four main components: the bed, the headstock, the carriage, and the tailstock. The bed is a precise & very strong base which all of the other components rest upon for alignment.