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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.
Prior to landing, the right main landing gear failed to lock and the crew circled for an hour while trying to fix the problem then preparing for an emergency landing. After the aircraft touched down, the right landing gear collapsed, the right wing hit the ground, and a fire broke out.
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 .
The presence of safety wiring may also serve to indicate that the fasteners have been properly tightened. Safety wire is available in a variety of gauges and materials, depending on the application. In aircraft and racing applications, stainless steel wire is used, such as in 0.8 mm (0.032 in) diameter. Typically, the wire is threaded through a ...
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 backplate and wing combination is a modular form of scuba harness and back mounted buoyancy compensator used by scuba divers to support the diving cylinder and buoyancy compensator bladder on the diver's back. It also provides attachment points for accessory equipment such as auxiliary scuba sets for decompression or bailout, lights ...