Bolt is a cylindrical with nut threaded fasteners, mechanical parts. By the head and the screw (with external thread of the cylinder) of two parts of fasteners, to cooperate with nut, used for fastening the two parts with hole. This kind of connection form according to bolt connection. This can be very simple explanation how do the toggle bolts work. Such as screw the nut on the bolt, and can make the two parts separately, so the bolt connection is a detachable connection. In the bolt, u-bolt bolt is a kind of use more widely. U-bolt English name for U - bolt, are standard parts, the shape of U so also known as U bolt, two head thread can be combined with nuts, mainly used in the fixed tube such as pipes or flake content such as automobile plate spring, because of the way its fixed objects, like a person is riding a horse is called u-bolt. Below is explained how do the toggle bolts work by the type of bolt.
Bolt according to the performance into 3.6, 4.8, 5.6, 5.8, 8.8, 9.8, 10.9, 12.9, eight grades, of which more than 8.8 (8.8) bolt is made of low carbon alloy steel and medium carbon steel and the heat treatment (quenching + tempering), known as the high strength bolt, 8.8 the following (not including 8.8) known as ordinary bolts. Ordinary bolt in accordance with the production of precision can be divided into three grade A, B, C, A, B grade for refined bolt, class C for unfinished bolts. For connecting bolts for steel structure, except where noted, usually for ordinary crude C grade bolts. (1) A and B grade bolts bolt rod composed of lathe processing, surface is smooth, precise size, their level of material properties with A magnitude of 8.8, manufacture installation is complex, the price is higher, rarely used; (2) C grade bolts made with raw round steel, the size is not accurate, the material performance rating of 4.6 or 4.8 on the Richter scale are unlikely. Shear connection deformation is large, but convenient installation, low production cost, more for temporary fixed tensile connection or installation. Bolt with nut is necessary, understand the classification and characteristics of the bolt, also can understand how do the toggle bolts work.