Bolt is a part of machine parts, with nuts cylindrical threaded fasteners.
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. Such as screw the nut on the bolt, and can make the two parts separately, so the bolt connection is a detachable connection.
According to the bolt head shape classification, can be divided into hexagon head, round head, square head, countersunk head etc.
Hex Bolt is the most commonly used. The normal use countersunk head in connection smooth surface after not protuberant place, because the countersunk head can be turned into parts. Round head can also be turned into parts. Square head tight force can be larger, but the size is very large.
|Standard||ANSI, ASTM,DIN, JIS, BS, ISO, GB, SH, AND HG etc|
|Package||wooden case, pallet or as customers’ requirement|
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