Hexagon bolts are fasteners consisting of the head and the screw, the bolts are made of iron bolts and stainless steel bolts. Iron grade by 4.8 points bolts, 8.8 bolts. Stainless steel bolts are made of stainless steel SUS201 bolts, SUS304 bolts, SUS316 bolts.
Hexagon head bolts (partially threaded) Type C and hexagon head bolts (full thread) Class C, also known as hexagon head bolts (shredded) Hexagon head bolts, black iron screws. Commonly used standards can be found: SH3404, HG20613, HG20634 and so on.
 
Hexagon Bolts A class of fasteners consisting of a head and a screw (with an external thread) are required to be fitted with the nut for fastening the connection of two parts with through holes. This type of connection is bolted. If the nut is screwed off from the bolt, it is possible to separate the two parts, so the bolt connection is a detachable connection.