Internal Hexagon Bolts are divided into cylinder head hexagon socket head bolts, which is the most commonly used one. There are many kinds of hexagon head bolts. According to the material, they are divided into iron bolts, carbon steel bolts and stainless steel bolts.
Stainless steel hexagon bolts also have stainless steel SUS304 and SUS202 and other materials. This is also called pan head hexagon bolt. Countersunk head hexagon bolt, the head is flat, the inside is hexagon.
There is also a kind of special national standard, called headless hexagon bolt. we often call the machine screw, stop screw, set screw. This is the general name of headless hexagon bolt, but the meaning is the same. Of course, there are also some flower shaped hexagon socket head bolts. The use of this is relatively small, and it is hardly seen in the market.
Although there are many kinds of internal hexagon bolts in national standards, there are some special ones basically, which are rarely used in the market. The more commonly used is the number of hexagon socket head bolts, also known as hexagon socket head screws.
Round Head Hex / Hexagon Socket Head Cap Screws, Black Oxide/Galvanized Carbon Steel DIN912 4.8 8.8 GRADE BOLTS, special high tensile t 8.8 grade bolt of screw fastener from china ISO9001:2015, m8 bolt A325M 8S structural bolt heavy hex bolt and nut 1.Name Round head Hex / Hexagon Socket Head Cap Screws Black Oxide/Galvanized Carbon […]