M3 - M42 Size Grade 8.8 High Tensile Stainless Steel Bolts Hexagon Head Type Din 933

Din 933 Grade 8.8 Half Threaded Hex Bolts ,Steel Hex Bolt M3 - M42 Size

Products Description:

The six angle bolt is a fastener consisting of fingers and screws. The bolts are divided into iron bolts and stainless steel bolts according to the material, namely the six angle head bolts (partial threads) -C and six angle bolts (full thread) -C level.

In order to meet the needs of locking after installation, there are holes in the head, and the rod has holes. These holes can make the bolts free from loosening when they are vibrated.

Some bolts are not thread rod to do fine, is conducive to the slender waist bolt. The bolt connection under variable force

There is a special high strength bolt on the steel structure. The head will be bigger and the size changes.

Advantage:

The advantage of acid tin plating is that the plating speed is faster. And the coating is bright and meticulous, deep plating ability. The plating solution has a strong tolerance to impurities, and the operation at room temperature is more energy saving. However, the plating method also has shortcomings, that is, the dispersing ability of the bath is poor, the porosity of the coating is higher, the brazing is not as good as the alkaline tin plating, and the two valence tin is hydrolyzed. Therefore, the six angle head bolt acid tin plating is divided into sulphate tin plating, fluorborate tin plating and oxide tin plating because of different conductive medium. At present, some special industrial six - corner head bolts are used in this tin plating process.

Specification