Grade 8.8 Fully Threaded Hex Bolts ,Steel Hex Bolt Din 933
This item is Fine Thread Grade 8.8 Carbon Steel Hex Bolt M12 Din
960 Black Oxide,the material is carbon steel,the grade is 4.8,the
thread is fine thread,the size is M12,the standards is DIN960,the
surface treatment is black oxide.
The pruduct is bolt,or screw, is a type of fastener, typically made
of metal, and characterized by a helical ridge,known as a male
thread (external thread) or just thread, wrapped around a cylinder.
Some screwthreads are designed to mate with a complementary thread,
known as a female thread (internal thread),often in the form of a
nut or an object that has the internal thread formed into it. Other
screw threads are designed to cut a helical groove in a softer
material as the screw is inserted. The most common uses of screws
are to hold objects together and to position objects.A screw will
almost always have a head on one end which contains a specially
formed shape that allows it to be turned, or driven, with a tool.
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 addition, there are special uses: T grooved bolts, the most
commonly used machine tool clamps, the shape is special, and the
sides of the head should be cut off. The anchor bolts are used to
connect the machine to the ground, and there are many kinds of U
Any difference between the six hexagon head bolts can meet the
specifications of fasteners, some high-tech equipment has
strengthened the bolt parts processing technology, such as Chinese
aviation equipment for bolt quality requirements are higher,
because of the high quality of bolts can reduce the equipment
failure rate and maintenance time, so derived tin plating process.
Tin is a silver white metal with no poison and excellent
weldability and extensibility. Therefore, it is widely used in the
fields of electronics, food, automobiles and so on. The tin plating
process of the six angle head bolts is classified by the pH value
of the bath, which is divided into two kinds, the acid bath process
and the alkaline tin plating process.