heat treatment Truss self drilling screw

The self drilling screw Made of 410 stainless steel, high hardness (40 Rockwell C), steel process.
Standard cross recessed flat head screw, smooth and complete, with uniform force, difficult to prevent slip during rotation.
The tail of the drilling screw is in the shape of drilling tail or pointed tail, without auxiliary processing, it can be directly drilled, tapped and locked on the setting materials and basic materials, greatly saving construction time. Relatively common screw, its high ductility and maintenance force, combination after a long time will not loosen, the use of safety punch wire to complete the operation is simple. Drilling screw is a new invention in recent years, also called self tapping screw. Screw is a general term for fastener.
So what is the use of drilling screws?
1 stainless steel plate, metal plate, galvanized steel plate, engineering installation.
2 metal curtain wall metal light compartment and other indoor and outdoor installation.
General Angle steel, channel steel, iron plate and other metal materials combined installation.
4, automobile, container, shipbuilding, refrigeration equipment and other assembly projects.
Drlling screw is also very strong hardness, compared to the ordinary screw up, not only to maintain the ability is good, the connection object effect is also very strong, for the performance of the screw, are generally does not need auxiliary processing, can be directly on the object directly drill a Kong Suo into objects, not just use rise very convenient, Also can greatly improve the efficiency of work. This kind of drilling screw can be said to be the first choice of workers in various fields.
If you want to lock more solid items can choose to drill screw, it is a good choice.