Countersunk Head Phillips Self Drilling Screws

There are many types of winged self-drilling screws, but they all have the same characteristics. There are five main characteristics. The following hardware details the five features of winged self-drilling screws:

1. Usually made of carburized steel (99% of total products). Can also be used on stainless steel or non-ferrous metals.

2. Self-drilling screws with wings must be heat-treated. Hardware tells you that carbon steel self-tapping screws must be carburized, and stainless steel self-tapping screws with wing nails must be solid solution hardened. In order to make self-tapping screws meet the mechanical properties and performance required by the standard.

3. Winged self-drilling screw products have high surface hardness and good core toughness. That is, "soft on the inside and strong on the outside". The hardware tells you that this is a major feature of the performance requirements of self-drilling wing nails. If the surface hardness is low, it cannot be screwed into the matrix; if the core has poor toughness, it will break as soon as it is screwed on and cannot be used. Therefore, "soft inside and rigid outside" are self-drilling screws with wing nails to meet performance requirements.

4. The surface of Best Self Drilling Screw With Wings products needs surface protection treatment, usually electroplating treatment. The hardware tells you that the surface of some products needs to be treated with phosphate (phosphating). Example: Self-drilling screws with wing nails on wallboards are mostly phosphated