self drilling screw

ZINC PLATED HEX HEAD SELF DRILLING SCREW is the popular product of our factory, daily production can reach more than 10 tons, the specification conforms to international standard，heat treatment and galvanizing make hardness and corrosion resistance stronger, not only can meet the customer's requirements for any salt spray test hours, but also to meet the customer's requirements for surface treatment.

Bi-Metal Self Drilling Screws are fully corrosion resistant stainless steel drill screw, the screw locking part and head are made of austenitic stainless steel, the tapping part and end of the drill shall be divided into alloy steel (or high carbon steel). The surface is specially treated, Anti-corrosion life can achieve the ultimate effect.

HEXAGONAL HEAD SELF DRILLING SCREW is the popular product of our factory, daily production can reach more than 10 tons, the specification conforms to international standard，heat treatment and galvanizing make hardness and corrosion resistance stronger, not only can meet the customer's requirements for any salt spray test hours, but also to meet the customer's requirements for surface treatment.