SUPER PIASTA Full Stainless Steel A2 Self Drilling Screw

Super PiastaTM screws are the combination of the two of the best advantages of Stainless Steel. Austenitic Steel is used for the head and the fastening stank while martensitic stainless steel is dor the drill point and tapping shank. The stated martensitic stainless steel mentioned has an increased hardenability for the drill point.