Self Tapping Screws

We offer self tapping screws. The essential characteristic of tapping screw thread is its capability of forming chipless internal thread in the core hole of the material being joined. - these core hole data which are theoretically calculated and based on actual tests are valid for fasteners with tapping screw thread to din 7970 and only for application in metals with tensile strengths indicated in the tables. - they cannot be used for plastics. For this application several modifications of tapping screw thread have been developed.