1,SS303 material passivated 2,For 1mm thick sheet 3, For use in HRB70 Steel or HRB125 Aluminum Sheet or less hardness 4,OEM In-saiL ("Sandum") manufacture wide range of fasteners used in sheet metal assembly. Those fasteners are clinched onto the sheet metal tightly by press fastener into the prepared holes and provide strong fastening. DATA SHEET TPS Self-Clinching Pilot Pin