PHOSPHATE COATED STAINLESS STEEL WIRE FOR COLD HEADING, AND SELF-DRILLING SCREW USING THE STAINLESS STEEL WIRE

摘要

PROBLEM TO BE SOLVED: To provide a phosphate coated stainless steel wire for cold heading and a self-drilling screw using the stainless steel wire.;SOLUTION: There is provided a stainless steel wire 10, on the surface of which a phosphate coating 12 is formed. The amount of the phosphate coating is 4.0 to 14.0 g/m². Since the phosphate coating is formed on the surface of the stainless steel wire, a cold working property and clamping force can be significantly improved, and further since appearance is also improved, a post-process after heading is eliminated.;COPYRIGHT: (C)2012,JPO&INPIT