Hex Head Flange Drilling Stud Self Drilling Self Tapping Screw

Self-drilling screw is a screw that can tap its own hole as it is driven into the material. For hard substrates such as metal or hard plastics, the self-drilling ability is often created by cutting a gap in the continuity of the thread on the screw, generating a flute and cutting edge similar to those on a tap. Thus, whereas a regular machine screw cannot tap its own hole in a metal substrate, a self-drilling one can (within reasonable limits of substrate hardness and depth) Specification item Hex head self drilling screws with EPDM washer Finish White Zinc, Yellow zinc, White Blue Zinc plated Material Carbon Steel Measurement system INCH,METRIC Head Style HEX Place of Origin China Standard DIN7504K Length 19mm-150mm Diameter 4.8mm, 5.5mm, 6.3mm(#10, #12, #14) Material C1022A, heat treatment Point Drill Point Usage Heavy industry, Decoration, General industry /* March 10, 2023 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1