... 3,Dia.:3.5mm~6.3mm(#6~#14) 4,Points:PT.1~PT.55,Surface finish:---a) White ... 15481, ISO 15482, ISO 15483,Modified Truss Head Self Drilling and Tapping Roofing Screws;DIN7504K,SAE J78,ISO ... ISO 15481, ISO 15482, ISO 15483,Countersunk Head Self drilling and Tapping Roofing Screws;DIN7504K,SAE J78,ISO ... 15480, ISO 15481, ISO 15482, ISO 15483,Concrete Screw;DIN7504K,SAE J78,ISO 15480, ISO 15481, ISO 15482 ...