... 5 5.Surface:Dakromet1.Standard :EN ISO 15480(DIN7504)2.Length:13mm-280mm1/2~113.Dia:3. ... ,SAE J78,ISO15480.ISO15481,ISO15482,ISO15483,Painted Head Self Drilling and Tapping Roofing ScrewsDIN7504K,SAE J78,ISO15480 ... ,SAE J78,ISO15480,ISO15481,ISO15482,ISO15483,Countersunk Head Self dring and Tapping Rooding ScrewsDIN7504K,SAE J78,ISO15480 ... ,ISO15482,ISO15483,Others series. Nylon Head Self Drilling Screw