1.Standard :EN ISO 15480(DIN7504)

2.Length:13mm-280mm1/2~11

3.Dia:3.5mm-6.3mm(#6~#14)

4. Points:PT.1-PT.5

5.Surface finish:

a)White ,yellow or black zin,

b)Black or gray phosphor,

c)DAKROMET

d)RUSPERT

e)Geomet

f)Magni

g)Black Oxide

h)Nickel

g)Head painted

h)Electrophoretic Paint

6.Packing: cartons, nylon boxes, wood box, small box, plastic box

DIN7504K,SAE J78,ISO15480,ISO15481,ISO15482,ISO15483,Pan Framing Head Self Drilling and Tapping Roofing Screws;