Pan framing self-taping screw

(1)Material:C1022,high quality low carbon steel
(2)Head type : pan framming with serrated
(3)Drive:phillips (cross)  
(4)Thread type : all /half (more than 60mm is half thread )
(5)Dia: from 3.8mm to 4.8mm ,or as your required .
(6)Length : from 13mm to 125mm ,or as your required .
(7)Surface: galvanized: with white /yellow color , phosphating black /grey
(8) Application: used to fasten sheet metal composite materials, construction industry woods and plastics, metal with pre drill holes