1)Name:chipboard screw or screw or self tapping screw 2)surface finish:yellow zinc or whte ... zinc or black oxide Chipboard Screw1)Name:chipboard screw or screw or self tapping screw2)surface finish:yellow zinc ... 13,15,16,18,20,25,30,35)3.5*(12,13,15,16,18,20,25,30, ... 90,100)5)Head style: phillip head, or pozidrive head6)Our items are best quality and reasonable price. flat head chipboard screw J001