bds001

1) Name: self tapping screw 2) Material:carbon steel 1010 1) Name: self tapping screw2) Material:carbon steel 10103)Surface finish:white zinc or blue zinc or yellow zinc4)Size:3.0*(10,12,14,15,16,20,25,30)3.5*(10,12,14,16,20)4.0*(10,12,14,16,20,25,30,35,40,45,50,55)5.0*(12,14,16,20,25,30,35,40,45)5) without heat treatment or without harden6)Samples free self threading pin