Combines with 300 series corrosion resistance and 400 series mechanical performance, outstanding performance with high torque. 
Salt spray test results Exceeding 2000 hrs
#10/M4.8 screw can direct penetration of 3.0mm or 1.6+1.6mm steel plate. (Strong drilling capabilities)
Finish: Passivated, Electroplating, Coating
Application: Self-Drilling Screw, Decking Screw, Sheet Metal Screw, Salt-Water Environment