Stainless steel combination screw is made of stainless steel screw wire pier fight. The first pier hit pan head screws or hexagon screw inspection, the use of artificial stainless steel flat spring pad to wear on top of the screw. To have automatic wear pad machine, then directly into the screw, spring pad, flat pad were placed on the combination of screw threading machine, the machine will automatically rub good, rub after a good, automatic rubbing teeth. Rubbing a good combination of stainless steel tooth screws, the color is true, then, you need to color the combination of stainless steel screws clean, make it beautiful, bright. If the customer asked to smoke more than 72 hours, then, you need to take the combination of stainless steel screw plating passivation treatment. So that it reached more than 72 hours of salt spray.