Material: Carbon Steel, Stainless Steel

Head: Pan head, Flat head, Truss head, Hex head, Hex washer head, Hex Washer head with washer.

Thread Diameter : 3.5 mm to 6.3 mm

Length : Maximum 75 mm

Plating : Silver Zinc plated, Yellow Zinc plated, Black Phosphorus plated

             Zinc plated +protective coating can pass the salt spray testing  

             Over 500 hours no red rust 

Powder Coating on screw’s head