Material
Stainless Steel,carbon steel
Product name
Indented Hex Washer Head Roofing Self drilling screws DIN7504
Surface treatment
Zn- Plated
Size
Diameter: 3.5mm~6.3mm, 6#~14# 4.Length: 6.5~150mm, 1/4"~6"
Business type
factory since 1990
Key word
Hex Washer Head self drilling screws