Home » Tender for Supply Of Hexa Hd Screws In Various Sizes, Specifically Iso 4017-m16x50, M16x45, And M16x100, With A Property Class Of 10.9. The Screws Must Be Zinc Electroplated And Coated To Ensure Durability, With A Minimum Salt Spray Test Life Of 1000 Hours. The Prod, India