Description: Bolts & Screws Specification: DIN, ISO, ASME/ANSI or Drawing. Head Style: Hex Head, Cap Head, Countersunk Head, Cup Square Head, Mushroom Head, T HeadGrade: from 4.8 to 12.9,Size: from M5 to M42Surface Finished: Self Colour, Zinc & Clear - Cr3, Zinc & Yellow, Hot Dipped Galvanized, Blue Rilsan Nylon 11, etc.Packing: Bulk Carton or Small Box (Bag) and then on to Pallet.