1.Grade:6.8grade, 2.materail: stainless steel 3.finish: zinc plate 4.Size: M8-M64 we can provid you bolt,nut and washer according to your drawing, the products implement GB,DIN, ISO, ANSI and so on.Delivery time: within 30 days Package: carton first, then pallet ,also can meet your requirmentGrade: 4.6-12.9grade 6.8 grade Flat Head T bolt with nut and washer