... .Size:M16-72 2.Grade:10.9,8.8 3.Standard: GB898,GB899,GB900,GB901 4. Surface treatment: customised We have ... : hexagon bolt/screw, hex bolt/screw, high strength bolts/screw2) Standard: GB898,GB899,GB900,GB9013) Nominal size: M16-M724) Surface: Zinc ... : Cartons in a strong pallet.8) We can produce the Non-standard fasteners according to drawings or the samples.