... Quality Raw Material 3)Strict Testing Process and Management SpecificationsHex Nuts DIN934 1.Class 6 /Class 8 2.All Kinds ... Finish 3.Bulk Pckage /Small Package According To Customers' RequiesSizes From M6 (1/4") to M72 (3") CLASS 4 5 ... Surface: Plain, ZP,YZP,HDG,DACROMENT Diameters Metric: from M6 to M72, Inch. from 1/4" to 3"Grade: Metric size: ... ,BS1083,BS1768,IFI D-5,D-8,UNI5587,SQUARE NUTS,TEE NUTS