1, Diameter: 3.5-4.8mm. 2, Length: 6.5-70mm. 3, Material: C1022 4, finish: black/gray phosphated. DIN standard screws, can be used ... : 1. Material: C1022,2. Diameter: 3.5 mm (6#), 3.9 mm (7#), 4.2 mm(8#), 4.8 mm (10#)3. Length: 16mm ... to 152mm, (5/8 – 6 inches)4. Thread: Fine/ coarse5 ...