1. Material: carbon steel, stainless steel.
2. Head style: hex. washer head, hex. flange washer head, pan head, flat head, thin wafer head, modify truss head, button head, oval head.
1. Diameter: #2 - 5/16 (M2 - M8).
2. Length: 1/4 - 15" (6.35 - 400mm).
3. Point: No. 1 - No. 5.