Feature●1#: Screw thread diameter: 0.1 - 0.2 inches (3 - 5 mm)●2#: Screw thread diameter: 0.2 - 0.3 inches (4 - 8 mm)●3#: Thread Diameter: 0.2 - 0.4 inches (5 - 10 mm)●4#: Thread Diameter: 0.2 - 0.5 inches (6 - 12 mm)Description
1#: Screw thread diameter: 0.1 - 0.2 inches (3 - 5 mm)
2#: Screw thread diameter: 0.2 - 0.3 inches (4 - 8 mm)
3#: Thread Diameter: 0.2 - 0.4 inches (5 - 10 mm)
4#: Thread Diameter: 0.2 - 0.5 inches (6 - 12 mm)