5/16x2 Inch Hook Bolts with Driver, Double-Ended Screws, Self-Tapping, M8 Thread

These 5/16x2 inch hook bolts come with a driver and feature a double-ended design with self-tapping capability and M8 thread. Made of plain carbon steel, they are grade 4.8 and have a color zinc surface treatment. The specification is black, 100 pieces of double-ended screws with tapping head. They comply with standard GB798-88.