Home > Products > Bolt
  •  inside hexagonal bolt

inside hexagonal bolt

The inside hexagon screw head is round on the outside and concave in the middle, and the hexagon screw is the kind of common screw head whose side is hexagonal. The inner hexagonal screwdriver looks like "7". Cut two ends of the hexagonal steel bar and bend it to 90 degrees to form an inner hexagonal screw wrench.