Bump Pads are an ADA requirement for new construction involving street intersections and other hazards for the visually impaired. The pads need to be securely attached to the walkway. If the surface is asphalt, our AM625 is the perfect solution. It will hold and hold, requires only a ¼" hole in the mat to run the screw through it, will never rust, and allows the mat to be removed for repair, replacement or for other considerations. The suggested anchor is AM625.