Our expansion bolt fasteners are designed specifically for securing and driveway markers. These bolts are crafted from iron materials to ensure durability and performance. The unique design allows for easy installation in asphalt and concrete surfaces, providing a secure hold that withstands the rigors of daily traffic. Ideal for use in parking lots, garages, and residential driveways, these bolts offer reliable stability and safety. Features -Color:Silver -Material:Iron -Size: 8.50X2.00X2.00cm/3.34X0.79X0.79in -Thread diameter: M8 -Special design: ensures secure installation of ground locks, effectively preventing movement or loosening -Highstrength material: made from highstrength materials that withstand heavy pressure without deformation, suitable for hightraffic areas -Internal expansion structure: enhances grip, providing stable anchoring even on hard surfaces -Quick installation: reduces construction time, making it ideal for use in parking lots, schools, and other locations -Portable: expansion bolt is easy to carry, allowing users to use various scenarios Package list: x bolts