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✅ Need to secure items into concrete? The high-grade Expansion Hook from DOJA Barcelona delivers robust anchoring for timber benches, garden fences or sheet metal. ✅ Crafted from high-performance steel, these Open Hook Sleeve Screws provide mechanical fixing for heavy loads in concrete, indoors or outdoors, and withstand aggressive conditions for reliable safety. ✅ Ideal for securing steel profiles, industrial machinery, handrails, lamp posts and waste bins, this Cup Hook Expansion Bolt excels on solid brick or poured concrete and features an integrated eye for hanging equipment. ✅ 4-step fitting for hook bolts or open cup hooks: 1) drill to the specified diameter and depth; 2) clear dust with air pump and brush; 3) tap expansion anchor flush with the surface; 4) tighten to the recommended torque using a torque wrench for correct setting.