20 Pieces M8 x 60 mm Zinc Plated Concrete Screws Without Dowel

M6 concrete screws use high-strength carbon steel substrate and galvanized coating providing high tensile strength, corrosion and oxidation resistance. They are therefore suitable for humid, outdoor and industrial environments (such as factories and underground car parks). No expansion tube: The special cutting groove at the tip of the screw allows you to directly drill into concrete an internal thread with a high bite force, without requiring an expansion tube or anchor bolt beforehand, thus improving installation efficiency. Hexagonal design: The hex head screws are sturdy and have a hex bit and washer, which increases the bearing surface. The interaction with the external hex bit helps to withstand high torque impact drilling and prevent head slippage or deformation. Widely Used: Suitable for masonry, concrete, machinery, industrial construction, automotive transportation, electrical products, mechanical bases, steel bridges, shelf anchoring and other applications that require vibration resistance. Box contents: you will receive 30 concrete screws M6 x 75 mm. The absence of tensile stress avoids the risk of cracking of concrete, which makes them particularly suitable for reinforcing old buildings. They meet the requirements of use in many areas.