FEATURES: Power-Stud SD1 Anchors are fully threaded torque-controlled wedge expansion anchors designed for concrete applications. Zinc plating offers moderate protection against rust and corrosion Suitable for use in solid concrete and grout-filled concrete masonry ENGINEERED FOR HEAVY-DUTY PROJECTS: Building Code Approved EASY-TO-UNDERSTAND BIT SIZING: Nominal drill bit size is equal to the anchor diameter EASY INSTALLATION: Anchor can be installed through standard fixture holes PART OF A COMPLETE FASTENING SOLUTION: Comes with a hex nut and flat washer of the same thread size and finish TERMS OF SALE: If, after receiving this item you discover that it was not the one you wanted, simply return it for a full refund within 30 days. Refund is void if you have installed, used, or damaged the item in any way. Item must be returned with its original box, packing materials, and instructions (if applicable) Cleared payment must be received within 2 days of the transaction prior to shipping. SHIPPING: Any posted shipping only applies to the U.S. 48 States PR. All other areas/regions will be automatically calculated with the shipping calculator and are based on your location. International buyers: Customs fees, duties, taxes, tariffs other fees are your responsibility. Arrival time will depend on your location. Please allow for ample shipping time for international destinations. If you have any questions, feel free to ask. Thank you for visiting!