This product has longer threads and is easier to install. It is often used in heavy-duty installations. To obtain a reliable and huge tightening force, it is necessary to ensure that the clamp ring fixed on the gecko is fully expanded. And the expansion clamp must not fall off the rod or twist or deform in the hole. The calibrated tensile force values are all tested under the conditions of cement strength of 260 ~ 300kgs / cm2, and the maximum value of the safety load must not exceed 25% of the calibrated value.Suitable for concrete and dense natural stone, metal structures, metal profiles, floor plates, support plates, brackets, railings, windows, curtain walls, machines, beams, beams, brackets, etc.Wedge Anchor: A wedge anchor is a type of mechanical fastener used to attach objects to concrete or masonry surfaces. It consists of a threaded stud with a cone-shaped end that expands when a nut is tightened onto the thread, wedging the stud into the hole and creating a secure hold.1. A complete set of our own team to support your selling. We have outstanding R&D team, strict QC team, exquisite technology team and good service sales team to offer our customer the best service and products. We are both manufacturer and trading company. 2. We have our own factories and have formed a professional production system from material supplying and manufacture to sale, as well as a professional R&D and QC team. We always keep ourselves updated with market trends. We are ready to introduce new technology and service to meet the market needs.