What are differences between the different materials that the wedge anchor are available in?
Concrete wedge anchors can be made from carbon steel or stainless steel. The carbon steel wedge anchor can be zinc plated or hot-dip galvanized. Stainless steel wedge anchors are available in 303 or 316 stainless. Zinc plated carbon steel wedge anchors are the most common. The wedge anchor, clip, nut and washer are all made from zinc plated carbon steel. Although the zinc plating offers some corrosion resistance, these wedge anchors are generally used for interior applications only. Also, the zinc plated wedge anchor is not accepted for use in ACQ treated lumber. Hot dip galvanized wedge anchors offer the next level of corrosion resistance. Hot dip galvanized wedge anchors are suited for use in exterior applications where corrosion from water or moisture is a concern. They can also be used in ACQ treated lumber. The wedge anchor, nut and washer are made from carbon steel that is then hot dip galvanized, and the clip is made from 303 stainless steel. Stainless steel wedge anchors offer
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