【Marine Grade】Antsky wedge anchor bolts are made from high quality 316 STAINLESS STEEL, it's rust resistance, can last long in wet and humid environments;
【Diameter】The OD of the anchor is 3/8'', the total length is 3-1/2" , the length of the threads on the anchor is 2";
【Black Painting】Our anchor's surface is electric painted into black colour, which is special made for longer working life and stylish looking;
【Application】This anchor is designed to use in concrete、rocks etc. base material;
【Note】The anchor requires a pre-drilled hole in the base material, which must be same size as the OD of the anchor, we suggest to use a 3/8'' drill bit.