This is not a new product, but something that was kept in stock. These are hexagonal bolts for construction. 19 pieces with a shank length of 5 sun (15 cm). The bolt diameter (head) is 7 bu (21 mm). Washers (2) and nuts will be included. How about for professionals, or for additions, renovations, or remodeling? I marked it as "Near Mint" because there are some minor dirt and 2-3 nuts of different types and thicknesses mixed in. Please only purchase if you understand and agree that these are stored items. "Bundling" with other metal fittings is generally not accepted due to the possibility of exceeding weight limits. (This is to prevent issues like the bottom of the cardboard box breaking.) If it's 2-3 items (that won't exceed the weight limit) other than the "maximum of 10 items," I can accommodate you if you give me some time.