[Wide application]: These hexagon socket screw nuts are an excellent assortment of replacement nuts, suitable for various woods, especially in furniture combination, connection, stability and durability [Sturdy and Durable]: These insert nuts are made of high quantity zinc plated carbon steel for durability and rust protection, with high hardness and perfect wear resistance [Advantage]: Insert nuts are advantageous over barrel nuts and T-nuts because they can be installed on one side of the workpiece;the chamfer on the body of the nut makes it easier to insert the nut into the workpiece [More Choices]: There are screw nuts of different sizes and take different sizes of screws that you can choose for your project;M6*10mm/M6*13mm/M6*15mm/M6*17mm/M6*20mm/M6*25mm/M8*13mm/M8*15mm/M8*17mm/M8*20mm/M8*25mm/M10*25mm insert threaded nuts wood furniture insert nuts hexagon socket screws assortment tool set flat head rivets for assembly craftsman Ensem insert m10 thread thread dowel brass m8 x 20