The Pressure Rivet Nut Tool Kit by AskWay includes 430 pieces of metric rivet nuts in sizes M8, M6, M5, and M4. This kit is designed for use with hex nuts and features a convenient combination of sizes to suit various fastening needs. The model number MLM-00430 indicates the specific collection of products included in this set, making it a versatile and practical choice for industrial and business applications requiring high-quality fasteners.