Features 304 Stainless Steel --- These M16 hex coupling nuts are made of 304 stainless steel with excellent craftsmanship, which can be stably applied. Kit Contents --- There are 5 M16 hex coupling nuts in this hex coupling nut set, the quantity is enough to meet your daily working needs. Using Ways --- The threaded rod coupling is used to install studs or machine screws that fasten two parts together to make one. 6 Sides and Angle Granularity --- The long thin threaded rod is with 6 sides, which provides excellent angle granularity for tool approach. Strong and Corrosion Resisting --- The nuts in the hex coupling nut set are strong and durable, and can be with corrosion resisting. Specification: Item Type: Hex Coupling Nut Material: 304 stainless steel Color: Silver Specification: M16 x 2-24-L21mm Use: Specially designed to fasten two parts together to make them one, hex nuts are suitable for studs, machine screws, threaded rods, etc., for indoor and outdoor use. Package List:5 x M16 Stainless Steel Hex Coupling Nut Package List 5 x M16 Stainless Steel Hex Coupling Nut