Features Made of Stainless Steel --- Our hex coupling nuts are made of 304 stainless steel with excellent craftsmanship, which can be used stably. 20Pcs in Kit --- There are 20pcs hex coupling nuts in this hex coupling nut kit, the quantity is enough to meet your daily needs. Operating Method --- The threaded rod coupling is used to install studs or machine screws that fasten two parts together to make one. Great Angle Granularity --- The long thin threaded rod is with 6 sides, which provides good angle granularity for tool approach. Corrosion Resistance --- The nuts in the hex coupling nut kit are strong and durable, and can be with corrosion resistance. Specification: Item Type: Hex Coupling Nut Material: 304 stainless steel Color: Silver Specification: M5 x 0.8-8-L15mm Use: For indoor and outdoor use. Package List:20 x Hex Coupling Nut Package List 20 x Hex Coupling Nut