【Robust and durable】: The nuts with Flat metric threaded rivets are made of high quality stainless steel. They have a resistance greater than rust, which can guarantee a long time using. rivets are knurled with a deep thread at the bottom. inside, which are effective in fixing and non-slip. The knurled nut facilitates insertion into the room; machine. 【Excellent installation tools】:Excellent bolt nut installation tools. rivets to make the job easier and faster. 【Size and Quantity】: Type: M3*10; Quantity of package: 100pcs. crimp can be easily installed in many types of materials including steel, plastic and fiberglass. It is a great installation tool to make your easier and faster work.