【Robust and Durable】The screw nuts flat rivets metric threads are made of high-quality stainless steel. They have excellent rust protection properties and guarantee a long service life. 【Deep Threads】: These nuts rivets are knurled. The interior is designed with deep threads for effective retention and anti-slip properties. Knurled nuts make it easier to insert into the workpiece. 【Excellent Installation Tool】Excellent knurled nut installation tool. Rivets, which makes the work easier and faster. 【Size and Quantity】Type: M6; Packaging Quantity: 100 pieces. 【Wide Range of Applications】Screw nuts blind rivets can be easily attached to a wide variety of rivets. made of materials such as steel, plastic, and fiberglass. The knurled nuts can be easily inserted into parts and installed on many types of materials, including steel, plastic, and fiberglass. It's a great installation tool that makes your work easier and faster. Material: 304 stainless steel