If you want to know more about the size of each specification, please refer to our size table. size description: M6x8: Thread diameter (D) 6mm, cylinder length (L) 8mm The cylinder nut is made of 304 stainless steel, which has good corrosion resistance and durability. The wires are clear, uniform in strength and difficult to slide. The insert nut has good fastening characteristics, because the thread has good friction and clamping force, which helps to insert and fasten parts and firmly connect them. Wide application: These threaded rivets are suitable for various industrial applications and are important inserts. For example: cars, furniture, decoration, handmade products, electrical appliances. color: silver quantity: 2 pieces