Material: Made from 304 stainless steel for corrosion resistance and durability, thick material, large bearing capacity. The M4 duplex bolt cable clamp is suitable for 4 mm wire rope. Easy to use: The duplex wire rope clamp is made of bolt bases and nuts, washers , which has stronger locking ability and more stability. duplex clamp is characterized by simple and practical design and easy to use. When you use it, twist the nut with a wrench on the double chuck, then wind the cable on each side of the bolt, and then use a suitable wrench to tighten the nut. Wide application: Heavy duty wire rope clips is a necessity of our life. Duplex clamp can be used to fix clothesline, sun sail, awning, banner, cable, and can also be widely used in industry, construction, transportation, ship and anchor. For safety, make sure to use the correct number of cable clamps. It is recommended to use 3 duplex clamp at each end to prevent the cable ends from slipping out. Package: You will get 6x M4 double clamp wire rope clamps.