Size:Total length duplex clips: 34mm, side width: 10mm ,thread diameter: 3.9mm,Total weight: 8 pieces. an error of 0~3cm. M3 duplex bolt cable clamp is suitable for 3mm wire rope. Material:Duplex cable clamps made of 304 stainless steel, 304 stainless steel has excellent rust resistance, corrosion resistance and good crystal corrosion resistance. Wear-resistant, glossy surface, long-term durability, anti-rust, anti-corrosion, anti-breakage. Works well in wet indoor and outdoor environment Easy to Use:Duplex cable tie is made of bolt and nut bases, washers, which has stronger locking ability and more stability. The duplex clamp is characterized by a simple and practical design and easy to use. When you use it, turn the nut with a wrench on the double chuck, then wrap the cable on each side of the bolt, then use a suitable wrench to tighten the nut. Wide Application: Heavy duty cable clips are a necessity of our lives. The duplex clamp can be used to fix clothesline, sun sail, awning, banner, cable and also can be widely used in industry, construction, transportation, boat and anchor. For your safety, be sure to use the correct number of cable ties. recommended to use 3 duplex clamps at each end to prevent cable ends from slipping.