General description The Light Duty Flame Retardant Anti-Vibration Rubber Lined U-bolt is designed for use with 150 NB pipes, featuring a 168 mm internal diameter. This U-bolt is constructed from zinc plated mild steel and includes two nuts on each leg, ensuring secure installation and durability. Technical specifications Internal Diameter (ID): 168 mm Nominal Bore (NB): 150 mm Pipe Outer Diameter (O/D): 168.3 mm B: 105 mm C: 123 mm F: 180 mm Thread Size (G): 16 mm K: 120 mm X: 168 mm Backing Pad Dimensions (D*A): 35*15 mm Tolerance on dimensions: +/- 1 mm Material: Zinc Plated Mild Steel Other information Flame retardant rubber lining Material Grade: Railway Grade Silicone 80sh Postcured for minimum 4 hours at 200°C Smoke Density: 0.005 m2/g (BS6853 Pass) Flammability Temperature Index: 352°C (BS6853 Pass) Toxic Flame Emission: 0.12 (BS6853 Pass) Dielectric Strength (2 mm thickness): approx 24 KV/mm Strike-over voltage: approx 48 KV Advantages: Reduces noise and fatigue from