General description Light Duty Flame Retardant Anti-Vibration Rubber Lined U-bolt designed for 76 mm ID pipes, suitable for 65 NB pipes. Constructed from zinc plated mild steel, this U-bolt features flame retardant rubber to enhance safety and performance. Technical specifications Pipe Nominal Bore: 65 Pipe O/D: 76 mm B: 51 mm C: 68 mm F: 95 mm G (Thread Size): 12 mm K: 75 mm X: 77 mm D*A (backing pad): 25*10 mm Tolerance on dimensions: +/- 1 mm Material: Zinc Plated Mild Steel Other information Flame Retardant Rubber Includes 2 nuts on each leg Material Grade: Railway Grade Silicone 80sh Postcured for minimum 4 hours at 200°C Smoke Density: 0.005 m2/g Flammability Temperature Index: 352°C Toxic Flame Emission: 0.12 Dielectric Strength (2 mm thickness): approx 24 KV/mm Strike-over voltage: approx 48 KV Advantages: Reduces noise and fatigue from vibration, prevents galvanic corrosion, and protects against wear of pipework.