Standard: BS 3692 (British Standard for precision hex bolts, screws, and nuts)
Thread Size: M56 (Metric thread, 56 mm nominal diameter)
Thread Pitch (Coarse): 5.5 mm (standard coarse pitch; fine pitch options like M56×4 available if specified)
Thread Type: ISO metric, 60° thread angle
Bolt Types Covered: Hex bolts, hex screws, set screws (partially or fully threaded depending on length)
Material Grades: Typically in 8.8, 10.9, or stainless steel for high-strength applications
Tolerances: External thread tolerance 6g (medium fit for general use)
Head Type: Hexagonal head (conforming to BS 3692 dimensions)
Applications: Heavy-duty construction, bridges, turbines, shipbuilding, energy, and infrastructure projects
M56 Bolt – BS 3692 Standard
