Standard: BS 3692 (British Standard for precision hex bolts, screws, and nuts)
Thread Size: M45 (Metric thread, 45 mm nominal diameter)
Thread Pitch (Coarse): 4.5 mm (fine pitch options like M45×3.5 or M45×2 available)
Thread Type: ISO metric, 60° thread angle
Bolt Types Covered: Hex bolts, hex screws, set screws
Material Grades: Typically available in 8.8, 10.9, or stainless steel (for high strength and/or corrosion resistance)
Tolerances: External thread tolerance 6g (standard medium fit)
Head Type: Hexagonal (standardized dimensions per BS 3692)
Applications: Industrial machinery, structural connections, transport infrastructure, power generation equipment
M45 Bolt – BS 3692 Standard
