high-strength-bolts-2

High-strength bolts are mechanical fasteners manufactured from high-strength alloy steels (such as 40Cr, 35CrMo, 42CrMo, etc.) and heat-treated (quenching and tempering) to meet specified strength grades. The key differences from ordinary bolts lie in material strength, preload design and stress mechanism, making them widely used in industrial scenarios with stringent requirements for connection rigidity, fatigue resistance and load-bearing capacity.