
High-Strength Flange Bolts with Exceptional Durability and Performance. Integrated Flange Design: Single-flange with built-in gasket eliminates separate washers for efficient installation. Anti-Slip & Anti-Loosening: Bottom surface equipped with anti-slip teeth to increase friction and prevent loosening. High Strength Materials: Available in Carbon Steel (8.8/10.9/12.9 grade) and Stainless Steel (304/316). Wide Size Range: Standard sizes M5 to M20 available, with full length options for versatile applications. Customizable Options: Non-standard sizes can be customized to meet specific project requirements. Multiple Standards: Complies with GB/T 5789, GB/T 5790, DIN6921, and ISO4162 standards. Versatile Applications: Suitable for automobiles, machinery, construction, furniture, and pipeline systems. Even Force Distribution: Hexagonal flange design distributes force evenly, protecting connected component surfaces.