High-quality replacement Bridge Bolt designed specifically for StopTech ST-40 and ST-45 high-performance brake calipers. This bolt reinforces the caliper bridge to maintain structural integrity and reduce caliper flex under heavy braking loads. Specification: Thread M6x1.0, Length 90mm. Kit includes: 1x StopTech M6x1.0x90mm Bridge Bolt (P/N 40.6B0.6090). Essential for brake system maintenance and pad replacement procedures on vehicles equipped with StopTech Big Brake Kits (BBK).