【High Breaking Strength and Safe Working Load】 – Rated at 4500 lbs breaking strength with a 2000 lbs safe working load, providing strong and reliable cargo security 【Rust-Resistant Finish】 – Premium anti-rust coating ensures long-lasting durability even in harsh outdoor conditions 【Quick Release and Easy Use】 – Fast installation and removal design makes cargo control convenient and efficient 【Thumb Nuts for Easy Adjustments】 – Ideal for situations where less torque is needed, allowing quick hand-tightening and easy removal without tools 【Nylon-Insert Lock Nuts for Secure Hold】 – Requires tools for tightening, preventing loosening under heavy vibrations to keep cargo firmly fixed Vandrabase 8Pcs L Track Double Stud Lug Tie Down M8 x 60mm with Nylon-Insert Lock Nut and Thumb Nut,4500 Lbs Max Load, Heavy-Duty L Track Accessories for Truck Bed and Trailer Cargo Control