【Premium Materials for Strength & Durability】- Crafted with a 6063-T6 aluminum alloy base, stainless steel ring and spring, and a carbon steel center pin, these L Track single stud fittings are engineered for heavy-duty performance, corrosion resistance, and long-term reliability in demanding environments 【Secure & Safe Tie-Down Capacity】- Each fitting offers a 4,000lb (1814kg) breaking strength and 2000lb (907kg) working load limit—ideal for securing motorcycles, ATVs, equipment, ladders, and cargo in trailers, truck beds, and vans with confidence 【Quick & Easy Spring-Loaded Installation】- Features a spring-loaded plunger mechanism that allows fast attachment and release. Just insert into the L Track slot, press down and slide to lock—no tools needed for setup or repositioning 【Universal L Track Compatibility】- Designed to fit all standard L Track rail systems including aircraft-style, angled, surface-mount, and recessed rails. A versatile choice for trailers, RVs, pickup trucks, and more 【Reliable Cargo Control Accessory】- Provides a strong and secure anchor point for tie-down straps and ratchet systems. Whether you're hauling gear for work or play, these single stud L track O-rings deliver dependable cargo security every time Durable L Track Tie Down O Ring with 6063-T6 aluminum base, stainless steel ring & spring, and carbon steel stud. This single stud fitting offers secure cargo control—ideal L Track accessory for trailer, truck bed, or van. 4000LBS break strength, easy to install