Product introduction: Product material: 304 stainless steel Product size: M3.5~M14 Product features: The connection is solid, and the bite is tight and not easy to slip. The thread is deep and clear, and the force is even. One-piece polishing, waterproof and rust-proof. The steel cap is strong and stable, with strong bearing capacity. Product use: It can be used with steel wire ropes and metal chains. It is generally used for outdoor carabiner and safety buckles. It can also be used for swings and pet chain buckles.