SECURE AND CONVENIENT: Keep your trailer securely attached with our Trailer Coupler Pin. This sturdy trailer pin, also known as a coupler pin or trailer tongue pin, features a solid steel construction with a reliable spring retainer clip. It provides a convenient one-handed operation for easy and secure trailer connection. Easy to Use: The D-shaped clip, made of durable spring steel, provides exceptional strength and flexibility. We have increased its length to enhance ease of use.Additionally, we have optimized the trailer hitch pin length to 2 3/4 inches, expanding its suitability for various scenarios and applications. Securing your trailer is a breeze-just insert the safety pin into the coupler latch, and enjoy a reliable lock with the D-shaped retaining clip. CORROSION-RESISTANT: Our trailer pin is protected by a durable zinc-plated finish, offering excellent resistance to rust and corrosion. This corrosion-resistant coating ensures long-lasting durability and hassle-free use, even in challenging weather conditions. VERSATILE: With its 5/16-Inch (8mm) diameter, our trailer pin is highly versatile and compatible with a wide of trailer couplers and hitch receivers. It can also be used as a shaft locking pin, providing a secure fit for various applications, such as trailer jacks, hooks, and more. HIGH-STRENGTH: Crafted from solid steel, our 5/16-Inch (8mm) coupler pin guarantees exceptional strength and reliability. It offers peace of mind on the road, ensuring a safe and confident towing experience throughout your adventures. Color: silver material: metal Package Contents: 10 x Trailer Coupler Pin Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.