Carbon Steel Material: Made of carbon steel, sturdy and durable, not easy to deform. The surface is made of planted zinc, rust-proof and corrosion-resistant. Self-locking design: The pin is designed with a self-locking ring, and the spring-loaded locking pins are structurally sound and reasonably constructed, which is very convenient to use and won't loosen with use. Many Uses: Great for table saw, lawn, gardening, agriculture, truck, boat, trailer or other locking applications.Content: 10 round carbon steel safety pins, total length: 45mm, diameter: 6 mm.Scope of delivery:10 round carbon steel safety pins, total length: 45mm; diameter : 6 mm.Carbon steel. Material:Made of carbon steel, sturdy and durable, not easy to deform. The surface is made of planted zinc, rustproof and corrosion resistant.Self-locking design:The pin is designed with a self-locking ring, and the spring-loaded locking pins are structurally sound and reasonably constructed, which is very convenient to use and won't loosen when using.Wide Uses:Ideal for table saw, lawn, gardening, agriculture, truck, boat, trailer or other locking applications.