The S0375-0740 Quick Lock Pin from Suncor Stainless is made from grade 316 stainless steel for ultimate corrosion resistance and durability. It is ideal for marine and industrial rigging applications. Precision Cast Material: Stainless Steel Total Length: 2.50 in. Shaft Diameter: 1/4 in. Shaft Length: 1.75 in. Top Diameter: 0.75 in.