Button Pan Truss Carriage Round Cheese Fillister Binding Pancake Tensile Strength Tensile Strength 130 lbs. 200 lbs. 8,000 psi 9,000 psi 9,700 psi 10,000 psi 11,000 psi 13,000 psi 18,000 psi 21,000 psi 25,000 psi 30,000 psi 35,000 psi 40,000 psi 44,000 psi