' Plow Bolt, Countersunk Square Neck, Carbon Steel, Zinc Finish, Thread Size 1/2-13, Length 2 1/2 In, Grade 5, Head Dia 0.945 in, Head Height 0.417 In, Flat Head Type, Head Angle 80 Deg, Square Width 0.515 In, Tensile Strength 120, 000, Meets/Exceeds SAE J 429, SAE J 995, Includes Nut, Package Quantity 10 '