I.T.S. Screw System with the below descriptions and corresponding article numbers. 1. Cancellous Screw, Cannulated; Article Numbers: 31404-16, 31404-18, 31404-20, 31404-22, 31404-24, 31404-26, 31404-28, 31404-30, 31404-32, 31404-34, 31404-36, 31404-38, 31404-40, 31404-42, 31404-44, 31404-46, 31404-48, 31404-50, 31404-55, 31404-60, 31404-65, 31404-70, 31404-75, 31404-80, 31457-30, 31457-36, 31457-40, 31457-46, 31457-50, 31457-55, 31457-60, 31652-100, 31652-105, 31652-110, 31652-115, 31652-120, 31652-25, 31652-30, 31652-35, 31652-40, 31652-45, 31652-55, 31652-60, 31652-65, 31652-70, 31652-75, 31652-80, 31652-85, 31652-90, 31652-95, 31731-100, 31731-105, 31731-110, 31731-115, 31731-120, 31731-50, 31731-60, 31731-65, 31731-70, 31731-75, 31731-80, 31731-85, 31731-90, 31731-95, 31732-60, 31734-100, 31734-105, 31734-110, 31734-115, 31734-120, 31734-45, 31734-50, 31734-60, 31734-65, 31734-70, 31734-75, 31734-80, 31734-85, 31734-90, 31734-95. 2. Cortical Screw, Cannulated; Article Numbers: 31357-44, 31357-22, 31357-48, 31277-18, 31357-20, 31357-22, 31357-24, 31357-26, 31357-28, 31357-30, 31357-32, 31357-34, 31357-36, 31357-38, 31357-40, 31357-42, 31357-44, 31357-46, 31357-48, 31357-60, 31357-65, 31357-70. 3. Washer; Article Number: 36851. 4. Washer, Concave; Article Numbers: 36432, 36653, 36732. 5. Washer, Flat; Article Numbers: 36431, 36651, 36653, 36731.