This genuine Case IH 382811R1 screw is a Grade 5 fastener, specifically sized at 1/2-13 x 1 1/4 inches (12.7 mm diameter x 31.75 mm length). It is designed for use in a wide range of International Harvester tractors, including models such as the 450, 706, 1066, and 4100 series, ensuring secure and reliable connections in critical assemblies like steering hand pumps. This OEM part guarantees proper fit and performance for your agricultural machinery.