Size: 4-4" Paint choice: Painted black, galvanized, e-coating, or dacromet Material: SAE G3500 or according to your requests; Tensile 250MPa min; Brinell Hardness 187-255Stud: 1/2-20UNF-2A, SAE-Grade 8, Tensile 150,000 PSI min, Proof 120,000 PSI min.Bearing: Race L-44610. Cone L-44610. H440 hub