1/4″ x 1-1/2″ x 4 Feet Aluminum Angle Unpolished Alloy 6061 90 Degrees Stock NEW by | Jul 8, 2026Finish Smooth Unpolished. Alloy Type 6061. Angle 90 Degrees. Material Grade 6061. Leg Length 1 1/2 in. Leg Length Tolerance +/-0.014 in. Leg Thickness 1/4 in. Outside Leg Length 1 1/2 in.