Stanley flat bar, slotted, 1-3/8 in width, 36 in overall length, 0.08 in thickness, steel, galvanized. Country of origin us. Holes are punched to match when used with slotted angles. Corrosion-resistant galvanized finish. G 60 high corrosion resistant galvanized finish. Designed for sturdy hanging or bracing. Holes are punched to match when used with slotted angle (4020 series). fasteners can be applied through holes to affix. National catalog model.