Key Stock Assortment System of Measurement Metric Material Steel Material Grade/Class Ungraded Finish Zinc Plated Thickness Tolerance +0.000/-0.002 in Length 305 mm Length Tolerance +0.000/-0.125 in Number of Pieces 31 Number of Sizes 7 Manufacturer Location Made in USA Pack Size Small Pack Includes (3) 12x12x305 mm (3) Each 10x10x305 mm (5) 4x4x305 mm (5) 5x5x305 mm (5) 6x6x305 mm (5) 7x7x305 mm (5) 8x8x305 mm Product Type Straight Key Stock Assortment Key Shape Straight