Deluxe Hardware Assortment Kit with Professional"No Mix" Case (1,300 Piece, 60 Sizes, Nuts, Bolts, Washers & Screws)NO MIX COMPARTMENTS: Interlocking Lid and Nested Dividers keep hardware from mixing. PROFESSIONAL CASE: Durable construction with stackable cases and customizable compartments. BUILT FOR WORK: Grade 2 Nuts Bolts. 6 Nibs + Type 17 point Heat Treated Screws. MORE SIZES AND PIECES: 1,300 pieces and 60 Different hardware sizes (25% more than leading competitor). SAE: 21 sizes and 450 pieces of Bolts (Phillips Head), Hex Nuts and Washers. METRIC: 20 sizes