· Complete 966-piece metric bolt assortment kit includes M4, M5, M6, and M8 bolts (12-30mm lengths), nuts, flat washers, and lock washers in a labeled storage box. · Made from high-strength Grade 8.8 alloy steel with yellow zinc plating for excellent rust and corrosion resistance, ideal for outdoor or damp environments. · The portable handheld case keeps all hardware organized by size with clear labels, making it easy to store, carry, and quickly find the right fastener. · Versatile use for furniture assembly, machinery repair, automotive maintenance, DIY projects, and home improvement tasks. · Each bolt size is clearly marked on the compartment lid; no more guessing or searching through mixed bins.