HIGH QUALITY 304 STAINLESS STEEL:It is dependable and rigid strength as its corrosion resistant quality. This type of steel can withstand drastic weather and temperature changes including placement within extremely humid areas. These qualities ensure hard-wearing making these screws and nuts virtually indestructible. WIDE RANGE OF USE AND PURPOSE:From furniture repair and plumbing to woodwork and other DIY projects. Ideal for use by a variety of workers and repairmen from plumbers to assemblymen both professional and amateur, even DIY usages can opt to use it. VARIETY SIZE GOOD STORAGE:500 pcs. Various sizes of M3 M4 M5 screws with matching nuts, totally 12 type models. Only One purchase the bolts and nuts kit assortment meets your multiple needs. Bonus 3 sizes of Hex Wrenches. All screws, nuts, and hex wrenches are put in the transparent plastic storage box, convenient for collect and use. ENVIRONMENTALLY FRIENDLY:The bolts and nuts are high-quality stainless steel, and the storage