254Pcs Bolts And Nuts Assortment, 1/4 20 Bolt, 5/16 18 Bolt, 3/8, Fully Threaded PRODUCT NAME - 1/4-20 5/16-18 3/8-16 metric bolt assortment, with matching nuts and washers, various sizes and precise threads for different usage. 1/4-20 x 3/4"(10pcs), 1/4-20 x 1"(10pcs) , 1/4-20 x 1-3/4"(8pcs) , 1/4-20 x 2"(6pcs), 5/16-18 x 3/4"(8pcs) , 5/16-18 x 1"(4pcs) , 5/16-18 x 1-1/2"(4pcs) , 5/ 16-18 x 2"(4pcs) , 3/8-16 x 1-3/4"(4pcs), 3/8-16 x 2-1/2"(4pcs) MATERIAL - High quality 304 stainless steel material. Mywish 304 stainless steel products have been rigorously tested, higher corrosion resistance and anti-rust effect in different extreme environment. Strong solid structure and longer lifespan. Please note that the magnetic properties of 304 steel always show weak magnetic properties due to the structure transformation reasons. WIDE RANGE OF APPLICATIONS - 254 pieces cost effective set. Can be widely used in different kinds of precision machinery industry, classified instruments, instruments, electronic products, household appliances, furniture repair, communication products, locks, toys, DIY projects fasteners. PACKAGING - 254 Pieces M5 M6 M8 machine screw assortment kit, comes with sturdy and reusable transparent storage container. 2 Labels with the position and quantity. Easy to distinguish the size of the product. Please keep it away from children. AFTER SALE SERVICE - MYWISH team aims to provide our customers with a professional service. Please contact us if you have any issues with the products. Small Tip - The screw set includes small-sized components, ensuring safety precautions to prevent access by any children under 6 years old. Mywish prioritize safety measures, please keep these items out of reach of young children.