Hakkin 10 Sae Sizes Machine Screws Set With Storage Case, 240 Pcs., And 5/16". Product Features ? [10 Sizes in 3/8" 1/4" 5/16", Hex Head Cap Screw Bolts with Nuts, Flat Washers and Spring Washers Meet All Demands] Nice nuts and bolts assortment include: 1/4"-20 x 3/4", 1/4"-20 x 1-1/2", 1/4"-20 x 1", 1/4"-20 x 2", 5/16"-18 x3/4", 5/16"-18 x 1", 5/16"-18 x 1-1/2", 5/16"-18 x 2", 3/8"-16 x 2-1/2" and 3/8"-16 x 1-1/2". ? [Superior Nuts and Bolts, Washers are All Made of High Quality 304 Stainless Steel, More Durable and Firm] Assorted nuts and bolts have superior rust resistance and the excellent of oxidation resistance, which can ensure long time using. ? [240Pcs Bolts Nuts and Washer Assortment Kit with SAE System, More Size, More Quantity] Various size of 3/8" 1/4" 5/16" screws and nuts, flat washers, spring washers total 240pcs. ? [Hakkin Nuts And Bolts Assortment Kit Can Be Widely Used] in all kinds of precision machinery, classified instruments, instruments, electronic products, household appliances, communication products, locks, lamps, lights, toys, etc. ? [The Screw Set Box Separation Design Makes The Bolts and Nuts Orderly and More Convenient to Take and Store] Storage: Bolts and Nuts Fasteners All are Stored In One Storage Bin Box. In case of missing or confusing. Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!