304 Stainless Steel 1/4-20, 5/16-18,3/8-16 Hex Head Nuts And Bolts Assortment Product Details 1.?12-size SAE Hex Head Nuts and Bolts?: Includes : 1/4"-20 x 3/4", 1/4"-20 x 1?,1/4"-20 x 1-1/4?1/4"-20 x 1-1/2", 1/4"-20 x 2", 5/16"-18 x 3/4", 5/16"-18 x 1", 5/16"-18 x 1-1/2", 5/ 16"-18 x 2", 3/8"-16 x 1",3/8"-16 x 1-3/4" and 3/8"-16 x2-1/2" 2.?High Quality 304 Stainless Steel?: These heavy duty Nuts ,bolts and washers are 100% made of quality 304 stainless steel, which is sturdy and durable and has superior anti-rust and abrasion resistance, anti-oxidation, corrosion resistance, no deformation to ensure the long service life of nuts and bolts 3.?Quality Technology?: .HVAKHVA are specialized in fasten area for many years, and this hex Head bolt and bolt have clear threads, even force, precise grip, make it easier to fasten 4.?What you can get ??: This nice bolt and nuts assortment comes with a solid storage case which include 12 sizes of 1/4", 3/8", 5/16"nuts and bolts, flat washers, spring washers , standard hex heads screws which can normal daily demands 5.?Wide Range of Applications?: HVAKHVA nuts and bolts can be widely used in INDUSTY such as kinds precision machinery and HOME project like repair of garages ,door handles, lamps, locks, and so on Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.