140-Piece Kit With A Plastic Storage Box That Includes An Assortment, And Nuts. Specification: Standard:British system, American system Size: #10-24*5/16 #10-24*3/8 #10-24*1/2 #10-24*5/8 #10-24*3/4 #10-24*7/8 #10-24 nut Weight: Approx.310g/10.9oz Package list: 1 x 140pcs/box Pan Head Screw Product Features HIGH QUALITY: These cross pan head screws kits are made of stainless steel, which offers good corrosion resistance in many environments. VARIOUS SIZE: There are 140 pieces of screws and different length to meet your different needs. APPLICATION: This 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. STORAGE BOX: All of screws nuts will be well packed and assorted in a resealable transparent box for convenient storage and carry. QUALITY AFTER-SALE SERVICE: If you are experiencing quality issues or any problems, please come to us. We will solve all your problems for you. 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!