Specification: Screws Type: Hex Socket Button Head Screw Drive Type: Hex Socket Size:M3 Length: 4-50mm (optional) Quantity: 100pcs Material : Carbon Steel Drive Style : Hex Socket Head Style : Hex Screw Type : Machine Screws DIY Supplies : Metalworking Package list: according to your choice Note: Due to manual measurement, there will be an error of 1-3mm, I hope you can understand, thank you. Satisfaction Guarantee Our first priority is to provede you with an easy,pleasant,and anxiety-free shopping experience we try our best to give a clear,candid,and complete description of our products and their conditions we are always ready to help if you have questions or encounter a problem ,but if for any reason you are not satisfied with a product or service please do not hesitate to contact us It is very impottant to us that you have a positive & 5 star transaction with us. please contact us promptly before you leave us negative feedback.we weill try our best to resolve you problem. If I am not online,please leave your message,we will reply you once we log in.we reply every message except we have not get your message. Refund we accept refund if product not as decribed If the goods are damaged.Please provide photos.We can give you a full refund.Or send you a new item If the product is lost. Or the wrong number. If we make a mistake. We accept partial refund compensation Services After receiving the payment. We will send the goods within 12 hours _x000D_