【Package includes】110pcs button head hex screws, 70pcs hex nuts, 110pcs flat washers and 110pcs lock washers.Total 400pcs Comes with 1pc hex wrench for easy installation. All these screws, nuts and washers are packed in a plastic box, sorted by type and size, to avoid messing about
【Product Sizes】There are 7 sizes of button head socket cap screws, the diameter is M4, which are: M4 x 6mm/8mm/10mm/16mm/20mm/25mm/30mm Supplied with matching M4 Hex Nuts, M4 Flat Washers and M4 Lock Washers; the hex wrench size is M2.5. You can choose different sizes of screws according to different occasions
【High Quality Material】Our screws, nuts and washers are made from high quality 304 stainless steel to withstand drastic weather and temperature changes in harsh environments. They are superbly rust and corrosion resistant to ensure your long-term use
【Great workmanship】 Our Hexagon Socket Head Cap Screws with Cylindrical Head use precise cutting technology, the threads are so accurate and neat that they are less likely to deform and slip during rolling and installation. Nuts, flat washers and lock washers extend the contact area and reduce stress, thus protecting the screws and parts
【Wide Application】The button head hex socket cap screws, nuts and washers kit can be widely applied to various kinds of precision machinery, classified instruments, instruments, electronic products, household appliances, communication products, locks, lamps, lights, toys, etc. It is suitable for professionals, amateurs, landlords and repairmen