【600 Pcs Screws Nuts Washes Kit】- You can get 4 different sizes (4mm, 5mm, 6mm, 8mm) of M2 laptop screws and nuts, washers, a total of 600 pieces are packed in a handy transparent case which is 3.9 * 2.55 * 0.67 inches. A tweezer & a screwdriver are included | 【High Quality Material】- Made of high-quality carbon steel, these computer replacement screws are durable. The black color will hide them in the computer without being obtrusive. Drive type is Phillips and head style: cross recessed flat head | 【Wide Application】- Countersunk machine screws assortment set is perfect for many types of computers, such as DELL, Hp, Sony, Acer, IBM, Asus, Samsung, Toshiba satellite, or any other SSD Repair, NVMe Drive, camera, motherboard with the same accessory size | 【Storage Case & Perfect Accessory】- All of screws packed in a transparent plastic box, convenient for your storage and use. It comes with a screwdriver and a tweezer for easy use. The combination with nuts & washers can be used for more purposes. | 【Warm Tips】- The length is measured from the bottom. Please check the size before ordering. It contains small parts, please let it leave children away. We guarantee 100% satisfied after-sales service! If you had a problem, please let us know before leaving a review.