[Set Screws Specification] : ) Material: 304 Stainless steel; Metric Mode: M4 and M5; Pitch: 0.7mm/0.028" and 0.8mm/0.031'. Inner Hex Dia.: 2mm/0.079" and 2.5mm/0.098'; Screw Length: 5mm/0.20'. 6mm/0.24'. 8mm/0.31'. 10mm/0.39'. 12mm/0.47'; Screw Type: Internal Hex. [100% High-quality] : ) These socket head cap screws are made of 304 stainless steel. It has higher corrosion resistance than ordinary steel. making it last longer than other hardware on the market today. Therefore it is widely used. [WIDELY USED IN] : ) bathroom door handle. faucet. light fixture. knobs. armament repair. plumber and other small repairs around the shop. garage or home. Also suitable for the office equipment industry. shipbuilding industry. machinery. etc. [GREAT STORAGE] : ) The set screws are great to have around for use in wet environments. All of the Screws are packed in a durable and sturdy Box to efficiently bear the weight of the whole package. There are corresponding size labels on the box for you to take it right quickly. [Cone Point Set Screws] : ) Our set screw assortment kit includes some common metric sizes so you can easily replace lost or damaged set screws. The cone point design is stronger and ideal for indoor and outdoor use. If you have any questions about the set screws.