Package Included 50 x Stainless Steel Hex Socket Cap Screws with Same Length Specification Model M3SH5Mateiral Stainless SteelColor SilverScrew Drive Type Hex SocketScrew Head Type Cap HeadLength 4mm 6mm 10mm 16mm 20mm for Option Note If your want another length in bulk please contact us Features Sliver color appearance shines with metal luster will fit well in different occasions With 4 6 10 16 20mm lengths for option choose the appropriate length you need then it will come with 50pcs screws with same length The length of hex socket screw is measured from underneath the head to the flat of the point Socket cap screws are commonly used in machine parts die fixturing and clamping The socket head enables driving where there is not sufficient space for wrenches or sockets Made of 304 stainless steel ensure its high hardness and corrosion resistance anti rust and durable Widely used for industry equipment quadcopter DIY crafts home repairing and so on More Details