Specification: * Material: 12.9 Alloy Steel * Type : M2.5 x 6, Weight : 83g * Head Socket : Hex Type, Head Type : Pan Head * Essential Parts for RC airplane helicopter * Suitable for use in RC Airplane Motor, FPV frame Package List: * 200Pcs x Globalstore M2.5x6 SHCS Global-store brand has tested all products before shipping to ensure proper functionality. Your satisfaction is our top priority. if you have any problems after delivery please feel free to contact us through the Amazon Email System and we will do our best to serve you.Â