MACHINE SCREW C.K HEAD SLOTTED 1. Standard: DIN, ANSI, GB 2. Material: Carbon Steel,stainless stee MACHINE SCREW C.K HEAD SLOTTED 1. Standard: DIN, ANSI, GB 2. Material: Carbon Steel,stainless steel3.Size:All sizes can be supply 4.Package:25kg carton bulk,then pallets5.Delivery:30days after order placed