The BM 3X 6 with Phillips large flat head machine screws ROHS manufactured by Shuntian is an electronic fastener used in a variety of applications. It is a type of self-tapping screw that has a Phillips head for driving and a metal (usually steel) stem with a sharp point for cutting threads into the substrate. It is compliant with the Restriction of Hazardous Substances (RoHS2) directive that restrict the use of hazardous materials, such as lead, in electronic components. The BM 3X 6 has a 3 mm major diameter, a 6 mm length, and a class 5.5 thread pitch.