tantalum screw and bolts melting point: 5300 density: 16.6 g/ ... R05240 Size: M2 M4 M8 M10 M16Hlmet Co;Ltd. holds Tantalum ,Niobium as the dominant products in the scope of rare ... of their metals, sheet, tube, wire ,rod ,crucible , target ,alloy and so on.Tantalum features high melting point , low vapor pressure , good ...