Features: The self tapping screw sleeve does not need to be tapped in advance, and can be directly screwed into the specific hole reserved for the base material. When installed using any one of a variety of manual or automatic tools they provide strong permanent internal threads which resist heat and corrosion. Once fitted their position is maintained by the action of radial pressure between their coils and the flanks of the tapped hole. Widely used in steam turbines, electronic communications, computers, lamps, mechanical equipment, radiators, and 3D prints equipment. Specification:Material: 304 Stainless SteelOuter Thread Dia: M4.5 x 0.5mmInner Thread Dia: M2.5 x 0.45mmOverall Length: 6mm/0.24"Main Color: Silver ToneSlot Depth: 2.3mm/0.09"Type: 303Package Content:10 x Self Tapping Threaded Insert
