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: BrassOuter Thread Dia: 8mm/0.3"Inner Thread Dia: 5mm/0.2"Overall Length: 10mm/0.4"Main Color: Brass ToneGroove Size: 2.5 x 4mm/0.1" x 0.16"(W*H)Package Content:10pcs x Self Tapping Threaded Insert
