More complete hole diameter comparison table of screw tapping drill, high-definition chart, pay close attention to t

　　Standard metric nut tapping needs to drill a hole smaller than the thread diameter to tap. The size of this hole is from the thread minor diameter to the thread middle diameter.In the eyes of industry experts, bolt Indeed, it has great development potential, which makes many investors more interested. https://www.hengkefasteners.com/

　　How to confirm the aperture size depends on the comparison table!