用于檢驗(yàn)普通外螺紋,采用高級(jí)合金工具鋼制造,經(jīng)淬火硬化處理并精研。螺紋直徑螺距環(huán)規(guī)外徑環(huán)規(guī)外徑精度等級(jí)通端止端M3-M100.518-284-63-53h4h、4h、5h4h、5h6h、6h、7h6h、8h、5g6g、6g、7g6g、8g、6f、6eM3.50.61845M40.72255M6-M760.7522-456-85-8M50.82255M6-M76122-1126-185-14M8-M121.2528-348-105-6M10-M1501.528-20010-226-16M121.7534127M14-M150234-20014-258-20