标 准 编 号：SAE AS 8879D-2004 简体中文标题：螺纹-UNJ牙形,牙底圆弧半径加大并受控的米制螺纹繁体中文标题：螺纹-UNJ牙形,牙底圆弧半径加大并受控的米制螺纹English Name：Screw Threads - UNJ Profile, Inch Controlled Radius Root with Increased Minor Diameter ...