ASME/ANSI B18.6.1-4-1981
切螺纹式开槽半沉头木螺钉 表4
Cut screw type slotted semi sinking head wood screw-Table 4
ASME/ANSI B18.6.1-4-1991
切螺纹式开槽半沉头木螺钉 表4
Cut screw type slotted semi sinking head wood screw-Table 4
ASME/ANSI B18.6.1-4-1997
切螺纹式开槽半沉头木螺钉 表4
Cut screw type slotted semi sinking head wood screw-Table 4