This standard covers data for slotted and recessed head tapping screws, metallic drive screws, protrusion gaging, across corners gaging, penetration and wobble gaging.
ASME B18.6.4-1998(R2005) history
0000 ASME B18.6.4-1998(R2005)
1999ASME B18.6.4-1999 Thread Forming And Thread Cutting Tapping Screws And Metallic Drive Screws, Inch Series
1998ASME B18.6.4-1998 Thread Forming and Thread Cutting Tapping Screws and Metallic Drive Screws (Inch Series) [Superseded: SAE J478A]
1981ASME B18.6.4-1981 Thread forming and thread cutting tapping screws and metallic drive screws (Inch series)
1966ASME B18.6.4-1966 Thread Forming and Thread Cutting Tapping Screws and Metallic Drive Screws, Inch Series