G1'' thread July 8, 2019 16 32 64 128 G1 thread dimensions G1 thread size G1 thread drill size G1 thread pitch G1 thread in mm G1 thread connection G1 thread size in mm G1 thread vs npt G1 thread dimensions pdf G1 thread meaning Thread g1 2 Thread g1 4 Thread g1 4 dimensions Thread g1 5