ANSI/ASTM A120 SOCKETS STANDARD
   
ND inch 1/8" 1/4" 3/8" 1/2" 3/4" 1" 1.1/4" 1.1/2" 2" 2.1/2" 3" 4" 5" 6" 8" 10" 12"
mm 6 8 10 15 20 25 32 40 50 65 80 100 125 150 200 250 300
OUTSIDE DIAMETER(min) mm 14.30 18.26 22.23 27.00 33.35 40.03 48.26 55.88 69.85 82.55 101.6 127 159.9 187.7 244.48 298.45 355.6
LENGTH(min) mm 19.05 28.58 28.58 38.1 39.68 49.21 50.8 50.8 52.39 77.79 79.37 87.31 93.66 125.41 133.40 146.00 156