HEX SOCKET KEYS
LONG ARM SERIES
All Dimensions in Millimeters
Nom.
 Key
Size		 Hex. Width
Across flats		 Length of
Short Arm		 Length of
Long Arm		 Torsional Shear
 Strength Min.		 Torsional Yield
Strength Min.
Max. Min. Max. Min. Max. Min. N.m In.lbs N.m In.lbs
0.7 0.711 0.698 8 3 69 63 0.13 1.2 0.12 1.1
0.9 0.899 0.876 11 6 71 65 0.27 2.4 0.24 2.1
1.3 1.270 1.244 12 11 75 69 0.79 7.0 0.68 6.0
1.5 1.500 1.470 14 13 78 76 1.20 10.5 1.02 9.0
2 2.000 1.970 16 15 83 81 3.0 26.5 2.7 24.0
2.5 2.500 2.470 18 17 90 87 6.2 55 5.4 48
3 3.000 2.960 20 18 100 97 10.5 93 9.1 80
4 4.000 3.960 25 23 106 102 24.9 220 21.7 190
5 5.000 4.960 28 26 118 114 48.8 430 42.5 375
6 6.000 5.950 32 30 140 136 83.5 740 72.8 645
8 8.000 7.950 36 34 160 155 199 1.760 173 1.530
10 10.000 9.950 40 38 170 164 386 3.420 336 2.970
12 12.000 11.950 45 43 212 206 634 5.610 551 4.880
14 14.000 13.930 56 53 236 229 995 8.880 867 7.770
17 17.000 16.930 63 60 250 242 1710 15.100 1490 13.200
19 19.000 18.930 70 67 280 271 2380 21.000 2070 18.300