ASME B18.2.2 Thick Slotted Hex Nuts

ASME B18.2.2 Thick Slotted Hex Nuts

Dimensions of Thick Slotted Hex Nuts

Nominial Size Basic Major Diameter of Thread Width Across Flats, F Width Across Corners, G Thickness, H Unslotted Thickness, T Width of Slot, S Maximum Runout of Bearing Surface to Thread Axis, FLM
Basic Min. Max. Min. Max. Basic Min. Max. Min. Max. Min. Max.
1/4 0.2500 7/16 0.428 0.438 0.488 0.505 9/32 0.274 0.288 0.180 0.20 0.07 0.10 0.015
5/16 0.3125 1/2 0.489 0.500 0.557 0.577 21/64 0.320 0.336 0.220 0.240 0.09 0.12 0.016
3/8 0.3750 9/16 0.551 0.562 0.628 0.650 13/32 0.398 0.415 0.270 0.290 0.12 0.15 0.017
7/16 0.4375 11/16 0.675 0.688 0.768 0.794 29/64 0.444 0.463 0.290 0.310 0.12 0.15 0.018
1/2 0.5000 3/4 0.736 0.750 0.840 0.866 9/16 0.552 0.573 0.400 0.420 0.15 0.18 0.019
9/16 0.5625 7/8 0.861 0.875 0.982 1.010 39/64 0.598 0.621 0.410 0.430 0.15 0.18 0.020
5/8 0.6250 15/16 0.922 0.938 1.051 1.083 23/32 0.706 0.731 0.490 0.510 0.18 0.24 0.021
3/4 0.7500 1 1/8 1.088 1.125 1.240 1.299 13/16 0.798 0.827 0.550 0.570 0.18 0.24 0.023
7/8 0.8750 1 5/16 1.269 1.312 1.447 1.516 29/32 0.890 0.922 0.640 0.670 0.18 0.24 0.025
1 1.0000 1 1/2 1.450 1.500 1.653 1.732 1 0.982 1.018 0.700 0.730 0.24 0.30 0.027
1 1/8 1.1250 1 11/16 1.631 1.688 1.859 1.949 1 5/32 1.136 1.176 0.800 0.830 0.24 0.33 0.030
1 1/4 1.2500 1 7/8 1.812 1.875 2.066 2.165 1 1/4 1.228 1.272 0.860 0.890 0.31 0.40 0.033
1 3/8 1.3750 2 1/16 1.994 2.062 2.273 2.382 1 3/8 1.351 1.399 0.980 1.020 0.31 0.40 0.036
1 1/2 1.5000 2 1/4 2.175 2.250 2.480 2.598 1 1/2 1.474 1.526 1.040 1.080 0.37 0.46 0.039