ASTM A194 Grade 2H Slotted Castle Nuts B18.2.2

High Temperature Carbon Steel Nuts

Slotted Castle Nuts B18.2.2

Slotted Castle Nuts B18.2.2

Dimensions of Slotted Castle Nuts B18.2.2

Nominal Size
Inch		 Basic Major
Thread Diameter		 Width Across Flats, F Width Across Corners, G Thickness, H Unslotted Thickness, T Width of Slot, S
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 7/32 0.212 0.226 0.120 0.140 0.07 0.10
5/16 0.3125 1/2 0.489 0.500 0.557 0.577 17/64 0.258 0.273 0.160 0.180 0.09 0.12
3/8 0.3750 9/16 0.551 0.562 0.628 0.650 21/64 0.320 0.337 0.190 0.210 0.12 0.15
7/16 0.4375 11/16 0.675 0.688 0.768 0.794 3/8 0.365 0.385 0.210 0.230 0.12 0.15
1/2 0.5000 3/4 0.736 0.750 0.840 0.866 7/16 0.427 0.448 0.270 0.290 0.15 0.18
9/16 0.5625 7/8 0.861 0.875 0.982 1.010 31/64 0.473 0.496 0.290 0.310 0.15 0.18
5/8 0.6250 15/16 0.922 0.938 1.051 1.083 35/64 0.535 0.559 0.320 0.340 0.18 0.24
3/4 0.7500 1 1/8 1.088 1.125 1.240 1.299 41/64 0.617 0.665 0.380 0.400 0.18 0.24
7/8 0.8750 1 5/16 1.269 1.312 1.447 1.516 3/4 0.724 0.776 0.490 0.520 0.18 0.24
1 1.0000 1 1/2 1.450 1.500 1.653 1.732 55/64 0.831 0.887 0.560 0.590 0.24 0.30
1 1/8 1.1250 1 11/16 1.631 1.688 1.859 1.949 31/32 0.939 0.999 0.610 0.640 0.24 0.33
1 1/4 1.2500 1 7/8 1.812 1.875 2.066 2.165 1 1/16 1.030 1.094 0.670 0.700 0.31 0.40
1 3/8 1.3750 2 1/1 1.994 2.062 2.273 2.382 1 11/64 1.138 1.206 0.780 0.820 0.31 0.40
1 1/2 1.5000 2 1/4 2.175 2.250 2.480 2.598 1 9/32 1.245 1.317 0.820 0.860 0.37 0.46