Brass Nuts & Washers
Castle Hex Nuts
Materials Include :
18-8 ss, 316 ss, 400 series ss, Brass, Silicone Bronze, Monel, Carbon Steels, Alloy Steels, Aluminum.
Finishes Include :
Zinc, Cadmium, Nickel Silver & Chrome Plating, Black Oxide, Anodize, Passivation and Heat Treating.
Castle nuts are similar to a slotted nut with the following exception: the slots are cut into the cylindrical part which is equal in length to the slot depth and slightly smaller in diameter the width hexadecimal.
The slots are for inserting a pin to secure the nut when used with Perforated s closing stem.
The castle styles are both drilled and slotted design with interchangeable now the preferred style.
| Castle Hex Nuts | ANSI B18.2.2 | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Nominal Size or Basic Major Diameterof Thread |
F | G | H | T | S | R | W | Runout of Bearing Surface | |||||||||
| Width Across Flats | Width Across Corners | Thickness | Unslotted Thickness and Height of Flat | Width of Slots | Radius of Filet | Diam of Cylindre. | |||||||||||
| Basic | Max | Min | Max | Min | Basic | Max | Min | Nom | Max | Min | Max | Min | + 0.01 | Min | Max | ||
| 1/4" | 0.2500 | 7/16" | 0.438 | 0.428 | 0.505 | 0.488 | 9/32" | 0.288 | 0.274 | 3/16" | 0.200 | 0.180 | 0.100 | 0.070 | 0.094 | 0.371 | 0.015 |
| 5/16" | 0.3125 | 1/2" | 0.500 | 0.489 | 0.577 | 0.557 | 21/64" | 0.336 | 0.320 | 15/64" | 0.240 | 0.220 | 0.120 | 0.090 | 0.094 | 0.425 | 0.016 |
| 3/8" | 0.3750 | 9/16" | 0.562 | 0.551 | 0.650 | 0.628 | 13/32" | 0.415 | 0.398 | 9/32" | 0.290 | 0.270 | 0.150 | 0.120 | 0.094 | 0.478 | 0.017 |
| 7/16" | 0.4375 | 11/16" | 0.688 | 0.675 | 0.794 | 0.768 | 29/64" | 0.463 | 0.444 | 19/64" | 0.310 | 0.290 | 0.150 | 0.120 | 0.094 | 0.582 | 0.018 |
| 1/2" | 0.5000 | 3/4" | 0.750 | 0.736 | 0.866 | 0.840 | 9/16" | 0.573 | 0.552 | 13/32" | 0.420 | 0.400 | 0.180 | 0.150 | 0.125 | 0.637 | 0.019 |
| 9/16" | 0.5625 | 7/8" | 0.875 | 0.861 | 1.010 | 0.982 | 39/64" | 0.621 | 0.598 | 27/64" | 0.430 | 0.410 | 0.180 | 0.150 | 0.156 | 0.744 | 0.020 |
| 5/8" | 0.6250 | 15/16" | 0.938 | 0.922 | 1.083 | 1.051 | 23/32" | 0.731 | 0.706 | 1/2" | 0.510 | 0.490 | 0.240 | 0.180 | 0.156 | 0.797 | 0.021 |
| 3/4" | 0.7500 | 1-1/8" | 1.125 | 1.088 | 1.299 | 1.240 | 13/16" | 0.827 | 0.798 | 9/16" | 0.570 | 0.550 | 0.240 | 0.180 | 0.188 | 0.941 | 0.023 |
| 7/8" | 0.8750 | 1-5/16" | 1.312 | 1.269 | 1.516 | 1.447 | 29/32" | 0.922 | 0.890 | 21/32" | 0.670 | 0.640 | 0.240 | 0.180 | 0.188 | 1.097 | 0.025 |
| 1" | 1.0000 | 1-1/2" | 1.500 | 1.450 | 1.732 | 1.653 | 1" | 1.018 | 0.982 | 23/32" | 0.730 | 0.700 | 0.300 | 0.240 | 0.188 | 1.254 | 0.027 |
| 1-1/8" | 1.1250 | 1-11/16" | 1.688 | 1.631 | 1.949 | 1.859 | 1-5/32" | 1.176 | 1.136 | 13/16" | 0.830 | 0.800 | 0.330 | 0.240 | 0.250 | 1.411 | 0.030 |
| 1-1/4" | 1.2500 | 1-7/8" | 1.875 | 1.812 | 2.165 | 2.066 | 1-1/4" | 1.272 | 1.228 | 7/8" | 0.890 | 0.860 | 0.400 | 0.310 | 0.250 | 1.570 | 0.033 |
| 1-3/8" | 1.3750 | 2-1/16" | 2.062 | 1.994 | 2.382 | 2.273 | 1-3/8" | 1.399 | 1.351 | 1" | 1.020 | 0.980 | 0.400 | 0.310 | 0.250 | 1.726 | 0.036 |
| 1-1/2" | 1.5000 | 2-1/4" | 2.250 | 2.175 | 2.598 | 2.480 | 1-1/2" | 1.526 | 1.474 | 1-1/16" | 1.080 | 1.040 | 0.460 | 0.370 | 0.250 | 1.881 | 0.039 |