Table N1 | ||||||
|---|---|---|---|---|---|---|
| Nut Size | Hex Nut | Heavy Hex Nut | ||||
| A | B (min) | C | A | B (min) | C | |
| 1/4" | 7/16 | 0.488 | 7/32 | 1/2 | 0.556 | 15/64 |
| 5/16" | 1/2 | 0.557 | 17/64 | 9/16 | 0.622 | 19/64 |
| 3/8" | 9/16 | 0.628 | 21/64 | 11/16 | 0.763 | 23/64 |
| 7/16" | 11/16 | 0.794 | 3/8 | 3/4 | 0.830 | 27/64 |
| 1/2" | 3/4 | 0.840 | 7/16 | 7/8 | 0.969 | 31/64 |
| 9/16" | 7/8 | 0.982 | 31/64 | 15/16 | 1.037 | 35/64 |
| 5/8" | 15/16 | 1.051 | 35/64 | 1-1/16 | 1.175 | 39/64 |
| 3/4" | 1-1/8 | 1.240 | 41/64 | 1-1/4 | 1.382 | 47/64 |
| 7/8" | 1-5/16 | 1.447 | 3/4 | 1-7/16 | 1.589 | 55/64 |
| 1" | 1-1/2 | 1.653 | 55/64 | 1-5/8 | 1.796 | 63/64 |
| 1-1/8" | 1-11/16 | 1.859 | 31/32 | 1-13/16 | 2.002 | 1-7/64 |
| 1-1/4" | 1-7/8 | 2.273 | 1-1/16 | 2 | 2.209 | 1-7/32 |
| 1-3/8" | 2-1/16 | 2.273 | 1-11/64 | 2-3/16 | 2.416 | 1-11/32 |
| 1-1/2" | 2-1/4 | 2.480 | 1-9/32 | 2-3/8 | 2.622 | 1-15/32 |
| 1-5/8" | 2-9/16 | 2.828 | 1-19/32 | |||
| 1-3/4" | 2-3/4 | 3.035 | 1-23/32 | |||
| 1-7/8" | 2-15/16 | 3.242 | 1-27/32 | |||
| 2" | 3-1/8 | 3.449 | 1-31/32 | |||
| 2-1/4" | 3-1/2 | 3.862 | 2-13/64 | |||
| 2-1/2" | 3-7/8 | 4.275 | 2-29/64 | |||
| 2-3/4" | 4-1/4 | 4.688 | 2-45/64 | |||
| 3" | 4-5/8 | 5.102 | 2-61/64 | |||
| 3-1/4" | 5 | 5.515 | 3-3/16 | |||
| 3-1/2" | 5-3/8 | 5.928 | 3-7/16 | |||
| 3-3/4" | 5-3/4 | 6.341 | 3-11/16 | |||
| 4" | 6-1/8 | 6.755 | 3-15/16 | |||
Table N2 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Nut Size | Hex Jam Nut | Heavy Hex Jam Nut | ||||||||||
| A | B (min) | D | A | B (min) | D | |||||||
| 1/4" | 7/16 | 0.488 | 5/32 | 1/2 | 0.556 | 11/64 | ||||||
| 5/16" | 1/2 | 0.557 | 3/16 | 9/16 | 0.622 | 13/64 | ||||||
| 3/8" | 9/16 | 0.628 | 7/32 | 11/16 | 0.763 | 15/64 | ||||||
| 7/16" | 11/16 | 0.768 | 1/4 | 3/4 | 0.830 | 17/64 | ||||||
| 1/2" | 3/4 | 0.840 | 5/16 | 7/8 | 0.969 | 19/64 | ||||||
| 9/16" | 7/8 | 0.982 | 5/16 | 15/16 | 1.037 | 21/64 | ||||||
| 5/8" | 15/16 | 1.051 | 3/8 | 1-1/16 | 1.175 | 23/64 | ||||||
| 3/4" | 1-1/8 | 1.240 | 27/64 | 1-1/4 | 1.382 | 27/64 | ||||||
| 7/8" | 1-5/16 | 1.447 | 31/64 | 1-7/16 | 1.589 | 31/64 | ||||||
| 1" | 1-1/2 | 1.653 | 35/64 | 1-5/8 | 1.796 | 35/64 | ||||||
| 1-1/8" | 1-11/16 | 1.859 | 39/64 | 1-13/16 | 2.002 | 39/64 | ||||||
| 1-1/4" | 1-7/8 | 2.066 | 23/32 | 2 | 2.209 | 23/32 | ||||||
| 1-3/8" | 2-1/16 | 2.273 | 25/32 | 2-3/16 | 2.416 | 25/32 | ||||||
| 1-1/2" | 2-1/4 | 2.480 | 27/32 | 2-3/8 | 2.622 | 27/32 | ||||||
| 1-5/8" | 2-9/16 | 2.828 | 29/32 | |||||||||
| 1-3/4" | 2-3/4 | 3.035 | 31/32 | |||||||||
| 1-7/8" | 2-15/16 | 3.242 | 1-1/32 | |||||||||
| 2" | 3-1/8 | 3.449 | 1-3/32 | |||||||||
| 2-1/4" | 3-1/2 | 3.862 | 1-13/64 | |||||||||
| 2-1/2" | 3-7/8 | 4.275 | 1-29/64 | |||||||||
| 2-3/4" | 4-1/4 | 4.688 | 1-37/64 | |||||||||
| 3" | 4-5/8 | 5.102 | 1-45/64 | |||||||||
| 3-1/4" | 5 | 5.515 | 1-13/16 | |||||||||
| 3-1/2" | 5-3/8 | 5.928 | 1-15/16 | |||||||||
| 3-3/4" | 5-3/4 | 6.341 | 2-1/16 | |||||||||
| 4" | 6-1/8 | 6.755 | 2-3/16 | |||||||||
For Hot-dipped Galvanized Nuts
Table N3FOR HOT-DIPPED GALVANIZED NUTS | |||
|---|---|---|---|
| Size & Thread Pitch | Diametral Allowance | Pitch Diameter | |
| min | max | ||
| 1/4"-20 | 0.016 | 0.2335 | 0.2384 |
| 5/16"-18 | 0.017 | 0.2934 | 0.2987 |
| 3/8"-16 | 0.017 | 0.3514 | 0.3571 |
| 7/16"-14 | 0.018 | 0.4091 | 0.4152 |
| 1/2"-13 | 0.018 | 0.4680 | 0.4745 |
| 9/16"-12 | 0.020 | 0.5284 | 0.5352 |
| 5/8"-11 | 0.020 | 0.5860 | 0.5932 |
| 3/4"-10 | 0.020 | 0.7050 | 0.7127 |
| 7/8"-9 | 0.022 | 0.8248 | 0.8330 |
| 1"-8 | 0.024 | 0.9428 | 0.9516 |
| 1-1/8"-8 | 0.024 | 1.0678 | 1.0768 |
| 1-1/8"-7 | 0.024 | 1.0562 | 1.0656 |
| 1-1/4"-8 | 0.024 | 1.1928 | 1.2020 |
| 1-1/4"-7 | 0.024 | 1.1812 | 1.1908 |
| 1-3/8"-8 | 0.027 | 1.3208 | 1.3301 |
| 1-3/8"-6 | 0.027 | 1.2937 | 1.3041 |
| 1-1/2"-8 | 0.027 | 1.4458 | 1.4553 |
| 1-1/2"-6 | 0.027 | 1.4187 | 1.4292 |
| 1-3/4"-5 | 0.050 | 1.6701 | 1.6817 |
| 2"-4.5 | 0.050 | 1.9057 | 1.9181 |
| 2-1/4"-4.5 | 0.050 | 2.1557 | 2.1683 |
| 2-1/2"-4 | 0.050 | 2.3876 | 2.4011 |
| 2-3/4"-4 | 0.050 | 2.6376 | 2.6513 |
| 3"-4 | 0.050 | 2.8876 | 2.9015 |
| 3-1/4"-4 | 0.050 | 3.1376 | 3.1517 |
| 3-1/2"-4 | 0.050 | 3.3876 | 3.4019 |
| 3-3/4"-4 | 0.050 | 3.6376 | 3.6521 |
| 4"-4 | 0.050 | 3.8876 | 3.9023 |
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