| NTHC08DX | 1/2-13 2H A194 HEAVY HEX NUT STEEL PLAIN DOMESTIC |
| NTHC08G | 1/2-13 2H A194 HEAVY HEX NUT STEEL HOT DIP GALVANIZED |
| NTHC08X | 1/2-13 2H A194 HEAVY HEX NUT STEEL PLAIN |
| NTHC08Z | 1/2-13 2H A194 HEAVY HEX NUT STEEL ZINC |
| NTHC09X | 9/16-12 2H A194 HEAVY HEX NUT STEEL PLAIN |
| NTHC10DX | 5/8-11 2H A194 HEAVY HEX NUT STEEL PLAIN DOMESTIC |
| NTHC10G | 5/8-11 2H A194 HEAVY HEX NUT STEEL HOT DIP GALVANIZED |
| NTHC10X | 5/8-11 2H A194 HEAVY HEX NUT STEEL PLAIN |
| NTHC10Z | 5/8-11 2H A194 HEAVY HEX NUT STEEL ZINC |
| NTHC12DX | 3/4-10 2H A194 HEAVY HEX NUT STEEL PLAIN |
| NTHC12G | 3/4-10 2H A194 HEAVY HEX NUT STEEL HOT DIP GALVANIZED |
| NTHC12X | 3/4-10 2H A194 HEAVY HEX NUT STEEL PLAIN |
| NTHC12Z | 3/4-10 HEAVY HEX NUT STEEL ZINC |
| NTHC14DX | 7/8-9 2H A194 HEAVY HEX NUT STEEL PLAIN DOMESTIC |
| NTHC14G | 7/8-9 2H A194 HEAVY HEX NUT STEEL HOT DIP GALVANIZED |
| NTHC14X | 7/8-9 2H A194 HEAVY HEX NUT STEEL PLAIN |
| NTHC14Z | 7/8-9 2H A194 HEAVY HEX NUT STEEL ZINC |
| NTHC16DX | 1-8 2H A194 HEAVY HEX NUT STEEL PLAIN DOMESTIC |
| NTHC16G | 1-8 2H A194 HEAVY HEX NUT STEEL HOT DIP GALVANIZED |
| NTHC16X | 1-8 2H A194 HEAVY HEX NUT STEEL PLAIN |
| NTHC18G | 1 1/8-7 2H A194 2H HEAVY HEX NUT STEEL HOT DIP GALVANIZED |
| NTHC18X | 1 1/8-7 2H A194 HEAVY HEX NUT STEEL PLAIN |
| NTHC20DG | 1-1/4-7 2H A194 HEAVY HEX NUT STEEL HOT DIP GALVANIZED DOMESTIC |
| NTHC20X | 1 1/4-7 2H A194 HEAVY HEX NUT STEEL PLAIN |
| NTHC22G | 1 3/8-6 2H A194 HEAVY HEX NUT STEEL HOT DIP GALVANIZED |
| NTHC22X | 1 3/8-6 2H A194 HEAVY HEX NUT STEEL PLAIN |
| NTHC24X | 1 1/2-6 2H A194 HEAVY HEX NUT STEEL PLAIN |
| NTHC28X | 1 3/4-5 2H A194 HEAVY HEX NUT STEEL PLAIN |
| NTHC40X | 2 1/4-4.5 2H A194 HEAVY HEX NUT STEEL PLAIN |
| NTHC710X | 5/8-11 2H A194 GR7 HEAVY HEX NUT STEEL PLAIN |