
| Overall length | Thread length | Thread + Neck length | Shank length | Shank dia. | Size of square | Length of square |
| L | ℓ | ℓn | ℓs | Ds | K | ℓk |
| Size | Class | Code | Chamfer | L (inch) | ℓ (inch) | ℓn (inch) | ℓs (inch) | Ds (inch) | K (inch) | ℓk (inch) | Lobe | TYPE |
| 7/16-14UNC | H9 | 5111103098 | 2P | 3.937 | 0.512 | - | 2.008 | 0.323 | 0.242 | 0.406 | 8 | 3 |
| 7/16-20UNF | H8 | 5110103101 | 4P | 3.937 | 0.512 | - | 2.008 | 0.323 | 0.242 | 0.406 | 8 | 3 |
| 7/16-20UNF | H8 | 5111103101 | 2P | 3.937 | 0.512 | - | 2.008 | 0.323 | 0.242 | 0.406 | 8 | 3 |
| 1/2-13UNC | H9 | 5110103111 | 4P | 4.331 | 0.591 | - | 2.205 | 0.367 | 0.275 | 0.437 | 8 | 3 |
| 1/2-13UNC | H9 | 5111103111 | 2P | 4.331 | 0.591 | - | 2.205 | 0.367 | 0.275 | 0.437 | 8 | 3 |
| 1/2-20UNF | H8 | 5110103115 | 4P | 4.331 | 0.591 | - | 2.205 | 0.367 | 0.275 | 0.437 | 8 | 3 |
| 1/2-20UNF | H8 | 5111103115 | 2P | 4.331 | 0.591 | - | 2.205 | 0.367 | 0.275 | 0.437 | 8 | 3 |
| 9/16-12UNC | H10 | 5110103126 | 4P | 4.331 | 0.709 | - | 2.205 | 0.429 | 0.322 | 0.5 | 8 | 3 |
| 9/16-12UNC | H10 | 5111103126 | 2P | 4.331 | 0.709 | - | 2.205 | 0.429 | 0.322 | 0.5 | 8 | 3 |
| 9/16-18UNF | H9 | 5110103129 | 4P | 4.331 | 0.709 | - | 2.205 | 0.429 | 0.322 | 0.5 | 8 | 3 |
| 9/16-18UNF | H9 | 5111103129 | 2P | 4.331 | 0.709 | - | 2.205 | 0.429 | 0.322 | 0.5 | 8 | 3 |
Number of oil grooves : 1/4 and smaller = 5, 5/16 = 6, 3/8 and larger = 8 For 1/4 and smaller, external centers of 2P chamfer taps are removed.