
ANSI AL-SP Spiral Fluted Taps for Aluminum
| Size | Class | Code | Chamfer | L (inch) | ℓ (inch) | ℓn (inch) | ℓs (inch) | Ds (inch) | K (inch) | ℓk (inch) | No. of flutes | TYPE |
| For Ui | nified Th | i reads | ||||||||||
| No.2-56UNC | GH2 | 386500M | 2.5P | 1.772 | 0.314 | - | 1.161 | 0.141 | 0.11 | 0.187 | 2 | 1 |
| No.4-40UNC | GH2 | 386501M | 2.5P | 2.205 | 0.354 | 0.709 | 1.28 | 0.141 | 0.11 | 0.187 | 2 | 2 |
| No.5-40UNC | GH2 | 386502M | 2.5P | 2.205 | 0.433 | 0.736 | 1.339 | 0.141 | 0.11 | 0.187 | 3 | 2 |
| No.6-32UNC | GH3 | 386503M | 2.5P | 2.205 | 0.433 | 0.748 | 1.339 | 0.141 | 0.11 | 0.187 | 3 | 2 |
| No.8-32UNC | GH3 | 386504M | 2.5P | 2.48 | 0.512 | 0.827 | 1.535 | 0.168 | 0.131 | 0.25 | 3 | 2 |
| No.10-24UNC | GH3 | 386505M | 2.5P | 2.756 | 0.551 | 0.945 | 1.654 | 0.194 | 0.152 | 0.25 | 3 | 2 |
| No.10-32UNF | GH3 | 386506M | 2.5P | 2.756 | 0.551 | 0.945 | 1.654 | 0.194 | 0.152 | 0.25 | 3 | 2 |
| 1/4-20UNC | GH3 | 386507M | 2.5P | 3.15 | 0.591 | 1.181 | 1.713 | 0.255 | 0.191 | 0.312 | 3 | 2 |
| 1/4-20UNC | GH5 | 386508M | 2.5P | 3.15 | 0.591 | 1.181 | 1.713 | 0.255 | 0.191 | 0.312 | 3 | 2 |
| 1/4-28UNF | GH3 | 386509M | 2.5P | 3.15 | 0.591 | 1.181 | 1.713 | 0.255 | 0.191 | 0.312 | 3 | 2 |
| 1/4-28UNF | GH4 | 386511M | 2.5P | 3.15 | 0.591 | 1.181 | 1.713 | 0.255 | 0.191 | 0.312 | 3 | 2 |
| 5/16-18UNC | GH3 | 386512M | 2.5P | 3.543 | 0.748 | 1.378 | 1.831 | 0.318 | 0.238 | 0.375 | 3 | 3 |
| 5/16-18UNC | GH5 | 386513M | 2.5P | 3.543 | 0.748 | 1.378 | 1.831 | 0.318 | 0.238 | 0.375 | 3 | 3 |
| 5/16-24UNF | GH3 | 386514M | 2.5P | 3.543 | 0.748 | 1.378 | 1.831 | 0.318 | 0.238 | 0.375 | 3 | 3 |
| 5/16-24UNF | GH4 | 386515M | 2.5P | 3.543 | 0.748 | 1.378 | 1.831 | 0.318 | 0.238 | 0.375 | 3 | 3 |
| 3/8-16UNC | GH3 | 386516M | 2.5P | 3.937 | 0.906 | 1.535 | 2.028 | 0.381 | 0.286 | 0.437 | 3 | 3 |
| 3/8-16UNC | GH5 | 386517M | 2.5P | 3.937 | 0.906 | 1.535 | 2.028 | 0.381 | 0.286 | 0.437 | 3 | 3 |
| 3/8-24UNF | GH3 | 386518M | 2.5P | 3.937 | 0.906 | 1.535 | 2.028 | 0.381 | 0.286 | 0.437 | 3 | 3 |
| 3/8-24UNF | GH4 | 386519M | 2.5P | 3.937 | 0.906 | 1.535 | 2.028 | 0.381 | 0.286 | 0.437 | 3 | 3 |
| 7/16-14UNC | GH3 | 386520M | 2.5P | 3.937 | 0.906 | - | 2.008 | 0.323 | 0.242 | 0.406 | 3 | 4 |
| 7/16-14UNC | GH5 | 386521M | 2.5P | 3.937 | 0.906 | - | 2.008 | 0.323 | 0.242 | 0.406 | 3 | 4 |
| 7/16-20UNF | GH3 | 386522M | 2.5P | 3.937 | 0.906 | - | 2.008 | 0.323 | 0.242 | 0.406 | 3 | 4 |
| 7/16-20UNF | GH5 | 386523M | 2.5P | 3.937 | 0.906 | - | 2.008 | 0.323 | 0.242 | 0.406 | 3 | 4 |
| 1/2-13UNC | GH3 | 386524M | 2.5P | 4.331 | 1.024 | - | 2.205 | 0.367 | 0.275 | 0.437 | 3 | 4 |
| 1/2-13UNC | GH5 | 386525M | 2.5P | 4.331 | 1.024 | - | 2.205 | 0.367 | 0.275 | 0.437 | 3 | 4 |
| 1/2-20UNF | GH3 | 386526M | 2.5P | 4.331 | 1.024 | - | 2.205 | 0.367 | 0.275 | 0.437 | 3 | 4 |
| 1/2-20UNF | GH5 | 386527M | 2.5P | 4.331 | 1.024 | - | 2.205 | 0.367 | 0.275 | 0.437 | 3 | 4 |