Hex Head Plug (Male SAE / MS Straight Thread)
| Male SAE / MSThread Size | Dimensions in mm | F-Hex(Inch) | Uniform ‘O’ Ring Size | Dawsons-TechPart No. | |
| P | B | L | |||
| 7/16 - 20 | 9.1 | 19.3 | 9/16 | -904 | HHPSAE-7 |
| 9/16 - 18 | 9.9 | 20.8 | 11/16 | -906 | HHPSAE-9 |
| 3/4 - 16 | 11.2 | 22.6 | 7/8 | -908 | HHPSAE-12 |
| 1-1/16 - 12 | 15.0 | 28.4 | 1-1/4 | -912 | HHPSAE-17 |
| 1-5/16 - 12 | 15.0 | 30.0 | 1-1/2 | -916 | HHPSAE-21 |