Important: the hexagon sizes shown in the tables should be used as a guide only. Individual sizes should be checked before specifying any equipment.
Use only Heavy Duty Impact Sockets for power driven torquing equipment, according to ISO2725 and ISO1174, DIN3129 and DIN3121 or ASME-B107.2/1995.
| METRIC SIZES | ||
 Thread Size D (mm) |
 Hexagon Size S (mm) |
 Hexagon Size J (mm) |
| M 10 | 17 | 8 |
| M 12 | 19 | 10 |
| M 14 | 22 | 12 |
| M 16 | 24 | 14 |
| M 18 | 27 | 14 |
| M 20 | 30 | 17 |
| M 22 | 32 | 17 |
| M 24 | 36 | 19 |
| M 27 | 41 | 19 |
| M 30 | 46 | 22 |
| M 33 | 50 | 24 |
| M 36 | 55 | 27 |
| M 39 | 60 | 27 (30) |
| M 42 | 65 | 32 |
| M 45 | 70 | – |
| M 48 | 75 | 36 |
| M 52 | 80 | 36 |
| M 56 | 85 | 41 |
| M 60 | 90 | 46 |
| M 64 | 95 | 46 |
| M 68 | 100 | 50 |
| M 72 | 105 | 55 |
| M 76 | 110 | 60 |
| M 80 | 115 | 65 |
| M 85 | 120 | 70 |
| M 90 | 130 | 70 (75) |
| M 95 | 135 | – |
| M 100 | 145 | 85 |
| M 105 | 150 | – |
| M 110 | 155 | – |
| M 115 | 165 | – |
| M 120 | 170 | – |
| M 125 | 180 | – |
| M 130 | 185 | – |
| M 140 | 200 | – |
| M 150 | 210 | – |
| IMPERIAL SIZES | ||
Thread Size D (inch) |
Hexagon Size S * (inch) |
Hexagon Size J (inch) |
| 5/8″ | 1 1/16″ | 1/2″ |
| 3/4″ | 1 1/4″ | 5/8″ |
| 7/8″ | 1 7/16″ | 3/4″ |
| 1″ | 1 5/8″ | 3/4″ |
| 1 1/8″ | 1 13/16″ | 7/8″ |
| 1 1/4″ | 2″ | 7/8″ |
| 1 3/8″ | 2 3/16″ | 1″ |
| 1 1/2″ | 2 3/8″ | 1″ |
| 1 5/8″ | 2 9/16″ | – |
| 1 3/4″ | 2 3/4″ | 1 1/4″ |
| 1 7/8″ | 2 15/16″ | 1 3/8″ |
| 2″ | 3 1/8″ | 1 5/8″ |
| 2 1/4″ | 3 1/2″ | 1 3/4″ |
| 2 1/2″ | 3 7/8″ | 1 7/8″ |
| 2 3/4″ | 4 1/4″ | 2″ |
| 3″ | 4 5/8″ | 2 1/4″ |
| 3 1/4″ | 5″ | 2 1/4″ |
Our Valve training packages are run by our Valve and Process Manager Iain Garvin. With a passion to share his 30+ years technical experience across a wide range of applications Iain has developed basic training courses for entry level students explaining valve types and their basic functions, right through to complex severe service valve applications. All courses include practical examples from Iain’s experience and relevant case studies ensuring you are gain the maximum benefit. There is also time for a QA session at the end of each session. We look forward to meeting you and your team, and hope you enjoy the courses.
Our team provides fast, efficient response to any enquiries, supplemented by 24/7 support for urgent assistance.*
