ISO 7380 Button Head Sockets G2007/05/24
| Nominal Screw Diameter and Thread Pitch | A | H | S | J | T | ||
| Head Diameter | Head Height | Head Side Height | Hexagon Socket Size | Key Engagement | |||
| Min. | Max. | Min. | Max. | Ref. | Nom. | Min. | |
| M3 x 0.5 | 5.40 | 5.70 | 1.43 | 1.65 | 0.38 | 2.0 | 1.04 |
| M4 x 0.7 | 7.24 | 7.60 | 1.95 | 2.20 | 0.38 | 2.5 | 1.30 |
| M5 x 0.8 | 9.14 | 9.50 | 2.50 | 2.75 | 0.50 | 3.0 | 1.56 |
| M6 x 1 | 10.07 | 10.50 | 3.00 | 3.30 | 0.80 | 4.0 | 2.08 |
| M8 x 1.25 | 13.57 | 14.00 | 4.05 | 4.40 | 0.80 | 5.0 | 2.60 |
| M10 x 1.5 | 17.07 | 17.50 | 5.20 | 5.50 | 0.80 | 6.0 | 3.12 |
| M12 x 1.75 | 20.48 | 21.00 | 6.24 | 660 | 0.80 | 8.0 | 4.16 |
| M16 x 2 | 27.48 | 28.00 | 8.44 | 8.80 | 1.5 | 10.0 | 5.20 |
| Nominal Screw Diameter and Thread Pitch | G | B | E | F | L | |
| Wall Thickness | Under Head Fillet | Maximum Standard Length | ||||
| Transition Diameter | Transition Length | Juncture Radius | ||||
| Min. | Min. | Max. | Max. | Min. | Nom | |
| M3 x 0.5 | 0.20 | 3.2 | 3.6 | 0.51 | 0.10 | 12 |
| M4 x 0.7 | 0.30 | 4.4 | 4.7 | 0.60 | 0.20 | 20 |
| M5 x 0.8 | 0.38 | 5.4 | 5.7 | 0.60 | 0.20 | 30 |
| M6 x 1 | 0.74 | 6.5 | 6.8 | 0.68 | 0.25 | 30 |
| M8 x 1.25 | 1.05 | 8.8 | 9.2 | 1.02 | 0.40 | 40 |
| M10 x 1.5 | 1.45 | 10.8 | 11.2 | 1.02 | 0.40 | 40 |
| M12 x 1.75 | 1.63 | 13.2 | 14.2 | 1.87 | 0.60 | 60 |
| M16 x 2 | 2.25 | 17.2 | 18.2 | 1.87 | 0.60 | 60 |
***All information is strictly informative***
