ISO 7380-1 Hexagon Socket Button Head Screws
Dimensions for ISO 7380-1 Hexagon Socket Button Head Screws
Dimensions in mm, according to ISO 7380-1:2022.
| Thread d | Pitch P | Head diameter dk min–max | Head height k min–max | Socket s nom. | Socket e min | Socket depth t min–max |
|---|---|---|---|---|---|---|
| M3 | 0.50 | 5.40–5.70 | 1.40–1.65 | 2 | 2.30 | 1.04–1.20 |
| M4 | 0.70 | 7.24–7.60 | 1.95–2.20 | 2.5 | 2.87 | 1.30–1.65 |
| M5 | 0.80 | 9.14–9.50 | 2.50–2.75 | 3 | 3.44 | 1.56–2.12 |
| M6 | 1.00 | 10.07–10.50 | 3.00–3.30 | 4 | 4.58 | 2.08–2.26 |
| M8 | 1.25 | 13.57–14.00 | 4.10–4.40 | 5 | 5.72 | 2.60–3.05 |
| M10 | 1.50 | 17.07–17.50 | 5.20–5.50 | 6 | 6.86 | 3.12–3.75 |
| M12 | 1.75 | 20.48–21.00 | 6.24–6.60 | 8 | 9.15 | 4.16–4.61 |
| M16 | 2.00 | 27.48–28.00 | 8.44–8.80 | 10 | 11.43 | 5.20–6.19 |
ISO 7380-1 screws have reduced loadability due to the head and socket design. This page covers Part 1 (without flange); flanged screws are listed separately.