United Exim engineering-style orthographic reference drawings are schematic and not to scale. Select a standard and size in the separate Thread & Dimension Lookup for dimensional values. Confirm the controlling standard and approved project drawing before manufacture.
Common ISO metric coarse reference values for the fastener sizes most often specified. Use the current standard for tolerances, corner radii, chamfers, thread limits and acceptance.
| Size | Pitch | Hex head s | Head k | ISO 4032 nut m | ISO 7089 ID d1 | Washer OD d2 | Washer t |
|---|---|---|---|---|---|---|---|
| M6 | 1 | 10 | 4 | 5.2 | 6.4 | 12 | 1.6 |
| M8 | 1.25 | 13 | 5.3 | 6.8 | 8.4 | 16 | 1.6 |
| M10 | 1.5 | 16 | 6.4 | 8.4 | 10.5 | 20 | 2 |
| M12 | 1.75 | 18 | 7.5 | 10.8 | 13 | 24 | 2.5 |
| M14 | 2 | 21 | 8.8 | 12.8 | 15 | 28 | 2.5 |
| M16 | 2 | 24 | 10 | 14.8 | 17 | 30 | 3 |
| M18 | 2.5 | 27 | 11.5 | 15.8 | 19 | 34 | 3 |
| M20 | 2.5 | 30 | 12.5 | 18 | 21 | 37 | 3 |
| M22 | 2.5 | 34 | 14 | 19.4 | 23 | 39 | 3 |
| M24 | 3 | 36 | 15 | 21.5 | 25 | 44 | 4 |
| M27 | 3 | 41 | 17 | 23.8 | 28 | 50 | 4 |
| M30 | 3.5 | 46 | 18.7 | 25.6 | 31 | 56 | 4 |
| M36 | 4 | 55 | 22.5 | 31 | 37 | 66 | 5 |
| M42 | 4.5 | 65 | 26 | 34 | 45 | 78 | 8 |
| M48 | 5 | 75 | 30 | 38 | 52 | 92 | 8 |
| M56 | 5.5 | 85 | 35 | 45 | 62 | 105 | 10 |
| M64 | 6 | 95 | 40 | 51 | 70 | 115 | 10 |
Reference rule: these sheets summarize common standards and United Exim supply capability. They are not substitutes for the current ISO/DIN/ASTM/IS standard, approved drawing or project specification.