| Bolts Pitch: | 2.50P |
| Threads Per Inch: | 10.1 |
| Bolts Diameter: | M20 |
| Bolts Material: | A2 Stainless Steel |
| Finish: | Stainless Steel |
| Head Type: | Hex Head |
| Thread Type: | Metric Coarse |
| Length Under Head: | 85mm |
| Spanner Size: | 30mm |
| Tapping Drill Size: | 17.5mm |
M20 bolts have a 20mm thread diameter and a standard coarse pitch of 2.5mm. A large-diameter size used in structural steel connections, heavy anchoring, plant and large timber work.