Standard: BS 4174 BT
Choose material:
Please select a size below for further information and 3D Model
| Size | 2.9mm | 3.5mm | 4.2mm | 4.8mm |
|---|---|---|---|---|
| 6.5mm | Preferred | |||
| 8mm | Preferred | Non-Preferred | ||
| 9.5mm | Non-Preferred | Preferred | Non-Preferred | Preferred |
| 11mm | Preferred | Preferred | ||
| 13mm | Preferred | Preferred | Preferred | Non-Preferred |
| 16mm | Preferred | Preferred | Preferred | Preferred |
| 19mm | Non-Preferred | Preferred | Preferred |
| Size | No. 4 | No. 6 | No.8 | No. 10 |
|---|---|---|---|---|
| 1/4" | Preferred | |||
| 5/16" | Preferred | Non-Preferred | ||
| 3/8" | Non-Preferred | Preferred | Non-Preferred | Preferred |
| 7/16" | Preferred | Preferred | ||
| 1/2" | Preferred | Preferred | Preferred | Non-Preferred |
| 5/8" | Preferred | Preferred | Preferred | Preferred |
| 3/4" | Non-Preferred | Preferred | Preferred |