Self-drilling hollow bars
- Steel used: reference standard EN 10210-1;
- Kind of threading: reference standard ISO 10208;
- Available lenghts: standard (6 mt / 3 mt), upon request 1 – 1.5 – 2 – 4 mt. bars
- Galvanization (zinc coating): upon request, reference standardUNI EN ISO 1461
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Self-drilling hollow bars specifications
| Type of bar | R 28 | R 32L | R 32P | R 38 | R 51 |
|---|---|---|---|---|---|
| External diameter (mm.)* | 28 | 32 | 32 | 38 | 51 |
| Internal diameter (mm.)* | 16 | 19 | 15 | 19 | 30 |
| Medium section (mmq.)* | 340 | 420 | 530 | 800 | 1200 |
| Weight/meter (Kg.)** | 2.9 | 3.3 | 4.3 | 6.2 | 9.0 |
| Breaking load (KN)** | 230 | 280 | 360 | 500 | 800 |
| Yield load (KN)*** | 170 | 220 | 300 | 400 | 600 |
*reference values
** average load values
***minimum load values guaranteed
Accessories for self-drilling hollow bars
| System | R 28 | R 32L | R 32P | R 38 | R 51 |
|---|---|---|---|---|---|
| Bit (mm.) | 41-51 | 51-76 | 51-76 | 76-90 | 90-114 |
| Sleeve | 37×120 | 41×140 | 41×160 | 54×190 | 70×200 |
| Nut (mm.) | 41×45 | 46×50 | 46×50 | 55×70 | 65×70 |
| Plate (mm.) | 150x150x8 | 150x150x8/10 | 150x150x8/10 | 200x200x10 | 200x200x10 |
| Plate (mm.) | 200x200x10 | 200x200x10 | 200x200x12 | 200x200x20 |
