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| MINING |
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| TUNNELING |
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| CONSTRUCTION INDUSTRY |
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RESIN AND EXPANSION BOLTS
Construction bolts
Intended use
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Bolts are designed for fastening statically loaded elements of building structures in non-cracked, reinforced or unreinforced gravel concrete of classes ≥ B15 and in clay solid brick wall, class ≥ 7,5.
Bolt types
| Name |
Bolt type |
| Resin bolt |
KWz-1 ; KWz-1j |
| Resin bolt |
KWz-2 ; KWz-2j |
| Resin bolt |
KWz-3 ; KWz-3j |
| Resin bolt |
KWw-1 ; KWw-1j |
| Resin bolt |
KWw-2 ; KWw-2j |
| Resin bolt |
KWw-3 ; KWw-3j |
| Resin wedge bolt |
KKWz-1 |
| Resin wedge bolt |
KKWw-1 |
| Expansion bolt |
KR-1 |
Technical description
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Bolt rods are made from the following bars:
- steel double-rib reinforcing bar of diameters from dn=6 to dn=25 mm according to PN-82/H-93215 standard made of 34GS steel, and steel single-rib reinforcing bar with dr=21,7 made of AP 600 steel according to ZN-95/AP-1 standard,
-plain steel bar of diameter from d=6 to d=24 mm made of St5 and 45 steel 2H13 and 2H14 stainless steel.
- Hexagonal nuts in accordance with PN-EN 24034.
- Round washers in accordance with PN-EN ISO 7091.
- Bolt wedges are made of St3Sx steel.
- When with coating: zinc plated (coating thickness: 10 ÷15 µm).
Technical data
| Rod diameter |
from ø6 to ø30 mm |
| Thread size |
from M6 to M30 |
| Rod length |
as needed |
Mechanical properties
| Steel grade |
Re min (MPa) |
Rm min (MPa) |
A5 min % |
| 34GS |
410 |
590 |
16 |
| AP 600 |
400 |
600 |
19 |
| St5 |
285 |
470 ÷ 640 |
20 |
| 45 |
335 |
600 |
19 |
| 2H13 ; 2H14 |
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Bolts have Technical Approval No. AT-15-4795/2001 issued by the BUILDING RESEARCH INSTITUTE in Warsaw.
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