TOPIN High-quality T-bolts are the guarantee of the safety of the buried system. Topin has its own professional design team, which is reasonable and rigorous in the design and manufacture of T-bolt.
Every time a product is manufactured, we go through rigorous performance tests, and only mass production will pass the test. This greatly increases the yield and stability of the product.
Our company provides high-strength carbon steel and stainless steel A2\A4 and other T-bolts. Common surface treatments: electro-galvanized, hot-dip galvanized and passivated. Can also be customized for non-standard products according to customer needs.
TOPIN-T-bolts are used in the exterior decoration of high-speed rail, underground pipeline corridors, factory building supports, elevator shafts, prefabricated buildings and office buildings.
| TOPIN-T BOLT | |||
| Type | Hook Bolt | Gear head Bolt | |
| TOPIN-T 40/22, 50/30, 52/34 | TOPIN-T38/23, 50/25, 53/34 | ||
| TOPIN-T BOLT Including:T-bolt,a flat washer,a spring washer and a nut |  |
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| Material | Galvanizing |  |
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| Hot dip galvanizing | |
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| A2 stainless steel | |
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| A4 stainless steel | |
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| Diameter Φ | M8-M30 | M10-M30 | |
| Length(mm) | 20-300 | ||
| TOPIN-T BOLT Strength | |||||||||||||||||||
| Bolt diameterΦ | M6 | M8 | M10 | M12 | M16 | M20 | M24 | M27 | M30 | ||||||||||
| Torque Tinst[Nm] | 3 | 8 | 15 | 25 | 40 | 120 | 200 | 300 | 380 | ||||||||||
| T-bolt(electro galvanized and hot galvanized) | |||||||||||||||||||
| strength grade | 4..6 | 8.8 | 4..6 | 8.8 | 4..6 | 8.8 | 4..6 | 8.8 | 4..6 | 8.8 | 4..6 | 8.8 | 4..6 | 8.8 | 4..6 | 8.8 | 4..6 | 8.8 | |
| Pull | NRd,sc[Kn] | 4 | 10.7 | 7.3 | 19.5 | 11.6 | 31 | 16.9 | 45 | 31.4 | 83.6 | 49 | 131 | 70.7 | 188 | 92 | 245 | 112 | 295 |
| Shear | VRd,sc[Kn] | 2.4 | 6.4 | 4.4 | 11.7 | 7 | 18.6 | 10.1 | 27 | 18.6 | 50.3 | 29.5 | 78.5 | 43 | 114 | 55.1 | 146 | 67.5 | 180 |
| BMD | MRd,sc[Kn] | 3.7 | 9.8 | 9 | 24 | 18 | 47.9 | 31.4 | 83.7 | 79.8 | 212 | 108 | 288 | 215 | 570 | 270 | 717 | 395 | 1055 |
| T-bolt(stainless steel) | |||||||||||||||||||
| strength grade | A2/A4 | A2/A4 | A2/A4 | A2/A4 | A2/A4 | A2/A4 | A2/A4 | A2/A4 | A2/A4 | ||||||||||
| 50 | 70 | 50 | 70 | 50 | 70 | 50 | 70 | 50 | 70 | 50 | 70 | 50 | 70 | 50 | 70 | 50 | 70 | ||
| Pull | NRd,sc[Kn] | 3.5 | 7.5 | 6.4 | 13.5 | 10.3 | 21.8 | 15 | 31.7 | 28.2 | 58.5 | 43 | 92 | 61 | 132 | 80.2 | 172 | 98.2 | 208 |
| Shear | VRd,sc[Kn] | 2.1 | 4.5 | 3.9 | 8.4 | 6.2 | 13.2 | 9 | 19 | 16.8 | 35.5 | 25.8 | 55.2 | 37.3 | 79.3 | 48.4 | 103 | 58.5 | 125 |
| BMD | MRd,sc[Kn] | 3.2 | 6.9 | 7.85 | 17 | 15.7 | 33.5 | 27.8 | 58.5 | 69.2 | 149 | 94.3 | 203 | 187 | 401 | 235 | 503 | 349 | 749 |
