Grade 10.9S Torsion Shear Bolt
- National standard code：GB/T 3632-2019
- Product material：20MnTiB / 35VB
- Surface treatment：Blackened/Phosphated
- Product diameter：M16 M20 M22 M24 M27 M30
- Product length (mm)：
Diameter M16、Length 50 55 60 65 70 75 80 85 90 95 100 ...
Diameter M20、Length 50 55 60 65 70 75 80 85 90 95 100 ...
Diameter M22、Length 50 55 60 65 70 75 80 85 90 95 100 ...
Diameter M24、Length 55 60 65 70 75 80 85 90 95 100 ...
Diameter M27、Length 65 70 75 80 85 90 95 100 110 120 130 140 150 ...
Diameter M30、Length 80 85 90 95 100 110 120 130 140 150 160 170 180 ...
Product Detail
Product Composition: Each complete connection pair consists of three matching components: 1 heavy hex bolt, 1 thickened nut, and 2 high-strength flat washers, fully complying with national standard assembly requirements.
The bolt tail features a twist-off notch, with a specialized spline end at the tip serving as the signature structure of this product.
Applicable Scenarios: Specifically designed for friction-type heavy-duty steel structure joints — including high-rise office buildings, factory steel frames, bridge trusses, large venue space frames, wind turbine tower supports, tower cranes, heavy equipment steel bases, and photovoltaic main load-bearing steel beams — in load-bearing connections requiring high load capacity and strong seismic resistance.