What kinds of anchor bolts are used as wind turbine fastener

Grade 8.8, 9.8, 10.9, 12.9  are high strength anchor bolts for wind power. Grade 10.9 and 8.8 are the most common grades. 

At present, there are roughly 3 types of fasteners used in domestic wind turbines and foundations:

  1. Tower bolts. High strength bolts used on the wind turbine tower are mainly GB / T 1228 ~ 1231, DIN6914 ~ 6916 and DAST.
  2. Bolts of wind turbine. Or foundation bolt, onshore anchor cage bolt, high strength anchor bolts used on wind turbines are mainly hexagonal head bolts such as GB / T 5782, GB / T 5783, GB / T 70.1, GB / T 6170, and GB / T 97, hexagon bolts, hexagon nuts and washers.
  3. Blade bolts. That is, anchor bolts connecting wind turbine blades are mainly non-standard double-headed studs and T-round nuts, blade bolts, T-nuts and morse washers, etc.


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Post time: Mar-16-2021