M36 High-Strength Anti-Vibration Bolt and Nut Assembly for Wind Turbine Tower Applications

Engineered for the bolted joints of wind turbine towers, this M36 Grade 10.9 assembly delivers reliable anti-vibration performance, high fatigue strength, and long-term corrosion protection under continuous dynamic wind loads.

Key Features

• Proven Anti-Vibration Design — Each set pairs the bolt with a nylon-insert self-locking hex nut (DIN 985 / ISO 10511) and hardened serrated flange washers (DIN 6798), maintaining stable preload under continuous tower vibration and cyclic wind loading.

• High-Strength Grade 10.9 — Forged from 42CrMo alloy steel, quenched and tempered for high tensile and fatigue strength, with mechanical properties certified per ISO 898-1.

• Corrosion Resistant, Hydrogen-Embrittlement Controlled — Hot-dip galvanized (HDG) finish with a controlled dehydrogenation baking process suited to Grade 10.9 fasteners; Dacromet coating available as an alternative for offshore wind applications.

• Matched, Traceable Assembly — Bolt, nut, and washers are supplied as one matched set with traceable batch numbers, and every batch ships with EN 10204 3.1 material certificates to guarantee consistent joint performance.

Specifications

Applications

Wind turbine tower flange joints, tower sections, base rings and other high-vibration structural steel connections.

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