S-90631A125 M27 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through nylon insert technology that maintains secure locking under dynamic loads
• Enhanced corrosion protection with zinc-plated steel construction for extended service life in harsh environments
• Precision thread engagement with Class 6H thread fit ensuring reliable performance and easy installation
• High-temperature capability with nylon insert rated to 220°F (104°C) for demanding industrial applications
• Heavy-duty construction with 41mm width providing substantial bearing surface for high-load applications
• Standard external hex drive for compatibility with common wrenching tools and straightforward installation
• Regulatory compliance meeting both REACH and RoHS 3 environmental standards for global market acceptance

Professional Applications & Engineering Value

This M27x3mm nylon insert locknut delivers exceptional engineering value in applications where vibration-induced loosening compromises safety and performance. The zinc-plated steel construction provides durable corrosion resistance while the nylon insert creates consistent friction that maintains clamp force under extreme conditions. Engineered with Class 6H precision threads, this metric locknut ensures perfect mating with corresponding bolts in heavy machinery, industrial equipment, and structural assemblies. The coarse thread pitch facilitates quick installation while the external hex drive allows for high torque application using standard tools. With temperature resistance up to 220°F, this vibration-resistant nut performs reliably in automotive, manufacturing, and construction applications where thermal cycling and mechanical stress are constant challenges.

Specification Summary & Compliance

This heavy-duty locknut features M27x3mm coarse threads with Class 6H thread fit per metric standards, ensuring precise dimensional accuracy and reliable performance. The nut measures 41mm across flats with 27mm height, providing optimal strength-to-weight ratio. Manufactured from zinc-plated steel with right-hand threading and external hex drive configuration. Fully compliant with REACH (EC 1907/2006) regulations and RoHS 3 (2015/863/EU) directives, meeting the latest environmental and safety standards for industrial components.