S-90413A101 6-32 Locknuts
Locknuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Finish & Compliance Parameters
Washer Parameters
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Key Features & Benefits at a Glance
- Superior vibration resistance through the integrated external-tooth lock washer system that maintains secure fastening in high-motion environments
- Enhanced corrosion protection with zinc-plated steel construction, ensuring longevity in harsh industrial conditions
- Reliable coarse thread engagement with UNC 6-32 threading for quick installation and reduced cross-threading risks
- Consistent performance due to Class 2B thread fit, providing optimal clearance for smooth assembly without compromising strength
- Easy installation and removal with standard 1/4" external hex drive profile compatible with common wrench tools
- Environmental compliance assurance meeting REACH and RoHS 3 standards for safe use in regulated industries
- Durable locking mechanism featuring a steel external-tooth lock washer that bites into surfaces for permanent fastener security
Professional Applications & Engineering Value
This zinc-plated steel locknut with external-tooth lock washer system addresses critical vibration-induced loosening in industrial equipment, machinery, and automotive assemblies. The UNC coarse thread design ensures rapid installation while maintaining Class 2B thread fit precision for consistent performance in high-stress applications. The integrated locking mechanism provides permanent security without requiring additional components, making it ideal for vibration-resistant fastening in manufacturing, transportation, and heavy equipment where maintenance access is limited. The right-hand thread configuration with external hex drive offers compatibility with standard tooling while the zinc plating delivers corrosion resistance for extended service life in challenging environments.
Specification Summary & Compliance
Manufactured to precise dimensional standards with 1/4" width across flats and 1/8" height. Features 6-32 UNC coarse threads with Class 2B thread fit for industrial applications. The external-tooth lock washer measures 0.281" OD and is constructed from steel. Fully compliant with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) environmental regulations for hazardous substance restrictions.
