S-91333A180 1/2"-13 Locknuts
Locknuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Temperature & Environment Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Superior vibration resistance through nylon insert locking mechanism for secure fastening in high-motion environments
- Enhanced corrosion protection with black corrosion-resistant coating extending service life in harsh conditions
- Reliable high-temperature performance with nylon insert rated for continuous operation up to 220°F
- Precise thread engagement with Class 2B thread fit ensuring consistent installation and removal
- Industry-standard compatibility with UNC coarse thread pattern matching common industrial components
- Easy installation and removal using standard wrench tools with external hex drive design
- Regulatory compliance assurance meeting RoHS 3 and REACH standards for global industrial applications
Professional Applications & Engineering Value
This heavy-duty nylon insert lock nut delivers exceptional engineering value in demanding industrial environments where vibration-induced loosening compromises equipment reliability. The black corrosion-resistant coated steel construction provides durable protection against environmental degradation, while the nylon insert locking mechanism maintains clamping force under continuous vibration and thermal cycling. Engineered with UNC coarse threads and Class 2B thread fit, this external hex locknut ensures precise mating with standard industrial fasteners across machinery, automotive, construction, and manufacturing applications where temperature fluctuations up to 220°F require consistent locking performance without galling or seizing.
Specification Summary & Compliance
This 1/2"-13 UNC locknut features Class 2B thread fit precision with standard hex profile (3/4" width, 19/32" height) and right-hand thread direction. Manufactured to industrial standards with nylon insert locking technology rated for 220°F maximum temperature. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material transparency for global industrial supply chains.
