S-93126A170 2 3/4"-12 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 technology that maintains locking force in high-stress environments
- Enhanced durability in harsh conditions with black-phosphate steel construction providing corrosion resistance
- High-temperature performance with nylon insert rated for continuous service up to 250°F (121°C)
- Precision thread engagement with Class 2B thread fit ensuring reliable, consistent fastening performance
- Exceptional strength characteristics meeting ASTM Grade C specifications for heavy-duty industrial applications
- Easy installation and removal with standard external hex drive design and extra-wide thin profile
- Regulatory compliance assurance with REACH and RoHS 3 certifications for global market acceptance
Professional Applications & Engineering Value
This high-performance locknut delivers critical engineering solutions where vibration resistance and thermal stability are paramount. The nylon insert locking mechanism creates consistent friction against mating threads, preventing loosening under dynamic loads in heavy machinery, industrial equipment, and structural applications. The black-phosphate steel construction provides superior corrosion protection in demanding environments while maintaining the ASTM Grade C strength rating for high-stress applications. The extra fine UN thread configuration offers enhanced load distribution and precision alignment capabilities, making this industrial locknut ideal for critical assemblies requiring maintained clamping force and vibration resistance up to 250°F operating temperatures.
Specification Summary & Compliance
This locknut features precision Class 2B thread fit with 2 3/4"-12 UN extra fine threads in right-hand direction, ensuring optimal engagement and load distribution. The external hex drive with extra-wide thin profile (4" width × 2 3/16" height) facilitates standard tool application. Manufactured to ASTM Grade C strength specifications, this component is fully compliant with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) environmental standards for industrial use.
