S-93126A130 1 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 precision nylon insert that maintains locking force even under extreme conditions
- Enhanced durability in high-temperature environments with nylon insert rated for continuous service up to 250°F
- Optimal load distribution thanks to the extra-wide thin profile design that minimizes stress concentration
- Reliable thread engagement with Class 2B thread fit ensuring precise mating with mating components
- Corrosion-resistant protection from black-phosphate steel coating extending service life in demanding industrial settings
- Heavy-duty performance backed by ASTM Grade C material specifications for demanding applications
- Regulatory compliance assurance meeting both REACH and RoHS 3 environmental standards
Professional Applications & Engineering Value
This nylon insert locknut delivers exceptional engineering value in applications where vibration resistance and thermal stability are critical. The black-phosphate steel construction combined with the extra-wide thin profile provides superior clamping force distribution, preventing loosening in heavy machinery, industrial equipment, and structural assemblies. The UN extra fine thread configuration offers precise adjustment capabilities while the nylon insert maintains consistent locking performance up to 250°F, making it ideal for automotive, manufacturing, and construction applications where thermal cycling and dynamic loads are common challenges. The external hex drive ensures easy installation with standard tools while maintaining the integrity of the locking mechanism.
Specification Summary & Compliance
This heavy-duty locknut features 1 3/4"-12 UN extra fine threads with Class 2B thread fit for precise tolerance matching. The assembly meets ASTM Grade C strength requirements and incorporates a nylon insert locking mechanism rated for temperatures up to 250°F. Dimensions include 2 3/4" width and 1 15/32" height. The product is fully compliant with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) environmental regulations, ensuring safe use in regulated industrial environments.
