S-90043A055 1/2"-13 Square Nuts
Square Nuts
Image may differ from product. See technical specification for details.
Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Finish & Compliance Parameters
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Superior holding power with coarse UNC threading that resists loosening under vibration and heavy loads
- Exceptional durability provided by high-strength steel construction for long service life in demanding environments
- Precise thread engagement with Class 2B fit ensuring consistent performance and reduced cross-threading risks
- Easy installation and removal thanks to the external square drive that accommodates standard wrenches
- Reliable industrial compliance meeting RoHS 3 and REACH standards for safe use in regulated applications
- Optimized dimensional stability with 13/16" width providing substantial bearing surface for secure fastening
- Versatile right-hand threading compatible with standard industrial equipment and replacement parts
Professional Applications & Engineering Value
This heavy-duty square nut delivers critical engineering solutions where vibration resistance and structural integrity are paramount. The steel construction combined with UNC coarse threading creates a robust fastening system that maintains clamp force in high-stress applications including machinery bases, structural frameworks, and industrial equipment. The external square drive design allows for high-torque installation without rounding, while the Class 2B thread fit ensures smooth engagement with mating components. These industrial square nuts are engineered to withstand extreme conditions in manufacturing, construction, and heavy equipment applications where reliable, maintenance-free performance is essential.
Specification Summary & Compliance
This square nut features precision 1/2"-13 UNC coarse threads with Class 2B thread fit per ASME B1.1 standards, ensuring dimensional accuracy and proper clearances. The nut measures 13/16" in width and 7/16" in height, manufactured from high-grade steel. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting current industrial safety and environmental standards for hazardous substance restrictions.
