S-90519A875 5/8"-11 ASTM A108 Hex Nuts
Hex 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
- Enhanced corrosion resistance through black-oxide steel coating, extending service life in demanding environments
- Reliable left-hand thread security prevents unintentional loosening in counter-rotating applications
- Space-saving thin profile (3/8" height) enables installation in tight clearance areas without compromising strength
- Precision Class 2B thread fit ensures smooth engagement and consistent clamping force
- Robust Grade 2 strength rating provides dependable performance for general industrial applications
- Coarse UNC threading allows for quick assembly and reduced cross-threading risk
- Full regulatory compliance with ASTM A108, RoHS, and REACH standards for worry-free global sourcing
Professional Applications & Engineering Value
This left-hand thin hex nut solves critical engineering challenges in rotating machinery and specialized equipment where reverse-thread fastening is essential. The black-oxide steel construction provides superior corrosion protection compared to plain steel, making it ideal for automotive, agricultural, and manufacturing applications exposed to moisture and chemicals. The UNC coarse thread design ensures rapid installation in high-volume assembly operations while maintaining vibration resistance. With its thin profile and external hex drive, this nut delivers maximum torque transmission in confined spaces where standard nuts cannot fit. Engineers specify this component for conveyor systems, pump assemblies, and machinery requiring left-hand threading to prevent loosening under counter-clockwise rotation forces.
Specification Summary & Compliance
This hex nut maintains Class 2B thread fit tolerances per UNC standards with 5/8"-11 coarse threading. Manufactured to ASTM A108 specifications with Grade 2 strength classification. Dimensions include 15/16" width across flats and 3/8" height. Fully compliant with RoHS 3 (2015/863/EU) under exemption 6(a) and REACH (EC 1907/2006) regulations regarding substance restrictions.
