S-90289A789 5/8"-11 x 1/2" ASME B18.3 Set Screws
Set Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Enhanced corrosion resistance with black-oxide coating, extending service life in demanding industrial environments
- Superior holding power thanks to Class 3A thread fit and cup point tip design for maximum grip and minimal slippage
- High-strength performance with Rockwell C45 hardness alloy steel, ensuring durability under heavy loads
- Secure locking capability through serrations that prevent loosening from vibration in machinery applications
- Easy installation and removal with 5/16" hex drive, providing reliable torque transfer without head protrusion
- Precision threading with 5/8"-11 UNC coarse threads for quick assembly and strong engagement in various materials
- Regulatory compliance meeting ASME B18.3 standards and environmental regulations for global industrial use
Professional Applications & Engineering Value
This black-oxide alloy steel set screw delivers exceptional engineering value in industrial applications where vibration resistance and precise component positioning are critical. The headless design with hex drive allows for flush mounting in confined spaces while maintaining high torque capability. The cup point tip creates concentrated pressure for superior holding force in pulleys, gears, and collars, preventing rotational movement under dynamic loads. Manufactured to Class 3A thread fit specifications with UNC coarse threads, this fastener ensures reliable engagement and easy installation in production environments. The combination of Rockwell C45 hardness and corrosion-resistant black-oxide coating provides long-term performance in automotive, machinery, and heavy equipment applications where durability and precision are paramount.
Specification Summary & Compliance
This set screw features precision 5/8"-11 UNC Class 3A threads with coarse spacing for optimal engagement strength. Manufactured in accordance with ASME B18.3 specifications, it ensures dimensional accuracy and performance reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making it suitable for global industrial applications requiring strict adherence to safety and environmental standards.
