S-92311A397 5/8"-18 x 3/4" 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
- Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and long-term reliability.
- Precise, secure fastening thanks to Class 3A thread fit, ensuring tight tolerances and reduced risk of loosening under vibration.
- High durability and strength from Rockwell B80 hardness, providing excellent wear resistance and load-bearing capability.
- Easy installation and removal with the 5/16" hex drive, allowing for efficient assembly and maintenance with standard tools.
- Reliable grip and minimal surface damage due to the cup tip design, which concentrates force for secure positioning of components.
- Fine thread spacing for improved adjustment accuracy and better holding power in dynamic applications.
- Compliance with industry standards including ASME B18.3, RoHS 3, and REACH, ensuring safety and environmental responsibility.
Professional Applications & Engineering Value
This 5/8"-18 UNF Class 3A set screw is engineered to address common industrial challenges such as component slippage and corrosion-induced failure. Made from 18-8 stainless steel, it offers exceptional resistance to rust and chemicals, making it suitable for applications in machinery, automotive assemblies, and outdoor equipment where moisture or corrosive agents are present. The fine thread spacing and right-hand thread design provide enhanced clamping force and precision alignment, reducing the need for frequent retightening in high-vibration environments. With its hex headless and cup tip, it ensures minimal protrusion and secure fastening without damaging adjacent surfaces, delivering reliable performance in industrial set screws for pivots, shafts, and collars.
Specification Summary & Compliance
This set screw adheres to Class 3A thread fit for precise dimensional accuracy and tight tolerances per UNF thread standards. It meets ASME B18.3 specifications for consistent manufacturing quality and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and safe for various industrial applications.
