S-92198A487 5/8"-18 x 3" ASME B18.2.1 18-8 Stainless Steel Hex Head Screws
18-8 Stainless Steel Hex Head 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
- Exceptional corrosion resistance from 18-8 Stainless Steel construction, ideal for harsh industrial environments and outdoor applications.
- High tensile strength of 80,000 psi ensures reliable performance under significant load and stress, reducing the risk of fastener failure.
- Superior thread engagement and precision with a Class 2A thread fit for easier assembly and a secure, vibration-resistant connection.
- Durable Rockwell B70 hardness provides excellent wear resistance and maintains thread integrity through repeated use.
- Optimized for efficient installation with a standard 15/16" external hex head, allowing for high-torque application with common tools.
- Reliable performance in critical assemblies due to compliance with the rigorous ASME B18.2.1 standard for dimensional consistency.
- Safe for regulated industries with full compliance to RoHS 3 and REACH environmental regulations.
Professional Applications & Engineering Value
Engineered for demanding applications, this 5/8"-18 UNF Hex Head Screw delivers critical value where corrosion resistance and structural integrity are non-negotiable. The 18-8 Stainless Steel material inherently resists rust and chemical attack, making it a superior choice for marine, chemical processing, and food-grade equipment. The UNF fine thread and partial threading provide enhanced grip and clamping force in materials prone to stripping, while the external hex drive head design ensures compatibility with standard wrenches for rapid, high-torque installation in heavy machinery, structural frames, and industrial assembly lines, effectively reducing downtime and maintenance costs.
Specification Summary & Compliance
This screw features a 5/8"-18 UNF thread with a Class 2A thread fit for consistent, precise engagement. It is manufactured to meet the dimensional requirements of ASME B18.2.1 and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free of hazardous substances for use in global markets.
