S-92800A275 9/16"-18 x 5 1/2" 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
- Superior corrosion resistance with 18-8 stainless steel construction for long-lasting performance in harsh industrial environments
- Exceptional tensile strength rated at 80,000 PSI ensures reliable fastening under heavy loads and vibration
- Precision UNF fine threading with Class 2A fit provides superior engagement and vibration resistance
- Optimized partial threading design allows for controlled clamping force and easier assembly
- External hex drive compatibility enables high-torque installation with standard industrial tools
- Rockwell B70 hardness maintains thread integrity and prevents stripping during repeated use
- Full regulatory compliance with RoHS 3 and REACH standards for global industrial applications
Professional Applications & Engineering Value
This 9/16"-18 UNF hex head screw delivers exceptional engineering value for demanding industrial applications where corrosion resistance and mechanical reliability are critical. The 18-8 stainless steel composition provides excellent protection against rust and chemical exposure, making it ideal for marine equipment, food processing machinery, and outdoor structural applications. The fine UNF threading with Class 2A fit ensures precise engagement in tapped holes, reducing the risk of cross-threading while maintaining consistent clamping force. The partial threading design allows for optimal stress distribution, preventing joint loosening under dynamic loads. With its external hex drive configuration, this fastener accommodates high installation torque requirements common in heavy machinery assembly and structural steel connections.
Specification Summary & Compliance
This inch-system fastener features precision 9/16"-18 UNF fine threading with Class 2A thread fit tolerance, ensuring consistent engagement and reliable performance. The 5 1/2" length with 1 3/8" minimum thread length provides versatile application coverage. Manufactured from 18-8 stainless steel with Rockwell B70 hardness and 80,000 PSI tensile strength, this screw meets rigorous industrial standards. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and workplace safety compliance.
