S-91802A583 5/16"-18 x 1" ASME B18.6.3 Stainless Steel Phillips Oval Head Screws
Stainless Steel Phillips Oval 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 passivated 18-8 stainless steel construction, ideal for harsh environments and extended service life.
- High tensile strength of 80,000 psi ensures reliable performance under heavy loads and mechanical stress.
- Rockwell B80 hardness provides excellent durability and resistance to wear and deformation.
- Class 2A thread fit with UNC coarse threading offers easy installation and secure fastening in various materials.
- Phillips drive (No. 4 size) allows for efficient driving with standard tools, reducing assembly time.
- Oval head design delivers a flush, finished appearance while maintaining strong clamping force.
- Full compliance with ASME B18.6.3, RoHS 3, and REACH guarantees quality, safety, and environmental standards.
Professional Applications & Engineering Value
This 5/16"-18 x 1" passivated 18-8 stainless steel oval head Phillips screw is engineered to address critical industrial challenges, such as corrosion in marine, chemical, and outdoor settings. The passivated coating enhances the inherent corrosion resistance of 18-8 stainless steel, preventing rust and degradation from moisture and chemicals. Its UNC coarse thread and Class 2A fit ensure quick, reliable installation in metals and plastics, reducing the risk of cross-threading. With an oval head profile, it provides a smooth, low-profile finish ideal for applications where aesthetics and safety are priorities, such as machinery panels, automotive assemblies, and construction fixtures. This screw's 80,000 psi tensile strength and Rockwell B80 hardness make it suitable for high-stress environments, offering long-term reliability and reducing maintenance needs in demanding B2B applications.
Specification Summary & Compliance
This screw features precise Class 2A thread fit and UNC coarse threading (5/16"-18) for consistent performance. It adheres to ASME B18.6.3 manufacturing standards, ensuring dimensional accuracy and reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free from hazardous substances and safe for industrial use.
