S-90585A822 5/8"-11 x 1" ASME B18.3 Stainless Steel Hex Drive Flat Head Screws
Stainless Steel Hex Drive Flat 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 in harsh environments thanks to 316 stainless steel construction with passivated finish
- Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B55 hardness for demanding applications
- Precision thread engagement with Class 3A fit and UNC coarse threading ensures reliable fastening performance
- Optimized flush mounting with standard 82° countersink angle and flat head design for seamless surface integration
- Enhanced installation efficiency through 3/8" hex drive that provides secure tool engagement and torque transmission
- Full-threaded design delivers consistent holding power along the entire 1" length for maximum load distribution
- Regulatory compliance assurance meeting ASME B18.3 specifications and environmental standards including RoHS 3 and REACH
Professional Applications & Engineering Value
This 316 stainless steel flat head screw with 5/8"-11 UNC coarse threading delivers critical performance advantages in corrosive and high-stress industrial environments. The combination of 70,000 psi tensile strength and Rockwell B55 hardness ensures reliable fastening in structural applications, chemical processing equipment, marine hardware, and food processing machinery where both mechanical integrity and corrosion resistance are paramount. The passivated finish enhances the natural corrosion resistance of 316 stainless steel, while the Class 3A thread fit provides precise engagement for vibration-resistant assemblies. The 82° countersink angle and flat head profile create flush surface mounting ideal for applications requiring aerodynamic surfaces or where protrusions present safety hazards.
Specification Summary & Compliance
Manufactured to exacting inch system dimensions with Class 3A thread fit tolerance and UNC coarse thread specification. This fully threaded flat head screw complies with ASME B18.3 manufacturing standards and meets environmental regulations including RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance. The screw features a standard 82° countersink angle and is supplied with 3/8" hex drive for installation compatibility with standard industrial tools.
