S-90585A079 1"-8 x 2" 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 with 316 stainless steel construction and passivated finish for extended service life in harsh environments
- Exceptional mechanical strength delivering 70,000 psi tensile strength and Rockwell B55 hardness for heavy-duty applications
- Precision thread engagement with Class 3A fit and UNC coarse spacing ensuring reliable, vibration-resistant connections
- Optimized drive efficiency through 5/8" hex drive design providing maximum torque transfer and installation control
- Flush mounting capability with standard 82° countersink angle for seamless surface integration
- Full threading coverage along the 2" length for consistent grip strength throughout the fastener
- Regulatory compliance assurance meeting ASME B18.3 specifications and environmental standards including RoHS 3 and REACH
Professional Applications & Engineering Value
These 316 stainless steel flat head screws with 1"-8 UNC threading provide critical solutions for industrial applications where corrosion resistance and structural integrity are paramount. The passivated finish significantly enhances surface durability against chemical exposure and atmospheric conditions, while the Class 3A thread fit ensures precise engagement that maintains connection security under vibration and dynamic loads. The combination of 70,000 psi tensile strength and fully threaded design makes these hex drive screws ideal for heavy machinery, marine equipment, chemical processing systems, and infrastructure projects requiring reliable fastening with regulatory compliance to ASME B18.3 standards.
Specification Summary & Compliance
Manufactured to exacting ASME B18.3 specifications with critical dimensions including 1.938" head diameter, 2" length, and 82° countersink angle. Threading conforms to UNC coarse spacing standards with Class 3A precision fit for optimal engagement. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for restricted substance-sensitive applications across global markets.
