S-90585A724 1/2"-13 x 3" 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 and passivated finish
- Exceptional mechanical strength with a 70,000 psi tensile strength and Rockwell B55 hardness for reliable performance under high stress
- Precise, secure fastening ensured by the Class 3A thread fit and coarse UNC thread for easier assembly and vibration resistance
- Streamlined installation with a standard 82° countersink angle and 5/16" hex drive for a flush, professional finish
- Full-length thread engagement across the 3" length provides maximum grip and load distribution
- Regulatory compliance and quality assurance with adherence to ASME B18.3 standards and RoHS 3 & REACH environmental directives
- Durable, long-lasting performance in demanding industrial applications, reducing replacement frequency and maintenance costs
Professional Applications & Engineering Value
This 316 Stainless Steel Flat Head Screw is engineered to address critical challenges in corrosive and high-stress environments. The passivated finish enhances the inherent corrosion resistance of 316 stainless steel, making it ideal for marine, chemical processing, and outdoor applications where moisture and chemicals are prevalent. The 1/2"-13 UNC coarse thread and Class 3A fit provide superior holding power and ease of installation, even in materials prone to stripping. The flat head with an 82° countersink allows for a smooth, flush surface, essential for safety and aesthetics in machinery, structural assemblies, and transportation equipment. With a fully threaded 3" length and 70,000 psi tensile strength, it ensures reliable, vibration-resistant connections in heavy-duty industrial fasteners, minimizing downtime and enhancing operational integrity.
Specification Summary & Compliance
This screw maintains precise dimensional accuracy with a Class 3A thread fit and adheres to the UNC thread standard. Manufacturing and quality are governed by the ASME B18.3 specification. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets stringent environmental and safety standards for industrial use.
