S-91802A003 5/16"-18 x 1/2" 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 long-term reliability
- High tensile strength of 80,000 psi ensures secure fastening under demanding mechanical loads
- Rockwell B80 hardness provides excellent wear resistance and durability for repeated use
- Fully threaded design with coarse UNC threads enables faster installation and stronger holding power
- Class 2A thread fit guarantees precise, consistent engagement with standard nuts and tapped holes
- Phillips No. 4 drive and oval head profile offer easy, flush installation with standard tools
- Compliance with ASME B18.6.3, RoHS 3, and REACH ensures regulatory adherence and safe use in industrial applications
Professional Applications & Engineering Value
Engineered for demanding industrial environments, these passivated 18-8 stainless steel oval head screws deliver exceptional corrosion resistance and mechanical integrity. The fully threaded UNC coarse thread design ensures rapid assembly and robust load distribution, reducing the risk of loosening under vibration. With an 80,000 psi tensile strength and Rockwell B80 hardness, these flat head screws withstand high-stress applications in machinery, electrical enclosures, and structural assemblies. The Phillips drive and 82° countersink angle facilitate smooth, flush mounting, minimizing protrusion and enhancing safety in automated production lines. Ideal for OEMs and maintenance teams seeking reliable, ASME B18.6.3 compliant fasteners that meet rigorous industry standards.
Specification Summary & Compliance
This screw features a 5/16"-18 UNC coarse thread with Class 2A thread fit for precise tolerance, and dimensions including a 1/2" length, 0.635" head diameter, and standard oval head profile. Manufactured in accordance with ASME B18.6.3 specifications, it is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material reliability for global supply chains.
