S-91802A550 1/4"-20 x 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 industrial environments
- Exceptional mechanical strength with 80,000 psi tensile strength and Rockwell B80 hardness for reliable load-bearing performance
- Optimized installation efficiency through Phillips No. 3 drive design and fully threaded UNC coarse thread pattern
- Precise thread engagement with Class 2A thread fit ensuring consistent fastening in demanding applications
- Enhanced flush mounting capability thanks to the standard oval head profile with 82° countersink angle
- Regulatory compliance assurance meeting ASME B18.6.3 specifications and environmental standards including RoHS 3 and REACH
- Dimensional consistency with 2" length and 0.477" head diameter for predictable performance across multiple installations
Professional Applications & Engineering Value
These passivated 18-8 stainless steel oval head screws deliver critical corrosion resistance where moisture, chemicals, or outdoor exposure would compromise ordinary fasteners. The fully threaded UNC coarse thread design ensures maximum grip strength in materials ranging from metals to composites, while the Phillips No. 3 drive provides secure torque transmission during installation. Particularly valuable in industrial equipment assembly, marine applications, and outdoor infrastructure, these screws maintain integrity under vibration and load stress thanks to their 80,000 psi tensile strength. The oval head profile with 82° countersink enables clean, flush mounting in predrilled surfaces, making them ideal for applications requiring both aesthetic finish and structural reliability.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 2A thread fit tolerance and UNC coarse thread specifications. Complies with ASME B18.6.3 mechanical standards for oval head screws. Meets environmental regulations including RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance. Features right-hand thread direction and fully threaded design with consistent 0.25" thread diameter and standardized thread spacing.
