S-90272A312 5/16"-18 x 1 3/4" ASME B18.6.3 Steel Pan Head Phillips Screws
Steel Pan Head Phillips 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 zinc-plated steel construction for extended service life in demanding environments
- Exceptional holding power with 60,000 PSI tensile strength and Rockwell B70 hardness for reliable fastening performance
- Quick installation and removal through No. 4 Phillips drive design with standard pan head profile
- Optimized thread engagement with fully threaded UNC coarse thread pattern for maximum grip in various materials
- Precise fit and compatibility ensured by Class 2A thread tolerance for consistent assembly quality
- Regulatory compliance meeting ASME B18.6.3 standards and environmental regulations for global industrial use
- Versatile application range with 1-3/4" length suitable for medium to heavy-duty assembly requirements
Professional Applications & Engineering Value
Engineered for demanding industrial environments, these zinc-plated steel screws provide critical corrosion protection while maintaining structural integrity. The fully threaded UNC coarse thread design delivers superior pull-out resistance in wood, metal, and composite materials, making them ideal for construction, machinery assembly, and equipment manufacturing. The combination of 60,000 PSI tensile strength and Rockwell B70 hardness ensures reliable performance under vibration and load stress, while the Phillips pan head with No. 4 drive offers efficient installation without specialized tools. These rounded head screws are specifically designed to prevent surface damage while providing flush mounting in applications where both strength and aesthetics matter.
Specification Summary & Compliance
This 5/16"-18 x 1-3/4" screw features Class 2A thread fit per UNC standards, ensuring precise dimensional accuracy and interchangeability. Manufacturing complies with ASME B18.6.3 specifications for mechanical fasteners, while environmental compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations. The right-hand threaded, fully threaded design with coarse thread spacing provides optimal performance in industrial fastening applications requiring high strength and durability.
