S-91440A201 8-32 x 1 1/4" ASME B18.6.3 Steel Round Head Combination Phillips/Slotted Screws
Steel Round Head Combination Phillips/Slotted 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
- Enhanced corrosion resistance with zinc plating for extended service life in demanding environments
- Superior mechanical strength with 60,000 psi tensile strength and Rockwell B70 hardness for reliable load-bearing performance
- Versatile installation options with combined Phillips/Slotted drive for compatibility with common tools
- Optimized thread engagement through UNC coarse threading ensuring secure fastening in various materials
- Precision manufacturing with Class 2A thread fit providing consistent, reliable assembly
- Full-thread design offering maximum grip length and holding power throughout the entire fastener
- Regulatory compliance meeting industry standards for quality and environmental safety
Professional Applications & Engineering Value
Engineered for industrial applications requiring durable fastening solutions, these zinc-plated steel rounded head screws deliver exceptional performance in machinery assembly, electrical enclosures, and structural components. The UNC coarse thread configuration provides superior pull-out resistance in softer materials while maintaining vibration resistance. The combination of Phillips/Slotted drive accommodates various installation tools, reducing assembly time and tooling requirements. With 60,000 psi tensile strength and Rockwell B70 hardness, these screws withstand significant mechanical stress and repeated torque applications, making them ideal for maintenance, repair, and OEM applications where reliability is critical.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 2A thread fit tolerance ensuring consistent performance across applications. Complies with ASME B18.6.3 specifications for dimensional accuracy and mechanical properties. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance requirements. Features right-hand UNC coarse threads with full threading along the entire 1-1/4" length for maximum engagement strength.
