S-90280A546 1/4"-20 x 1 1/2" ASME B18.6.3 Steel Fillister Head Slotted Screws
Steel Fillister Head 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
- Superior corrosion resistance with zinc-plated steel construction, extending service life in demanding industrial environments
- Enhanced torque transmission through the slotted fillister head design, preventing tool slippage during installation
- High-strength performance with 60,000 psi tensile strength and Rockwell B69 hardness for reliable load-bearing applications
- Optimized thread engagement with UNC coarse spacing and Class 2A fit, ensuring quick assembly and vibration resistance
- Full-length threading providing consistent fastening strength along the entire 1-1/2" length
- Regulatory compliance assurance meeting ASME B18.6.3 standards and environmental regulations including RoHS 3 and REACH
- High-profile rounded head design offering improved clearance and professional appearance in finished applications
Professional Applications & Engineering Value
This zinc-plated steel fillister head screw delivers exceptional engineering value for industrial machinery, equipment assembly, and precision manufacturing applications. The combination of high-strength steel material and protective zinc plating addresses common corrosion concerns in manufacturing environments while maintaining 60,000 psi tensile strength. The rounded fillister head profile with slotted drive provides superior tool engagement for secure installation, while the UNC coarse thread spacing ensures rapid assembly in production settings. These fully threaded screws are particularly valuable in applications requiring consistent clamping force across the entire fastener length, making them ideal for electronic enclosures, machinery guards, and precision instrument assembly where vibration resistance and long-term reliability are critical.
Specification Summary & Compliance
This fastener features precise Class 2A thread fit with UNC 1/4"-20 coarse thread specifications, ensuring proper engagement and interchangeability. Manufacturing complies with ASME B18.6.3 standards for dimensional accuracy and performance requirements. The product meets environmental compliance including RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming adherence to restricted substance guidelines for industrial use across global markets.
