S-90276A546 1/4"-20 x 1 1/2" ASME B18.6.3 Steel Round Head Slotted Screws
Steel Round 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 for extended service life in demanding environments
- Excellent load-bearing capability with 60,000 psi tensile strength to withstand high-stress applications
- Optimized thread engagement through UNC coarse threading and Class 2A fit for reliable fastening performance
- Enhanced durability with Rockwell B69 hardness rating maintaining structural integrity under repeated use
- Simplified installation with standard slotted drive design compatible with common hand tools
- Full-threaded design providing maximum grip length and uniform stress distribution
- Regulatory compliance assurance meeting ASME B18.6.3 standards for dimensional accuracy and performance
Professional Applications & Engineering Value
This zinc-plated steel round head screw delivers exceptional engineering value across industrial applications where corrosion resistance and structural integrity are paramount. The combination of UNC coarse threading and Class 2A thread fit ensures rapid installation and reliable performance in machinery assembly, electrical enclosures, and structural frameworks. The slotted drive style provides compatibility with standard tools while the rounded head profile distributes clamping force evenly, preventing surface damage. With 60,000 psi tensile strength and full compliance with ASME B18.6.3 standards, this fastener addresses critical concerns of vibration resistance, material fatigue, and long-term reliability in manufacturing, construction, and maintenance operations.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 2A thread fit and UNC coarse threading (1/4"-20) ensuring consistent performance across applications. This rounded head screw meets ASME B18.6.3 specifications for dimensional accuracy and mechanical properties. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming its suitability for global industrial markets and restricted substance requirements.
