S-91783A574 1/4"-20 x 4 1/2" ASME B18.6.3 Stainless Steel Round Head Slotted Screws
Stainless 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 18-8 Stainless Steel construction and passivated finish, ideal for harsh environments
- Exceptional tensile strength rated at 100,000 psi for reliable performance in demanding applications
- Optimized thread engagement with UNC coarse threading and Class 2A fit ensuring secure fastening
- Enhanced durability with Rockwell B100 hardness providing excellent wear resistance
- Versatile partial threading design allowing flexibility in clamping and positioning
- Standard slotted drive compatibility with common tools for easy installation and maintenance
- Full regulatory compliance meeting ASME B18.6.3 specifications and environmental standards
Professional Applications & Engineering Value
This 1/4"-20 UNC coarse thread screw delivers critical performance in industrial settings where corrosion resistance and mechanical strength are paramount. The 18-8 Stainless Steel composition with passivated finish provides exceptional protection against chemical exposure and atmospheric corrosion, making it ideal for marine, food processing, and chemical plant applications. The rounded head slotted design offers reliable torque transmission while the partial threading configuration allows precise adjustment in assembly operations. With 100,000 psi tensile strength and standardized dimensions per ASME B18.6.3, these industrial screws ensure consistent performance in machinery, equipment manufacturing, and structural assemblies where vibration resistance and long-term reliability are essential.
Specification Summary & Compliance
This rounded head screw features precision UNC coarse threads with Class 2A thread fit tolerance for consistent engagement. Manufacturing complies with 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, ensuring safe use across various industrial sectors. Thread configuration follows standard right-hand direction with 1/4"-20 thread size and 4 1/2" length for broad compatibility with existing fastening systems.
