S-90276A533 1/4"-20 x 1/4" 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, extending service life in demanding industrial environments
- Reliable fastening performance through Class 2A coarse thread fit, ensuring consistent engagement and reduced cross-threading risks
- Optimized drive compatibility with standard slotted head design, facilitating quick installation with common tools
- Enhanced mechanical strength from Rockwell B69 hardness, providing excellent resistance to deformation under load
- Maximum thread engagement with fully threaded design, offering superior holding power across the entire fastener length
- Industry-standard compliance meeting ASME B18.6.3 specifications, guaranteeing dimensional accuracy and interchangeability
- Environmental regulation adherence with RoHS 3 and REACH compliance, ensuring safe use in regulated applications
Professional Applications & Engineering Value
These zinc-plated steel slotted round head screws deliver exceptional engineering value in industrial fastening applications where corrosion resistance and mechanical reliability are paramount. The 1/4"-20 UNC coarse thread configuration provides rapid installation and secure holding in various materials, while the fully threaded design ensures maximum engagement depth. The rounded head profile with standard slotted drive offers compatibility with existing tooling while minimizing surface protrusion. Engineered to ASME B18.6.3 standards, these screws maintain precise dimensional tolerances for consistent performance in assembly operations, electrical enclosures, machinery components, and structural applications where vibration resistance and long-term durability are critical requirements.
Specification Summary & Compliance
These rounded head screws feature precise Class 2A thread fit tolerances with UNC coarse threading (1/4"-20) and right-hand thread direction. Manufacturing complies with ASME B18.6.3 specifications for dimensional accuracy and performance standards. The products are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring restricted substance compliance for global industrial applications.
