S-90276A587 5/16"-18 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, extending service life in demanding industrial environments
- High-torque installation capability through slotted drive design, ensuring secure fastening in heavy-duty applications
- Exceptional mechanical strength with 60,000 psi tensile strength and Rockwell B69 hardness for reliable load-bearing performance
- Optimized thread engagement with UNC coarse threading and Class 2A fit, providing vibration resistance and quick assembly
- Full-length threading offering maximum adjustability and holding power across the entire fastener length
- Rounded head profile creating a finished appearance while minimizing snagging hazards in operational areas
- Regulatory compliance assurance meeting ASME B18.6.3, RoHS 3, and REACH standards for global industrial acceptance
Professional Applications & Engineering Value
Engineered for industrial machinery assembly and heavy equipment manufacturing, this zinc-plated steel rounded head screw addresses critical fastening challenges where vibration resistance and corrosion protection are paramount. The UNC coarse thread configuration ensures rapid installation in thick materials while maintaining Class 2A thread fit precision for consistent clamping force. The combination of 60,000 psi tensile strength and Rockwell B69 hardness provides reliable performance in high-stress applications, from structural frameworks to production line equipment. The slotted drive offers compatibility with standard tools while the rounded head design eliminates sharp edges, enhancing workplace safety in maintenance-intensive environments.
Specification Summary & Compliance
This 5/16"-18 x 1-1/2" screw features precise Class 2A thread fit tolerances with UNC coarse thread spacing (18 TPI) and right-hand threading. Manufactured to ASME B18.6.3 specifications with full compliance to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. The inch-system fasteners are fully threaded with standard rounded head profile, ensuring consistent performance across industrial applications.
