S-90271A587 5/16"-18 x 1 1/2" ASME B18.6.3 Steel Truss Head Slotted Screws
Steel Truss 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
- Enhanced corrosion resistance with zinc-plated steel construction for prolonged service life in demanding environments
- Superior load distribution thanks to the wide truss head design that minimizes surface damage and prevents pull-through
- Reliable high-strength performance with 60,000 PSI tensile strength and Rockwell B69 hardness for heavy-duty applications
- Quick installation and removal with standard slotted drive compatibility using common hand tools
- Optimal thread engagement through fully threaded coarse UNC pattern providing maximum holding power
- Precise fit and interchangeability ensured by Class 2A thread fit meeting industrial standards
- Broad industrial compliance with ASME B18.6.3 specifications and environmental regulations including RoHS 3 and REACH
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these zinc-plated steel rounded truss head screws deliver exceptional performance where vibration resistance and structural integrity are critical. The wide truss head design provides significantly larger bearing surface than standard fasteners, distributing clamp load effectively to prevent material damage in sheet metal, electrical enclosures, and machinery assemblies. The coarse UNC thread pattern ensures rapid installation and superior holding power in various materials, while the Class 2A thread fit guarantees consistent performance and interchangeability. With 60,000 PSI tensile strength and Rockwell B69 hardness, these fully threaded screws maintain integrity under substantial mechanical stress, making them ideal for construction, manufacturing, and maintenance operations requiring heavy-duty fastening solutions.
Specification Summary & Compliance
This 5/16"-18 screw features precise Class 2A thread fit tolerances according to UNC coarse thread standards with full threading along the 1½" length. Manufacturing complies with ASME B18.6.3 specifications for dimensional accuracy and performance requirements. The product meets RoHS 3 (2015/863/EU) compliance for restricted substances and REACH (EC 1907/2006) regulations (updated 06/14/2023 235 SVHC), ensuring environmental responsibility and workplace safety standards.
