S-90276A593 5/16"-18 x 2 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 harsh industrial environments
- Optimized fastening performance through 60,000 psi tensile strength and Rockwell B69 hardness for heavy-duty applications
- Reliable thread engagement with 5/16"-18 UNC coarse threading and Class 2A fit ensuring secure connections
- Easy installation and removal with standard slotted drive design compatible with common tools
- Versatile partial threading allowing precise clamping force control across various material thicknesses
- Industry-standard compliance meeting ASME B18.6.3 specifications for consistent quality and interchangeability
- Environmental responsibility with RoHS 3 and REACH compliance for sustainable manufacturing practices
Professional Applications & Engineering Value
Engineered for demanding industrial fastening applications, these zinc-plated steel rounded head screws deliver exceptional durability where corrosion resistance and structural integrity are critical. The UNC coarse threading provides superior holding power in soft materials and rapid installation, while the partial threading design prevents over-tightening and material damage. The slotted drive offers compatibility with standard tools, making these heavy-duty fasteners ideal for machinery assembly, structural frameworks, and equipment maintenance where 60,000 psi tensile strength ensures long-term reliability under vibration and load stress conditions.
Specification Summary & Compliance
This 5/16"-18 screw features precise Class 2A thread fit tolerances and UNC coarse threading per ASME B18.6.3 manufacturing standards. The 2 1/2" length with partial threading (minimum 1 1/2" thread length) ensures consistent performance. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, meeting international safety and sustainability requirements for industrial components.
