S-91306A264 8-32 x 3/16" ASTM F835 Steel Button Head Hex-Drive Screws
Steel Button Head Hex-Drive 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
- Exceptional load-bearing capability with 120,000 psi tensile strength for reliable performance in demanding applications
- Superior corrosion resistance through zinc-plated alloy steel construction extending service life in harsh environments
- Precise thread engagement with Class 3A thread fit ensuring secure fastening and vibration resistance
- Optimized drive efficiency featuring hex drive design for maximum torque transmission and installation control
- Enhanced durability with Rockwell C39 hardness maintaining structural integrity under repeated stress
- Versatile coarse threading with UNC 8-32 pattern providing quick installation and superior holding power
- Comprehensive compliance meeting ASME B18.3 and ASTM F835 standards for guaranteed engineering quality
Professional Applications & Engineering Value
These zinc-plated alloy steel rounded head screws deliver critical performance advantages for industrial assembly applications where vibration resistance and corrosion protection are paramount. The fully threaded UNC coarse pattern ensures maximum thread engagement in various materials, while the Class 3A thread fit provides precise tolerances for secure fastening in machinery, equipment manufacturing, and structural components. The button head style with hex drive offers both aesthetic appeal and practical installation benefits, making these high-strength fasteners ideal for automotive, electrical enclosures, and heavy-duty industrial applications where reliability cannot be compromised.
Specification Summary & Compliance
Manufactured to exacting Class 3A thread fit standards with UNC coarse threading (8-32) and precise dimensional control per ASME B18.3 and ASTM F835 specifications. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets. The 3/16" length and 0.312" head diameter provide consistent dimensional accuracy for repeatable installation performance.
