S-91306A416 3/8"-16 x 3/4" 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 corrosion resistance with zinc plating for extended service life in demanding industrial environments
- Superior thread engagement with Class 3A fit ensuring precise, vibration-resistant connections in critical applications
- High-torque installation capability through 7/32" hex drive design preventing tool slippage and damage
- Maximum load-bearing capacity with 120,000 psi tensile strength for heavy-duty fastening requirements
- Enhanced durability from Rockwell C39 hardness providing excellent resistance to wear and deformation
- Full-thread design offering consistent gripping strength along the entire 3/4" length for secure fastening
- Regulatory compliance assurance meeting ASME B18.3, ASTM F835, RoHS 3, and REACH standards for quality and safety
Professional Applications & Engineering Value
These zinc-plated alloy steel rounded head screws with 3/8"-16 UNC coarse threading deliver critical performance advantages in industrial assembly operations. The Class 3A thread fit provides superior vibration resistance in machinery, automotive, and construction applications where loosening under dynamic loads is a primary concern. The button head profile offers a low-profile finish while the 7/32" hex drive enables high-torque installation without cam-out issues. The combination of 120,000 psi tensile strength and Rockwell C39 hardness ensures these fully threaded screws maintain integrity under extreme mechanical stress, making them ideal for structural connections, equipment frames, and heavy machinery where fastener failure is not an option.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 3A thread tolerance for superior fit and UNC coarse thread specification. Complies with ASME B18.3 and ASTM F835 manufacturing standards, ensuring consistent quality and performance. Meets RoHS 3 (2015/863/EU) compliance for restricted substances and REACH (EC 1907/2006) regulations for chemical safety. Features right-hand threading with 3/4" length and 0.375" thread diameter for standardized industrial applications.
