S-91306A298 1/2"-13 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-plated alloy steel construction, ideal for harsh industrial environments
- Superior load-bearing capability from 120,000 psi tensile strength and Rockwell C39 hardness for heavy-duty applications
- Precise thread engagement with Class 3A thread fit ensuring reliable, vibration-resistant fastening
- Easy installation and removal using standard 5/16" hex drive tools for efficient maintenance
- Full thread coverage along the 3/4" length provides maximum grip strength in various material thicknesses
- Compliance with major industry standards including ASME B18.3 and ASTM F835 for guaranteed performance
- Environmental regulation compliance with RoHS 3 and REACH standards for sustainable operations
Professional Applications & Engineering Value
These zinc-plated alloy steel rounded head screws deliver critical performance in demanding industrial settings where corrosion resistance and structural integrity are paramount. The combination of UNC coarse threading with Class 3A thread fit ensures rapid installation and superior vibration resistance in heavy machinery, structural steel frameworks, and manufacturing equipment. The hex drive design provides excellent torque transmission during installation, while the fully threaded configuration offers consistent clamping force across varying material thicknesses. Engineered to withstand extreme mechanical stress, these high-strength screws prevent joint failure in critical applications, reducing maintenance downtime and ensuring long-term operational reliability in construction, automotive, and industrial assembly environments.
Specification Summary & Compliance
This 1/2"-13 x 3/4" rounded head screw features precision UNC coarse threads with Class 3A thread fit for superior dimensional accuracy. Manufacturing complies with ASME B18.3 and ASTM F835 specifications, ensuring consistent quality and performance. The product meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance standards, making it suitable for regulated industries requiring sustainable and safe fastener solutions.
