S-91263A805 5/8"-11 x 1 1/2" ASTM F835 Alloy Steel Hex Drive Flat Head Screws
Alloy Steel Hex Drive Flat Head 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 tensile strength of 130,000 PSI ensures reliable performance in heavy-duty applications
- Precise Class 3A thread fit provides secure, vibration-resistant fastening with minimal risk of loosening
- 82° countersink angle allows for flush mounting and clean, professional finishes
- 3/8" hex drive design enables easy installation with standard tools and high torque application
- Full threading along the 1-1/2" length delivers maximum grip and load distribution
- Rockwell C37 hardness rating maintains structural integrity under repeated stress and load cycles
Professional Applications & Engineering Value
Engineered for demanding industrial environments, these 5/8"-11 UNC flat head screws solve critical fastening challenges where vibration resistance and corrosion protection are paramount. The zinc-plated alloy steel construction provides excellent durability against environmental factors, while the coarse UNC thread and Class 3A fit ensure secure engagement in various materials. The 82° countersink angle facilitates flush installation in machinery, structural steel, and heavy equipment applications, preventing snagging and maintaining clean profiles. These fully threaded screws with 3/8" hex drive are particularly valuable in assembly lines, construction projects, and manufacturing facilities where reliable, high-strength fastening solutions are essential for operational safety and longevity.
Specification Summary & Compliance
These flat head screws feature precise Class 3A thread fit with 5/8"-11 UNC coarse threading and are manufactured to meet ASTM F835 specifications. The inch-system dimensional accuracy includes 1-1/2" length and 82° countersink angle for standardized installation. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures environmental safety and material responsibility in industrial applications worldwide.
