S-91263A527 8-32 x 7/8" 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 tensile strength (130,000 psi) for reliable performance in demanding industrial applications
- Superior corrosion resistance with zinc plating, extending service life in harsh environments
- Precision Class 3A thread fit ensures secure, vibration-resistant connections with minimal backlash
- High hardness rating (Rockwell C39) provides excellent wear resistance and durability
- 82° countersink angle allows for flush mounting in standard applications
- Fully threaded design offers maximum grip length and holding power
- Hex drive compatibility (3/32") enables efficient installation with common tools
Professional Applications & Engineering Value
These 8-32 UNC flat head screws deliver critical engineering solutions where reliable fastening under stress is paramount. The zinc-plated alloy steel construction provides essential corrosion protection for machinery, equipment assemblies, and structural components exposed to industrial environments. The coarse UNC thread profile ensures rapid installation and superior holding power in various materials, while the Class 3A thread fit maintains precise tolerances for vibration-resistant connections. The 82° countersink design creates clean, flush surfaces in automotive, manufacturing, and construction applications where protrusions are unacceptable. These fully threaded screws with 130,000 psi tensile strength are engineered to withstand heavy loads and dynamic stresses in demanding fastening scenarios.
Specification Summary & Compliance
Manufactured to exacting inch system dimensions with Class 3A thread fit precision and UNC coarse thread specifications. Complies with ASTM F835 manufacturing standards for mechanical properties and quality assurance. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance requirements, ensuring safe use in regulated industries. Features right-hand threading and standard flat head profile for consistent performance across applications.
