S-90429A114 0-80 x 1" 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 black-oxide coating on alloy steel for prolonged service life in demanding environments
- Superior thread engagement with Class 3A fit ensuring precise, vibration-resistant connections in critical assemblies
- High-strength performance delivering 130,000 psi tensile strength and Rockwell C39 hardness for heavy-duty applications
- Optimized flush mounting with standard 82° countersink angle providing seamless surface finishing
- Reliable drive transfer through hex drive design (0.035") enabling secure installation with standard tools
- Fine thread precision with UNF 0-80 threading offering superior holding power in thin materials
- Regulatory compliance assurance meeting ASME B18.3, ASTM F835, RoHS 3, and REACH standards for global deployment
Professional Applications & Engineering Value
These 0-80 UNF flat head screws deliver critical engineering solutions where space constraints and material thickness demand precision fine thread fasteners. The black-oxide alloy steel construction provides essential corrosion protection while maintaining the 130,000 psi tensile strength required for high-stress assemblies. The partially threaded design concentrates engagement where needed most, preventing cross-threading in delicate components commonly found in electronics, aerospace subassemblies, and precision instrumentation. With Class 3A thread fit and standardized 82° countersink angle, these screws ensure consistent flush mounting while the hex drive style guarantees reliable torque transmission during installation in confined spaces.
Specification Summary & Compliance
Manufactured to exacting Class 3A thread fit tolerances with UNF (Unified National Fine) 0-80 threading and 1" length configuration. Compliant with ASME B18.3 dimensional standards and ASTM F835 mechanical properties. Meets environmental regulations including RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance for unrestricted international use. The black-oxide surface treatment enhances corrosion resistance while maintaining electrical conductivity requirements.
