S-91771A071 0-80 x 3/4" ASME B18.6.3 Stainless Steel Phillips Flat Head Screws
Stainless Steel Phillips 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
- Superior corrosion resistance with passivated 18-8 stainless steel construction, ideal for harsh industrial environments
- Exceptional mechanical strength with 80,000 psi tensile strength and Rockwell B80 hardness for reliable load-bearing performance
- Precision thread engagement through Class 2A UNF fine threads ensuring secure, vibration-resistant fastening
- Optimized flush mounting with standard 82° countersink angle and flat head design for seamless surface integration
- Enhanced installation efficiency with Phillips No. 0 drive providing positive torque control during assembly
- Full-threaded 3/4" length delivers maximum grip range and adjustment flexibility in confined spaces
- Regulatory compliance assurance meeting ASME B18.6.3, RoHS 3, and REACH standards for global industrial applications
Professional Applications & Engineering Value
Engineered for precision assemblies requiring flush surface profiles and corrosion resistance, these 0-80 UNF flat head machine screws solve critical challenges in electronics enclosures, instrumentation, and aerospace components. The passivated 18-8 stainless steel construction provides inherent protection against chemical exposure and galvanic corrosion, while the Class 2A fine thread fit maintains clamping force under vibration. The fully threaded design ensures consistent engagement depth across varying material thicknesses, and the 82° countersink angle permits optimal seating in standardized chamfers. These Phillips drive fasteners are specified where space-constrained applications demand reliable performance without surface protrusion.
Specification Summary & Compliance
This 3/4" machine screw maintains Class 2A thread tolerances per UNF specifications with right-hand threading and fine thread spacing. Manufacturing conforms to ASME B18.6.3 dimensional standards, while material compliance satisfies RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. The flat head profile and Phillips No. 0 drive are precision-machined to ensure consistent installation torque and seating performance.
