S-90585A017 0-80 x 1/4" ASME B18.3 Stainless Steel Hex Drive Flat Head Screws
Stainless 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
- Superior corrosion resistance with 316 stainless steel construction and passivated finish, ideal for harsh chemical and marine environments
- Exceptional tensile strength rated at 70,000 psi ensures reliable performance under high-stress applications
- Precision Class 3A thread fit provides tighter tolerances for secure, vibration-resistant fastening in critical assemblies
- Optimized flush mounting with standard 82° countersink angle and flat head design for smooth surface finishing
- Enhanced drive stability through hex drive design prevents cam-out and enables high-torque installation
- Full thread coverage along the 1/4" length maximizes grip strength and load distribution
- Regulatory compliance assurance meeting ASME B18.3, RoHS 3, and REACH standards for global industrial use
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these 0-80 UNF flat head screws solve critical fastening challenges in corrosive environments. The 316 stainless steel material combined with passivated finish provides exceptional resistance to chlorides, acids, and extreme temperatures, making them ideal for marine equipment, chemical processing systems, and medical devices. The Class 3A thread fit with fine thread spacing ensures vibration-resistant connections in precision instruments and electronic enclosures where loosening could cause system failure. The hex drive style allows for secure installation in confined spaces, while the 82° countersink angle creates flush surfaces in aerospace components and machinery where aerodynamic or aesthetic considerations are paramount.
Specification Summary & Compliance
Manufactured to ASME B18.3 specifications with Class 3A thread fit tolerance and inch system measurements. Features include: 0-80 UNF fine thread spacing, right-hand thread direction, 0.138" head diameter, 1/4" length, and fully threaded design. Mechanical properties include Rockwell B55 hardness and 70,000 psi tensile strength. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for restricted substance control.
