S-91500A300 0-80 x 1/8" 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 316 stainless steel construction and passivated finish for extended service life in harsh environments
- Exceptional mechanical strength delivering 70,000 psi tensile strength and Rockwell B80 hardness for reliable fastening performance
- Precision thread engagement with Class 2A fit and UNF fine threads ensuring secure, vibration-resistant connections
- Optimized flush mounting featuring undercut flat head design with 82° countersink angle for seamless surface integration
- Enhanced drive stability through Phillips No. 0 drive system preventing cam-out during installation
- Full threading capability providing maximum grip length across the entire 1/8" shank
- Regulatory compliance assurance meeting ASME B18.6.3 specifications and environmental standards including RoHS 3 and REACH
Professional Applications & Engineering Value
These 0-80 UNF flat head screws deliver critical performance advantages in precision engineering applications where space constraints and material compatibility are paramount. The combination of 316 stainless steel material and passivated finish provides exceptional resistance to chemical exposure and atmospheric corrosion, making these fine thread screws ideal for marine, chemical processing, and medical equipment applications. The undercut flat head profile ensures proper seating in countersunk holes while maximizing surface contact, preventing loosening under vibration. With fully threaded design and Class 2A thread fit, these machine screws maintain consistent clamping force in thin materials and delicate assemblies where precise torque control is essential for component integrity.
Specification Summary & Compliance
Manufactured to exacting dimensional standards with Class 2A thread fit tolerance and UNF (Unified National Fine) thread form. Complies with ASME B18.6.3 mechanical and dimensional specifications. Meets environmental regulations including RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) standards. Features 82° countersink angle and right-hand thread direction with full threading along the 1/8" length.
