S-91771A052 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
- Exceptional corrosion resistance with passivated 18-8 stainless steel construction, ideal for harsh environments and long-term reliability.
- Precise flush installation thanks to the undercut flat head and 82° countersink angle, ensuring a smooth, professional finish.
- Superior holding power from the 80,000 psi tensile strength and Rockwell B80 hardness, providing dependable performance in demanding applications.
- Optimized drive engagement with the Phillips No. 0 drive style, reducing cam-out risk for efficient and secure installation.
- Reliable thread performance with a Class 2A fit and UNF fine threads, ensuring consistent clamping force and vibration resistance.
- Full-length threading for maximum grip along the entire 1/8" length, enhancing connection integrity in thin materials.
- Guaranteed compliance and safety by meeting ASME B18.6.3 standards and being RoHS 3 and REACH compliant for global use.
Professional Applications & Engineering Value
This 0-80 UNF flat head screw is engineered to solve critical challenges in precision assemblies, such as electronics, instrumentation, and aerospace components. The passivated 18-8 stainless steel material provides excellent resistance to oxidation and chemical exposure, extending service life in corrosive or high-humidity environments. Its undercut flat head design allows for a seamless, low-profile fit, minimizing protrusion and reducing stress concentrations. Combined with the fine UNF thread and Class 2A fit, it delivers superior vibration resistance and precise torque control, preventing loosening in dynamic applications. Ideal for industries requiring reliable, compact fasteners, this screw ensures durability and compliance with stringent industrial standards.
Specification Summary & Compliance
This fastener adheres to Class 2A thread fit tolerances and the UNF (Unified National Fine) thread standard, ensuring dimensional accuracy and interchangeability. It is manufactured in compliance with ASME B18.6.3 specifications and meets regulatory requirements including RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), confirming its suitability for use in environmentally conscious and regulated markets.
