S-91781A052 0-80 x 1/8" ASME B18.6.3 Stainless Steel Slotted Flat Head Screws
Stainless Steel Slotted 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 18-8 stainless steel construction and passivated finish, ensuring longevity in harsh environments.
- Exceptional mechanical strength with 80,000 psi tensile strength and Rockwell B80 hardness for reliable, high-stress applications.
- Precise fit and secure fastening due to Class 2A thread fit and UNF fine threading, minimizing loosening under vibration.
- Flush, low-profile installation enabled by the undercut flat head and 82° countersink angle for smooth surface finishes.
- Wide compatibility and easy installation with standard slotted drive and right-hand thread, suitable for common assembly tools.
- Full thread engagement along the 1/8" length for maximum grip and load distribution in thin materials.
- Regulatory compliance and quality assurance meeting ASME B18.6.3, RoHS 3, and REACH, ensuring safe and standardized use.
Professional Applications & Engineering Value
Engineered for precision assemblies, these 0-80 UNF flat head screws in 18-8 stainless steel address critical needs in electronics, aerospace, and medical devices where space is limited and reliability is paramount. The passivated finish enhances corrosion resistance, extending service life in humid or chemically exposed settings. With a fine thread and Class 2A fit, they provide vibration-resistant fastening in thin-section components, while the undercut flat head ensures a seamless fit without protrusion. Ideal for applications demanding high tensile strength and compliance with industry standards, these screws reduce maintenance and improve assembly integrity in precision engineering projects.
Specification Summary & Compliance
This screw adheres to Class 2A thread fit and UNF (Unified National Fine) standards, ensuring dimensional accuracy and interchangeability. Manufactured in compliance with ASME B18.6.3 specifications, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations for environmental safety. The 82° countersink angle and fully threaded design support consistent performance in standardized inch-based assemblies.
