S-91781A058 0-80 x 7/16" 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 long-term reliability in harsh environments
- Precise thread engagement through Class 2A thread fit and UNF fine threading, minimizing vibration loosening and improving assembly accuracy
- High mechanical strength delivering 80,000 psi tensile strength and Rockwell B80 hardness for demanding industrial applications
- Flush mounting capability with standard 82° countersink angle and flat head design, creating smooth surfaces in precision assemblies
- Full-threaded design providing maximum grip length and uniform load distribution across the entire fastener
- Industry-standard compliance with ASME B18.6.3 specifications, ensuring interchangeability and reliable performance
- Environmental regulation adherence meeting RoHS 3 and REACH standards for safe use in regulated industries
Professional Applications & Engineering Value
These 0-80 UNF flat head slotted screws deliver exceptional engineering value in precision applications where space constraints and corrosion resistance are critical. The 18-8 stainless steel material combined with passivated finish provides superior protection against oxidation and chemical exposure, making them ideal for electronics enclosures, medical devices, and marine equipment. The fine UNF threading with Class 2A fit ensures vibration resistance in dynamic assemblies, while the 82° countersink angle allows for flush mounting in tapered recesses. The fully threaded design maximizes holding power in thin materials, solving common fastening challenges in aerospace components, instrumentation, and precision machinery where reliability cannot be compromised.
Specification Summary & Compliance
Manufactured to exacting standards with Class 2A thread fit tolerance and UNF (Unified National Fine) thread specifications. These flat head slotted screws comply with ASME B18.6.3 manufacturing standards and demonstrate full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. The dimensional accuracy includes precise 0-80 thread size, 7/16" length, and standard 82° countersink angle for consistent performance across industrial applications.
