S-91781A267 2-56 x 1 1/2" 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
- Exceptional corrosion resistance with 18-8 stainless steel construction and passivated finish, ideal for harsh industrial environments
- Superior mechanical strength delivering 80,000 psi tensile strength and Rockwell B80 hardness for reliable load-bearing performance
- Precision thread engagement with Class 2A UNC coarse threads ensuring secure fastening and vibration resistance
- Optimized flush mounting featuring standard 82° countersink angle for seamless surface integration
- Full-threaded design providing maximum grip length and uniform stress distribution
- Industry-standard compliance meeting ASME B18.6.3 specifications for consistent quality and interchangeability
- Environmental responsibility with RoHS 3 and REACH compliance for safe usage in regulated applications
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these 2-56 UNC flat head slotted screws solve critical fastening challenges in machinery, electronics, and precision equipment. The 18-8 stainless steel material combined with passivated finish provides exceptional protection against corrosion and chemical exposure, extending service life in challenging environments. The fully threaded design and coarse UNC thread pattern ensure rapid installation and superior holding power, while the standard 82° countersink angle enables flush mounting in precision assemblies. These flat head machine screws deliver reliable performance where vibration resistance, material compatibility, and dimensional accuracy are paramount for industrial operations.
Specification Summary & Compliance
This 2-56 UNC flat head screw maintains Class 2A thread fit tolerance for precise engagement and features right-hand threading with coarse thread spacing. Manufacturing conforms to ASME B18.6.3 specifications, ensuring dimensional consistency and mechanical performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting current environmental and safety standards for industrial components.
