S-91783A550 1/4"-20 x 2" ASME B18.6.3 Stainless Steel Round Head Slotted Screws
Stainless Steel Round Head Slotted 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, ideal for harsh industrial environments
- Exceptional mechanical strength with 100,000 psi tensile strength and Rockwell B100 hardness for heavy-duty applications
- Reliable thread engagement through Class 2A UNC coarse threads ensuring secure fastening and vibration resistance
- Full-length threading provides maximum grip and load distribution across the entire 2" length
- Standard slotted drive with rounded head profile offers compatibility with common tools and smooth installation
- Industry-standard compliance with ASME B18.6.3 specifications for consistent quality and interchangeability
- Environmental regulation compliance with RoHS 3 and REACH standards for safe, sustainable industrial use
Professional Applications & Engineering Value
This 1/4"-20 UNC fully threaded screw delivers critical engineering solutions where corrosion resistance and structural integrity are paramount. The 18-8 Stainless Steel material combined with passivated finish provides superior protection against chemical exposure and oxidation in marine, food processing, and outdoor applications. The rounded head slotted design prevents snagging while maintaining tool compatibility, and the coarse thread spacing ensures rapid installation in various materials. With 100,000 psi tensile strength, this fastener withstands extreme mechanical stresses in machinery assembly, structural frameworks, and heavy equipment where vibration resistance and long-term reliability are essential.
Specification Summary & Compliance
This rounded head screw features precise Class 2A thread fit with 1/4"-20 UNC coarse threads and right-hand threading direction. Manufacturing strictly adheres to ASME B18.6.3 dimensional standards, ensuring interchangeability and consistent performance. The product is fully compliant with RoHS 3 (2015/863/EU) restrictions on hazardous substances and REACH (EC 1907/2006) regulations for chemical safety, making it suitable for global industrial supply chains and environmentally conscious operations.
