S-91858A634 3/8"-16 x 2 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
- Superior corrosion resistance with 316 Stainless Steel construction and passivated finish, ideal for harsh industrial environments
- Reliable high-strength performance delivering 70,000 psi tensile strength and Rockwell B80 hardness for demanding applications
- Precise installation and secure fit ensured by Class 2A thread fit and UNC coarse threading
- Optimal flush mounting with standard flat head profile and 82° countersink angle for clean, professional finishes
- Enhanced assembly efficiency through partially threaded design and slotted drive for controlled engagement
- Long-term durability with inch-system dimensions and right-hand thread direction for consistent performance
- Full regulatory compliance meeting ASME B18.6.3 specifications, RoHS 3, and REACH standards
Professional Applications & Engineering Value
These 3/8"-16 UNC Flat Head Screws in 316 Stainless Steel provide critical solutions for industrial applications where corrosion resistance and structural integrity are paramount. The passivated finish significantly enhances surface durability against chemical exposure and oxidation, while the partially threaded design allows for precise clamping force distribution in assembled components. Engineered with UNC coarse threading and Class 2A fit, these screws ensure reliable engagement in various materials without stripping or cross-threading. Ideal for machinery, marine equipment, and chemical processing installations, they deliver consistent performance where standard fasteners would fail. The flat head profile with standard countersink enables seamless integration into surfaces, maintaining both aesthetic appeal and functional reliability in visible assemblies.
Specification Summary & Compliance
Manufactured to exact inch system dimensions including 3/8"-16 UNC thread size with Class 2A tolerance for precision fit. Complies with ASME B18.6.3 manufacturing specifications for flat head screws. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance standards. Features right-hand thread direction, coarse thread spacing, and partial threading up to minimum 1½" length. Hardness maintained at Rockwell B80 with tensile strength rated at 70,000 psi.
