S-91500A351 3/8"-16 x 3 1/2" ASME B18.6.3 Stainless Steel Phillips Flat Head Screws
Stainless Steel Phillips 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 in harsh environments due to 316 Stainless Steel construction and passivated finish.
- High-strength performance with a 70,000 psi tensile strength and Rockwell B80 hardness for demanding applications.
- Reliable fastening and easy installation with a standard 82° countersink angle and Phillips No. 4 drive.
- Wide compatibility and secure fit ensured by 3/8"-16 UNC coarse threads and Class 2A thread fit.
- Full-length threading for maximum grip and load distribution across the entire 3 1/2" length.
- Compliance with major industry standards including ASME B18.6.3 for dimensional consistency and reliability.
- Environmentally responsible manufacturing meeting RoHS 3 and REACH regulations.
Professional Applications & Engineering Value
This 3/8"-16 UNC flat head Phillips screw is engineered to solve critical challenges in industrial and marine settings where corrosion resistance and structural integrity are paramount. The 316 Stainless Steel material, combined with a passivated finish, provides exceptional protection against chlorides and acidic conditions, reducing maintenance costs and failure risks. The fully threaded design and coarse UNC thread ensure rapid assembly and high vibration resistance, making it ideal for heavy-duty machinery, construction frameworks, and chemical processing equipment. Its flat head with an 82° countersink offers a flush, secure fit, preventing snagging and improving safety in dynamic operational environments.
Specification Summary & Compliance
This screw adheres to precise dimensional standards with a Class 2A thread fit and UNC coarse threading for reliable engagement. Manufacturing and quality are governed by ASME B18.6.3, ensuring consistent performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming its safety and sustainability for global industrial use.
