S-91781A644 3/8"-16 x 5" 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, ideal for harsh industrial environments.
- High tensile strength of 80,000 psi ensures reliable, heavy-duty fastening for demanding applications.
- Precise Class 2A thread fit provides smooth assembly and consistent engagement, reducing installation time.
- 82° countersink angle and flat head design allows for a flush, secure fit in tapered seats, minimizing protrusion.
- Partially threaded shank offers optimal grip and clamping force where full threading isn't required.
- Coarse UNC thread pattern enables quick installation and high resistance to vibration loosening.
- Compliance with ASME B18.6.3, RoHS 3, and REACH guarantees quality, safety, and environmental standards are met.
Professional Applications & Engineering Value
These 3/8"-16 UNC flat head slotted screws are engineered to solve critical fastening challenges in industrial settings. The 18-8 stainless steel material, combined with a passivated finish, provides exceptional resistance to rust and chemical exposure, making them suitable for machinery, construction, and marine applications. The partially threaded design ensures strong clamping on materials without compromising structural integrity, while the 82° countersink angle allows for a seamless, low-profile installation that reduces snagging and improves safety. With a Rockwell B80 hardness and coarse thread spacing, these screws deliver reliable performance in high-vibration environments, ensuring long-term durability and reduced maintenance costs for B2B clients.
Specification Summary & Compliance
This product features a Class 2A thread fit for precise dimensional accuracy and smooth assembly, adhering to UNC thread standards. It meets ASME B18.6.3 manufacturing specifications for consistency and reliability. Additionally, it is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and restricted substance adherence.
