S-91781A583 5/16"-18 x 1" 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, ensuring longevity in harsh environments.
- High tensile strength of 80,000 psi and Rockwell B80 hardness for reliable performance in demanding applications.
- Precise Class 2A thread fit and UNC coarse threading for easy installation and secure fastening.
- Flush mounting capability with an 82° countersink angle and standard flat head profile for seamless, professional finishes.
- Full threading along the 1" length provides maximum grip and uniform load distribution.
- Compliance with ASME B18.6.3 and environmental standards like RoHS and REACH for guaranteed quality and safety.
- Durable slotted drive design allows for straightforward manual or tool-driven installation.
Professional Applications & Engineering Value
These 5/16"-18 UNC flat head slotted screws are engineered from 18-8 stainless steel with a passivated finish, offering exceptional resistance to corrosion and wear in industrial settings. Ideal for machinery, automotive assemblies, and structural frameworks, they address common issues like loosening under vibration and environmental degradation. The Class 2A thread fit and coarse UNC threading ensure quick, secure fastening, reducing installation time and maintenance needs. With a flat head design and 82° countersink, they provide a smooth, flush surface, preventing snagging and enhancing safety in high-traffic areas. This combination of durability and precision supports efficient operations in heavy-duty applications, from manufacturing to construction.
Specification Summary & Compliance
This screw features a 5/16"-18 UNC thread with Class 2A fit for precise dimensional accuracy and coarse thread spacing. It is fully threaded, measures 1" in length, and includes an 82° countersink angle. Manufactured to meet ASME B18.6.3 specifications, it complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safety and sustainability in industrial use.
