S-91794A589 5/16"-18 x 1 3/4" ASME B18.6.3 Stainless Steel Fillister Head Slotted Screws
Stainless Steel Fillister 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.
- High-strength performance with 70,000 psi tensile strength and Rockwell B55 hardness for reliable, heavy-duty fastening.
- Easy installation and removal thanks to the slotted drive and right-hand UNC coarse threading, reducing assembly time.
- Precise thread fit with Class 2A tolerance ensuring consistent engagement and vibration resistance in machinery.
- Enhanced head design featuring a high, narrow rounded fillister profile for a flush or slightly raised finish.
- Full threading along the 1 3/4" length provides maximum grip and load distribution across applications.
- Compliance with industry standards including ASME B18.6.3, RoHS, and REACH for safe, regulated use.
Professional Applications & Engineering Value
This 5/16"-18 UNC rounded fillister head screw is engineered to address common industrial challenges, such as corrosion and mechanical stress. Made from 18-8 stainless steel with a passivated finish, it resists rust and chemical exposure in demanding settings like machinery assembly, automotive systems, and outdoor equipment. The coarse thread and Class 2A fit ensure quick, secure fastening, reducing the risk of loosening under vibration. Its slotted drive allows for straightforward manual installation, while the fully threaded design enhances holding power in high-stress applications, making it a reliable choice for engineers prioritizing durability and efficiency.
Specification Summary & Compliance
This screw adheres to precise dimensional standards, including Class 2A thread fit and UNC coarse threading with a size of 5/16"-18. It meets ASME B18.6.3 specifications for manufacturing consistency and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material integrity for industrial use.
