S-91613A457 1/4"-20 x 1 1/2" 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
- Exceptional corrosion resistance with 316 stainless steel construction and passivated finish, ideal for harsh chemical and marine environments.
- High tensile strength of 100,000 psi ensures reliable, long-lasting fastening under demanding mechanical loads.
- Precise Class 2A thread fit with UNC coarse threading for easy installation and secure engagement in a wide range of materials.
- Fully threaded 1-1/2" length provides maximum grip and holding power across the entire shank.
- Durable Rockwell B100 hardness maintains thread integrity and resists wear during repeated use.
- Fillister head with slotted drive offers a high, narrow profile for deep counterbores and simple tool engagement.
- Compliance with ASME B18.6.3, RoHS, and REACH guarantees quality, safety, and environmental standards for industrial procurement.
Professional Applications & Engineering Value
This 316 stainless steel fillister head slotted screw is engineered to solve critical fastening challenges in corrosive and high-stress environments. The combination of UNC coarse threads and Class 2A fit ensures quick, reliable installation in machinery, marine equipment, and chemical processing systems, reducing assembly time and preventing thread stripping. The passivated finish enhances the innate corrosion resistance of 316 stainless steel, making it suitable for applications exposed to moisture, salts, and industrial chemicals. Its high, narrow rounded head fits perfectly into counterbored holes, providing a flush surface and improved aesthetic in precision assemblies. Ideal for OEMs and maintenance teams requiring durable, fully threaded screws that withstand vibration and tensile loads without compromising performance.
Specification Summary & Compliance
This screw adheres to ASME B18.6.3 specifications, with a 1/4"-20 UNC thread size, Class 2A thread fit for standard tolerance, and coarse thread spacing for robust engagement. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), ensuring it meets stringent environmental and safety regulations for industrial use.
