S-91781A066 1-64 x 1/4" 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 and passivated finish, ideal for harsh environments and long-term reliability.
- Exceptional mechanical strength offering 80,000 psi tensile strength and Rockwell B80 hardness for high-stress applications.
- Precise and reliable fastening ensured by Class 2A thread fit and UNC coarse thread profile, reducing cross-threading risks.
- Flush, low-profile installation with a standard 82° countersink angle flat head, providing a smooth surface finish.
- Broad compatibility and easy installation thanks to the slotted drive style and right-hand thread direction.
- Full-length threading for maximum grip and holding power across the entire 1/4" length.
- Compliance with major industry standards including ASME B18.6.3, ensuring consistent quality and performance.
Professional Applications & Engineering Value
This 1-64 UNC flat head slotted screw is engineered to address critical challenges in industrial assembly, such as vibration loosening and environmental degradation. Constructed from 18-8 Stainless Steel with a passivated finish, it provides excellent resistance to rust and chemical exposure, making it suitable for machinery, electronics, and outdoor equipment. The coarse UNC thread and Class 2A fit ensure quick, secure installation in various materials, reducing assembly time and improving joint integrity. Its flat head design with an 82° countersink allows for seamless integration into surfaces, preventing snagging and enhancing safety in automated systems. Ideal for applications demanding high tensile strength and regulatory compliance, this screw delivers reliable performance in demanding engineering environments.
Specification Summary & Compliance
This screw features precise Class 2A thread fit and adheres to UNC coarse thread standards with a size of 1-64 and length of 1/4". It is manufactured in compliance with ASME B18.6.3 specifications and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulatory requirements, ensuring environmental safety and material quality.
