S-97763A315 2-56 x 1/4" ASME B18.3 Stainless Steel Button Head Hex-Drive Screws
Stainless Steel Button Head Hex-Drive 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 Black-Oxide 18-8 Stainless Steel construction, ideal for harsh industrial environments
- Exceptional holding power from 70,000 psi tensile strength and Rockwell B55 hardness for reliable, long-term fastening
- Precise thread engagement with Class 3A fit and UNC coarse threads, ensuring vibration resistance and easy installation
- Efficient installation and removal using the 0.050" hex drive, compatible with standard tools for reduced assembly time
- Full thread coverage along the 1/4" length maximizes grip and distributes load evenly across applications
- Compliance with major standards including ASME B18.3, RoHS 3, and REACH, guaranteeing safety and regulatory adherence
- Durable rounded button head design provides a low-profile finish that resists snagging and enhances aesthetics
Professional Applications & Engineering Value
This 2-56 UNC thread rounded head screw is engineered to address critical challenges in industrial settings, such as vibration loosening and environmental degradation. The Black-Oxide 18-8 Stainless Steel material offers excellent resistance to rust and oxidation, making it suitable for outdoor equipment, machinery, and electronic enclosures exposed to moisture. With a coarse thread spacing and Class 3A thread fit, it ensures tight, secure connections that withstand dynamic loads, reducing maintenance needs. The fully threaded design and hex drive style allow for quick, tool-friendly installation in tight spaces, enhancing productivity in assembly lines and repair operations while meeting stringent industry standards.
Specification Summary & Compliance
This screw features precise Class 3A thread fit per UNC standards, with dimensions including a 1/4" length, 0.086" thread diameter, and coarse thread spacing. It is manufactured in compliance with ASME B18.3 specifications and adheres to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material integrity for global industrial use.
