S-91249A046 2-56 x 3/16" ASME B18.6.3 Stainless Steel Pan Head Phillips Screws
Stainless Steel Pan Head Phillips 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 from Black-Oxide 18-8 Stainless Steel, ideal for harsh environments and long-term reliability.
- High tensile strength of 70,000 psi ensures secure, durable fastening under significant mechanical stress.
- Rockwell B70 hardness provides excellent wear resistance and maintains thread integrity during installation.
- Class 2A thread fit with UNC coarse threading allows for easy, quick assembly and reduces cross-threading risks.
- Fully threaded design offers maximum grip and uniform load distribution across the entire fastener length.
- Phillips drive with No. 1 size enables efficient, slip-resistant driving using standard tools, speeding up installation.
- Compliance with ASME B18.6.3, RoHS 3, and REACH guarantees quality, safety, and environmental standards for industrial use.
Professional Applications & Engineering Value
This 2-56 UNC rounded pan head Phillips screw is engineered to address common industrial challenges such as corrosion, vibration loosening, and assembly inefficiency. The Black-Oxide 18-8 Stainless Steel material provides a robust barrier against rust and chemical exposure, making it suitable for applications in electronics, machinery, and outdoor equipment where moisture is a concern. The coarse UNC thread and Class 2A fit ensure reliable engagement in various materials, reducing the risk of stripping and enabling faster installations. With a fully threaded right-hand design and pan head profile, it delivers consistent clamping force and easy access in tight spaces, enhancing productivity in automated or manual assembly lines while meeting strict industry specifications.
Specification Summary & Compliance
This screw features precise Class 2A thread fit per UNC standards, ensuring dimensional accuracy and interchangeability. It adheres to ASME B18.6.3 for manufacturing consistency and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free of hazardous substances. The specifications include a thread size of 2-56 UNC, length of 3/16", and drive size of No. 1 Phillips, providing reliable performance in industrial fastener applications.
