S-91249A042 2-56 x 1/8" 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 coated 18-8 Stainless Steel, ideal for harsh environments and reducing replacement frequency.
- High tensile strength of 70,000 psi ensures reliable, long-lasting fastening under significant mechanical stress.
- Excellent thread engagement with a Class 2A fit and coarse UNC thread, providing easier assembly and reduced cross-threading risk.
- Wide compatibility with standard UNC threaded components, simplifying sourcing and inventory for various projects.
- Enhanced durability with a Rockwell B70 hardness, maintaining thread integrity and head drive through repeated use.
- Secure and efficient installation using the Phillips No. 1 drive, minimizing cam-out and speeding up assembly processes.
- Full threading along the 1/8" length offers maximum grip and uniform clamping force across the entire fastener.
Professional Applications & Engineering Value
Engineered for demanding industrial settings, these 2-56 UNC Rounded Pan Head Phillips Screws in Black-Oxide 18-8 Stainless Steel address common challenges like corrosion-induced failure and assembly inefficiency. The coarse thread design ensures quick, secure fastening in materials where fine threads might strip, while the Class 2A thread fit provides consistent performance with standard tapped holes. The pan head with a rounded profile offers a low-profile, secure fit that distributes load effectively, making these screws ideal for electronics enclosures, machinery panels, and automotive components where vibration resistance and corrosion resistance are critical. Their compliance with major standards ensures they meet rigorous quality and safety requirements in global supply chains.
Specification Summary & Compliance
This screw features a 2-56 UNC coarse thread with a Class 2A thread fit for standard dimensional accuracy and ease of assembly. It is manufactured in accordance with ASME B18.6.3 specifications and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring it is free from hazardous substances and suitable for use in regulated industries.
