S-91249A054 2-56 x 3/8" 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
- Enhanced corrosion resistance with Black-Oxide coating on 18-8 stainless steel, ideal for humid or chemically aggressive environments
- High tensile strength of 70,000 psi ensures reliable performance under heavy loads and vibration
- Rockwell B70 hardness provides excellent wear resistance and durability for repeated use
- Coarse UNC threads with Class 2A fit offer quick assembly and secure fastening in various materials
- Fully threaded design allows for maximum grip and uniform stress distribution along the entire length
- Pan head with No. 1 Phillips drive facilitates easy installation and removal with standard tools
- Compliance with ASME B18.6.3, RoHS 3, and REACH ensures quality, safety, and environmental standards are met
Professional Applications & Engineering Value
This 2-56 UNC rounded pan head Phillips screw is engineered to address common industrial challenges such as corrosion, mechanical stress, and assembly efficiency. The Black-Oxide 18-8 stainless steel construction provides superior protection against rust and oxidation, making it suitable for applications in electronics, machinery, and outdoor equipment where exposure to moisture or chemicals is a concern. The coarse thread design ensures rapid installation and strong holding power in softer materials or pre-tapped holes, reducing the risk of cross-threading. With a fully threaded right-hand configuration and Class 2A thread fit, it delivers consistent clamping force and vibration resistance, minimizing loosening in dynamic environments. Ideal for industrial screws and machine screws uses, this product enhances reliability and reduces maintenance needs in demanding settings.
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 manufacturing specifications for consistency and performance. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, it meets environmental and safety requirements for restricted substances.
