S-91737A311 2-56 x 1/8" ASME B18.6.3 Stainless Steel Fillister Head Phillips Screws
Stainless Steel Fillister 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 with 18-8 stainless steel construction and passivated finish, ideal for harsh industrial environments.
- High tensile strength of 80,000 psi ensures reliable, durable fastening under heavy loads and vibration.
- Rockwell B85 hardness provides excellent wear resistance and reduces thread stripping during installation.
- Fully threaded coarse UNC design allows for quick, secure engagement and strong holding power in various materials.
- Class 2A thread fit guarantees consistent, precise assembly with standard nuts and tapped holes.
- High, narrow rounded fillister head offers a low-profile, flush finish while accommodating Phillips No. 1 drive for easy torque application.
- Compliance with ASME B18.6.3, RoHS 3, and REACH ensures adherence to industry standards and environmental safety regulations.
Professional Applications & Engineering Value
These 2-56 UNC rounded fillister head Phillips machine screws are engineered to address common industrial challenges such as corrosion, vibration loosening, and space constraints. The 18-8 stainless steel material combined with a passivated finish significantly enhances longevity in moist or chemical-exposed settings, reducing maintenance costs. The coarse thread spacing and fully threaded design provide rapid installation and robust grip in plastics, metals, and composites, making them ideal for electronics, machinery, and automotive assemblies. Their high rounded head profile ensures a sleek, low-obstruction fit, while the Phillips drive facilitates efficient manual or automated driving, streamlining production workflows.
Specification Summary & Compliance
This screw features precise Class 2A thread fit and adheres to UNC coarse thread standards for consistent performance. Manufactured in accordance with ASME B18.6.3 specifications, it guarantees dimensional accuracy and reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and safe for various industrial applications.
