S-90015A251 4-40 x 1/2" Stainless Steel Oversized Truss Head Slotted Screws
Stainless Steel Oversized Truss Head Slotted 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
- Corrosion-resistant performance with 18-8 Stainless Steel construction and passivated finish, ideal for harsh industrial environments.
- Exceptional holding power from 80,000 psi tensile strength and Rockwell B85 hardness, ensuring reliable fastening under stress.
- Easy installation and removal with a low rounded truss head design that provides a wide bearing surface and slotted drive for simple tool engagement.
- Precise thread fit using UNC coarse threads with Class 2A tolerance, offering consistent engagement and reduced cross-threading risks.
- Full threading along the 1/2" length allows for maximum adjustability and secure attachment in various material thicknesses.
- Compliance with environmental regulations including RoHS 3 and REACH, ensuring safe use in regulated industries.
- Right-hand thread direction for standard assembly processes, improving efficiency in high-volume applications.
Professional Applications & Engineering Value
Engineered for demanding settings, these 4-40 UNC screws with a low rounded truss head address common challenges in assembly lines and machinery. The 18-8 Stainless Steel material, enhanced by a passivated finish, resists oxidation and chemical exposure, prolonging service life in moist or corrosive conditions. The coarse UNC thread and Class 2A fit ensure quick, secure fastening with minimal effort, reducing installation time and preventing thread damage. Ideal for industrial applications like electronics enclosures, automotive components, and HVAC systems, these screws provide a robust, fully threaded solution that maintains integrity under vibration and load, supporting efficient production and maintenance workflows.
Specification Summary & Compliance
This screw features a 4-40 UNC coarse thread with Class 2A tolerance for precise fit, a 1/2" length, and fully threaded design. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and safety standards for industrial use.
