S-96640A260 2-56 x 1/2" ASME B18.6.3 Stainless Steel Phillips Flat Head Screws
Stainless Steel Phillips Flat Head 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 Black-Oxide 18-8 Stainless Steel, ideal for harsh industrial environments.
- High tensile strength of 80,000 psi ensures reliable performance under heavy loads and vibration.
- Precision Class 2A thread fit guarantees easy installation and secure fastening in machinery.
- Fully threaded design provides maximum grip and uniform stress distribution along the entire length.
- 82° countersink angle with undercut flat head allows for a flush, professional finish in countersunk holes.
- Phillips drive (No. 1 size) offers efficient torque transfer and reduces cam-out during assembly.
- Compliance with ASME B18.6.3, RoHS 3, and REACH ensures safety, reliability, and environmental responsibility.
Professional Applications & Engineering Value
These 2-56 UNC Flat Head Phillips Machine Screws are engineered to address common industrial challenges such as corrosion, mechanical stress, and installation precision. Made from Black-Oxide 18-8 Stainless Steel, they provide excellent resistance to rust and oxidation, making them suitable for applications in electronics, automotive assemblies, and outdoor equipment. The coarse UNC threads and Class 2A fit facilitate quick, secure fastening in materials where vibration resistance is critical. The flat head with undercut profile and 82° countersink angle ensure a smooth, flush mount, reducing protrusion risks and improving aesthetics in finished products. This combination of material durability and design precision supports long-term reliability in demanding environments.
Specification Summary & Compliance
This screw features a 2-56 UNC coarse thread with Class 2A tolerance for precise fit, a length of 1/2", and is fully threaded for consistent performance. It meets ASME B18.6.3 specifications for dimensional accuracy and is 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 uses.
