S-90272A081 2-56 x 1/2" ASME B18.6.3 Steel Pan Head Phillips Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, ensuring long-lasting performance in harsh industrial environments.
• High tensile strength of 60,000 psi provides reliable fastening for demanding applications, reducing the risk of mechanical failure.
• Rockwell B70 hardness offers excellent durability and resistance to wear, extending the screw's service life.
• Fully threaded UNC coarse thread design enables faster installation and secure grip in various materials.
• Class 2A thread fit ensures consistent, precise engagement with standard nuts and tapped holes for reliable assembly.
• Phillips drive with No. 1 size allows for easy, efficient driving with common tools, minimizing installation time.
• Compliance with ASME B18.6.3, RoHS 3, and REACH guarantees adherence to industry standards and environmental safety for global supply chains.

Professional Applications & Engineering Value

These 2-56 UNC zinc-plated steel rounded head Phillips screws are engineered to address common industrial challenges such as corrosion, vibration loosening, and assembly efficiency. The zinc-plated coating provides a robust barrier against moisture and chemicals, making them ideal for outdoor equipment, automotive components, and electronic enclosures. With a coarse thread and fully threaded design, they offer quick, secure fastening in soft materials like plastics and aluminum, reducing the need for precise hole preparation. The pan head style and Phillips drive ensure easy access and driving in confined spaces, streamlining production lines. By combining high tensile strength and standardized dimensions, these screws deliver consistent performance in machinery, consumer appliances, and construction projects, minimizing downtime and maintenance costs.

Specification Summary & Compliance

These screws feature precise Class 2A thread fit per UNC standards, ensuring reliable interchangeability. Dimensions include a 1/2" length, 2-56 thread size, and coarse spacing for optimal performance. Manufactured in compliance with ASME B18.6.3 specifications, they meet rigorous mechanical and dimensional requirements. Additionally, they are RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, supporting safe and sustainable industrial use.