S-90058A203 8-32 x 1 1/2" Tamper-Resistant Tri-Groove-Drive Steel Round Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with zinc-plated steel construction, ensuring long-term reliability in harsh industrial environments.
• Superior holding power from fully threaded UNC coarse design, providing enhanced grip and stability in demanding applications.
• High tensile strength of 80,000 psi and Rockwell C28 hardness for reliable performance under heavy loads and stress.
• Precise Class 3A thread fit ensures tight, secure connections, reducing the risk of loosening in critical assemblies.
• Efficient installation with Tri-Groove drive style, offering better torque transfer and reduced cam-out for faster, safer fastening.
• Versatile rounded head design with high profile for smooth, flush finishes, minimizing snagging and improving aesthetics.
• Wide compatibility with standard 8-32 UNC coarse threads, making them ideal for replacement or new builds in various sectors.

Professional Applications & Engineering Value

These 8-32 UNC coarse thread screws are engineered to address common industrial challenges, such as vibration-induced loosening and corrosion in demanding settings. Made from zinc-plated steel, they offer robust protection against rust and wear, extending service life in construction, machinery, and outdoor equipment. The fully threaded design and Class 3A fit provide superior clamping force, reducing maintenance needs in high-stress applications. With a Tri-Groove drive, installation is swift and secure, minimizing tool slippage and enhancing worker safety. Ideal for assembly lines, structural frameworks, and heavy-duty fastening, these screws deliver consistent performance where precision and durability are critical.

Specification Summary & Compliance

This product adheres to UNC coarse thread standards with precise Class 3A thread fit for accurate engagement. Dimensions include a 1 1/2" length, 8-32 thread size, and 0.164" thread diameter, ensuring compatibility with industry specifications. Manufactured from zinc-plated steel, it meets general industry guidelines for corrosion resistance and is compliant with common regulations such as RoHS and REACH for environmental safety. The Rockwell C28 hardness and 80,000 psi tensile strength align with ASME and other mechanical standards, guaranteeing reliable performance in professional applications.