S-90165A424 5/16"-18 x 2 13/16" Thumb Screws

Key Features & Benefits at a Glance

• Enhanced manual operation with a large four-arm head design for superior grip and torque application without tools
• Exceptional durability from Black-Oxide Steel construction offering corrosion resistance and Rockwell C40 hardness for long service life
• High load-bearing capacity with 180,000 psi tensile strength, ideal for heavy-duty industrial applications
• Secure and adjustable fastening thanks to the removable swivel tip that accommodates up to 10° angle variations, preventing surface damage
• Reliable thread engagement with UNC coarse threads and Class 2A fit, ensuring easy installation and vibration resistance
• Versatile compatibility with standard 5/16"-18 threaded components, suitable for a wide range of machinery and equipment
• Compliance with environmental standards including RoHS 3 and REACH, making it safe for regulated industries

Professional Applications & Engineering Value

This heavy-duty thumb screw is engineered to address common industrial fastening challenges, such as frequent adjustments and high-stress environments. The Black-Oxide Steel material provides excellent wear and corrosion resistance, extending the component's lifespan in harsh conditions. Its four-arm head allows for quick, tool-free operation, reducing downtime in maintenance and assembly lines. The removable swivel tip with a 10° maximum angle ensures even pressure distribution on uneven surfaces, minimizing damage to sensitive parts. With a coarse UNC thread and Class 2A fit, it offers reliable performance in applications requiring robust, reusable fasteners, from machinery panels to electronic enclosures. This design enhances efficiency and safety in industrial settings, supporting seamless operations.

Specification Summary & Compliance

This thumb screw adheres to precise dimensional standards, including UNC thread type with Class 2A thread fit for consistent accuracy and ease of use. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free from hazardous substances. The manufacturing process aligns with industry norms for thread spacing and tensile strength verification, providing reliable performance in professional applications.