S-90200A330 3/8"-16 x 1" Thumb Screws

Key Features & Benefits at a Glance

• Enhanced manual grip and torque application with a fully knurled, high-profile round head for secure handling without tools in industrial environments.
• Superior corrosion resistance and durability thanks to the black-oxide steel finish, extending service life in demanding applications.
• Reliable fastening performance with a tensile strength of 70,000 psi and Rockwell B84 hardness, ensuring consistent load-bearing capacity.
• Quick and precise installation using the coarse UNC 3/8"-16 thread with Class 2A fit, reducing assembly time and improving alignment.
• Full-thread engagement for maximum holding power across the entire 1" length, providing stable connections in machinery and equipment.
• Compliance with environmental and safety standards, including RoHS 3 and REACH, for use in regulated industries without lead concerns.

Professional Applications & Engineering Value

This black-oxide steel thumb screw is engineered to address common challenges in industrial settings, such as the need for tool-free adjustments and resistance to wear. The knurled head design offers a non-slip surface, enabling operators to tighten or loosen the screw quickly in confined spaces, which boosts efficiency in assembly lines or maintenance tasks. Made from robust steel with a UNC coarse thread, it ensures strong engagement in materials like metal or plastic, reducing the risk of stripping. Ideal for applications in machinery, electronics, and automotive systems, this screw provides a dependable solution where frequent access and high tensile strength are critical, minimizing downtime and enhancing operational reliability.

Specification Summary & Compliance

This thumb screw adheres to precise dimensional standards, including a Class 2A thread fit for consistent tolerance and a UNC 3/8"-16 coarse thread profile. It meets manufacturing specifications for a fully threaded 1" length and right-hand threading. Compliance is confirmed with RoHS 3 (2015/863/EU) under exemption 6(a)-I for lead as an alloying element in steel, and REACH (EC 1907/2006) guidelines, ensuring suitability for global industrial use without environmental hazards.