S-90165A512 3/8"-16 x 1 5/16" Thumb Screws

Key Features & Benefits at a Glance

• Effortless manual operation with a large four-arm thumb head (2" width, 1" height) for quick tightening and loosening without tools
• Enhanced surface durability and corrosion resistance thanks to the black-oxide steel finish, extending service life in industrial environments
• Superior load-bearing capacity with 180,000 psi tensile strength and Rockwell C40 hardness for reliable performance under high stress
• Secure and adaptable fastening with a removable swivel tip that pivots up to 10°, preventing surface damage and ensuring even pressure distribution
• Precise and reliable thread engagement via 3/8"-16 UNC coarse Class 2A threads, designed for easy alignment and vibration resistance
• Full-length threading provides consistent grip along the entire 1 5/16" length, offering versatile mounting depth options
• Compliance with global environmental standards including RoHS 3 and REACH, ensuring safe and sustainable use in regulated industries

Professional Applications & Engineering Value

This Black-Oxide Steel Thumb Screw is engineered to address common industrial challenges such as frequent adjustments, high mechanical stress, and the need for tool-free maintenance. The removable swivel tip minimizes marring on sensitive surfaces, making it ideal for securing panels, machinery guards, and electronic enclosures without compromising finish integrity. Its coarse UNC threading and Class 2A fit ensure rapid installation and robust holding power, even in vibrating environments. With a high tensile strength of 180,000 psi and corrosion-resistant coating, this screw delivers long-term reliability in manufacturing, automotive, and assembly line applications where durability and ease of use are critical.

Specification Summary & Compliance

This thumb screw features precise 3/8"-16 UNC coarse threads with Class 2A tolerance for consistent fit and performance. It adheres to standard inch measurements and includes a removable swivel tip (0.25" length, 7/16" diameter) with a maximum pivot of 10°. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets stringent environmental and safety requirements for industrial use.