S-91744A624 3/8"-16 x 1" Thumb Screws

Key Features & Benefits at a Glance

• Effortless hand-tightening with a large 15/16" high spade head for superior grip and torque without tools
• Enhanced stability and load distribution from the integrated 0.69" flange, preventing loosening under vibration
• Durable corrosion resistance provided by 18-8 Stainless Steel, ideal for harsh industrial environments
• Quick and reliable coarse threading with UNC 3/8"-16 and Class 2A fit for fast assembly and secure fastening
• Full thread engagement along the 1" length ensures maximum holding power and consistent performance
• Compliance with strict environmental standards including RoHS 3 and REACH for safe, sustainable use
• Right-hand thread design for intuitive, standard installation in various applications

Professional Applications & Engineering Value

This heavy-duty 3/8"-16 thumb screw is engineered to address the need for rapid, tool-free fastening in industrial settings where accessibility and speed are critical. The 18-8 Stainless Steel construction offers excellent resistance to rust and corrosion, making it suitable for outdoor equipment, machinery panels, and electronic enclosures exposed to moisture. The flanged spade head design increases the bearing surface, reducing the risk of surface damage and providing a secure, non-slip grip for hand tightening. With its coarse UNC threading and Class 2A fit, this screw ensures quick installation and reliable performance in applications requiring frequent adjustments or maintenance, such as in assembly jigs, access covers, and clamping devices. Its fully threaded body delivers uniform stress distribution, enhancing longevity and reducing the need for replacements in demanding environments.

Specification Summary & Compliance

This thumb screw adheres to UNC thread standards with a 3/8"-16 coarse thread and Class 2A fit for precise dimensional accuracy and ease of assembly. It is manufactured from 18-8 Stainless Steel and features a fully threaded 1" length with a right-hand thread direction. The product complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets environmental and safety requirements for industrial use.