S-97568A636 3/8"-16 x 3" Thumb Screws

Key Features & Benefits at a Glance

• Effortless manual tightening and loosening with the large 1-13/16" wing head, eliminating the need for tools in frequent adjustments.
• Superior corrosion resistance provided by the zinc-plated iron material, ensuring long-term durability in various industrial environments.
• Reliable and secure fastening due to the fully threaded 3" length and Class 2A thread fit, minimizing loosening under vibration.
• Quick installation and high compatibility with the 3/8"-16 UNC coarse thread, a widely used standard in North American equipment.
• Enhanced user comfort and grip from the wing head shape, allowing for maximum torque application by hand without slippage.
• Consistent dimensional accuracy with tight head diameter tolerance, ensuring proper fit and function in assembly applications.
• Safe for use in regulated industries as it is RoHS 3 and REACH compliant, meeting strict environmental and health standards.

Professional Applications & Engineering Value

This zinc-plated iron thumb screw is engineered to solve common industrial challenges where tool-free, rapid access is critical. The fully threaded design and 3/8"-16 UNC coarse thread provide excellent holding power and resistance to vibration loosening in applications like machinery guards, access panels, and electronic enclosures. The large wing head offers superior manual grip, reducing assembly time and the risk of stripped fasteners. Made from zinc-plated iron, it delivers reliable corrosion resistance, making it ideal for environments exposed to moisture or chemicals. Its compliance with RoHS and REACH ensures it meets global regulatory requirements, providing peace of mind for OEMs and maintenance teams in sectors such as manufacturing, automotive, and telecommunications.

Specification Summary & Compliance

This thumb screw adheres to UNC coarse thread standards with a Class 2A thread fit for consistent dimensional accuracy and ease of assembly. It is fully threaded with a length of 3 inches and a right-hand thread direction. The product is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free of hazardous substances and suitable for use in environmentally conscious industries.