S-93005A589 3/8"-16 x 3" Thumb Screws

Key Features & Benefits at a Glance

• Enhanced manual operation with a large 2" four-arm head providing superior grip and torque application without tools
• Exceptional corrosion resistance thanks to the black-oxide steel finish, extending service life in demanding environments
• High-strength performance with 180,000 psi tensile strength and Rockwell C40 hardness for reliable load-bearing capacity
• Quick and secure fastening enabled by coarse UNC threads and Class 2A fit, reducing installation time and preventing cross-threading
• Full-length threading versatility allowing adjustment along the entire 3" length for flexible positioning
• Extended tip design facilitating easier alignment and initial engagement in assembly applications
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for safe use in regulated industries

Professional Applications & Engineering Value

This black-oxide steel thumb screw delivers critical advantages in industrial settings where manual adjustments and frequent access are required. The coarse UNC 3/8"-16 thread combined with Class 2A fit ensures rapid installation and removal while maintaining secure fastening in vibration-prone equipment. The four-arm head design provides exceptional torque capability for hand-tightening operations, eliminating the need for tools in maintenance applications. With its fully threaded 3" length and extended tip, it offers superior alignment and positioning flexibility in machinery, electrical enclosures, and manufacturing jigs. The black-oxide finish provides essential corrosion protection, making it suitable for industrial environments where moisture and chemicals are present.

Specification Summary & Compliance

This thumb screw features precision 3/8"-16 UNC coarse threads with Class 2A thread fit for consistent performance. Manufacturing complies with industry standards for dimensional accuracy, including the specified thread diameter of 0.375" and thread length of 2-13/16". The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for industrial applications worldwide.