S-93005A160 1/2"-13 x 2 9/16" Thumb Screws

Key Features & Benefits at a Glance

• Maximum hand-tightening capability with a wide 2 1/2" four-arm aluminum head for superior grip and torque without tools
• Enhanced corrosion resistance and durability from the black-oxide steel finish, ideal for demanding industrial environments
• Reliable fastening strength with 70,000 psi tensile strength and Rockwell C40 hardness for high-load applications
• Quick and easy coarse thread engagement using 1/2"-13 UNC threads, reducing installation time in various materials
• Precise component alignment due to the extended tip and partially threaded design, minimizing cross-threading risks
• Consistent thread quality and interchangeability ensured by Class 2A thread fit, meeting standard UNC specifications
• Compliance with environmental regulations as RoHS 3 compliant, supporting sustainable and safe manufacturing practices

Professional Applications & Engineering Value

This black-oxide steel thumb screw is engineered to address common industrial challenges such as frequent adjustments and high-stress conditions. The four-arm aluminum head provides exceptional manual grip, eliminating the need for tools in machinery, enclosures, and fixtures, which speeds up maintenance and reduces downtime. Its coarse UNC threads and Class 2A fit ensure quick, secure fastening in metals and plastics, while the partially threaded shaft with an extended tip aids in precise alignment, preventing damage in sensitive assemblies. With a 70,000 psi tensile strength and corrosion-resistant finish, it delivers long-lasting performance in automotive, electronics, and heavy equipment applications, ensuring reliability under vibration and load.

Specification Summary & Compliance

This thumb screw adheres to UNC coarse thread standards with a Class 2A thread fit for precise dimensional accuracy and interchangeability. Key specifications include a 1/2"-13 thread size, 2 9/16" length, and partial threading with a 0.25" extended tip. It complies with RoHS 3 (2015/863/EU) under exemption 6(a)-I for lead as an alloying element in steel, ensuring environmental safety in industrial use.