S-90165A524 1/2"-13 x 2 13/16" Thumb Screws
Thumb Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Maximum hand-tightening torque with a large 2-1/2" four-arm head for superior grip in high-vibration environments
- Enhanced durability and corrosion resistance from black-oxide steel construction with Rockwell C40 hardness
- Precise, reliable fastening ensured by Class 2A UNC coarse threads with right-hand orientation
- Reduced surface marring thanks to the removable swivel tip with 10° maximum angle adjustment
- Exceptional load-bearing capacity with 180,000 psi tensile strength for heavy-duty industrial applications
- Full-length thread engagement across the 2-13/16" length for versatile positioning and secure holds
- Compliance with global environmental standards including RoHS 3 and REACH for safe, sustainable usage
Professional Applications & Engineering Value
This heavy-duty thumb screw is engineered to solve critical industrial fastening challenges where tool-free operation and high strength are paramount. The black-oxide steel construction provides excellent corrosion resistance, extending service life in harsh environments like manufacturing floors or outdoor equipment. The four-arm head design offers maximum torque application by hand, reducing installation time while the removable swivel tip prevents damage to sensitive surfaces—ideal for frequent adjustments in machinery, jigs, and fixtures. With its Class 2A UNC coarse threads and full threading, it ensures quick, secure engagement in wood, metal, or plastic components, making it a versatile solution for maintenance, assembly, and prototyping workflows.
Specification Summary & Compliance
This thumb screw adheres to inch system measurements with precise Class 2A thread fit and UNC 1/2"-13 coarse threading. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance standards, ensuring environmental safety. Manufacturing specifications include a tensile strength of 180,000 psi, Rockwell C40 hardness, and fully threaded 2-13/16" length for consistent performance in industrial applications.
