S-90181A632 3/8"-16 x 2" Thumb Screws

Key Features & Benefits at a Glance

• Easy hand-tightening operation with the wide spade head design, eliminating the need for tools in quick-assembly applications
• Superior durability and wear resistance due to hardened steel construction with Rockwell B55 hardness
• High load-bearing capacity with 40,000 psi tensile strength, ensuring reliable performance under stress
• Precise and secure fit from Class 2A thread fit, reducing cross-threading and providing consistent engagement
• Versatile coarse threading (UNC) allows for faster installation and better performance in softer materials
• Full threading along the 2" length offers maximum adjustability and grip depth in various applications
• Environmentally compliant with RoHS 3 standards, making it suitable for regulated industrial environments

Professional Applications & Engineering Value

This 3/8"-16 UNC thumb screw is engineered to address common challenges in industrial settings where tool-free, rapid fastening is essential. The spade head design provides ample surface area for hand-tightening, reducing installation time and minimizing the risk of stripped fasteners. Constructed from hardened steel with a Rockwell B55 hardness, it resists deformation and wear in high-usage scenarios, such as machinery panels, electronic enclosures, and prototyping fixtures. The coarse UNC threads and Class 2A fit ensure quick, reliable engagement without sacrificing precision, while the fully threaded 2" length allows for flexible adjustment in varying material thicknesses. Ideal for maintenance, assembly lines, and equipment requiring frequent access, this screw combines ease of use with robust tensile strength (40,000 psi) to prevent failure under vibration or load.

Specification Summary & Compliance

This thumb screw adheres to UNC thread standards with a Class 2A thread fit for consistent dimensional accuracy and ease of assembly. It is fully threaded with a right-hand, coarse thread pattern (3/8"-16) and complies with RoHS 3 (2015/863/EU) regulations, ensuring it is free of hazardous substances for use in industrial and electronic applications.