S-90179A632 3/8"-16 x 2" Thumb Screws

Key Features & Benefits at a Glance

• Effortless hand-tightening with the large spade head design, eliminating the need for tools in quick assembly and disassembly scenarios.
• Superior durability and resistance to wear due to the hardened steel construction with a Rockwell B55 hardness rating.
• High mechanical strength with a 40,000 PSI tensile strength, ensuring reliable performance under load in demanding applications.
• Secure and stable fastening provided by the integrated flange, which increases the bearing surface and helps prevent loosening.
• Wide compatibility and easy engagement with the coarse UNC thread and Class 2A fit, facilitating quick installation with standard mating parts.
• Full-length threading for maximum grip and adjustability along the entire 2-inch length of the screw.
• Compliance with environmental regulations by being RoHS 3 compliant, making it suitable for use in regulated industries and global markets.

Professional Applications & Engineering Value

This steel thumb screw is engineered to solve common industrial challenges where tool-less access and robust fastening are critical. The spade head provides a large surface area for maximum torque application by hand, ideal for panels, access doors, and machinery guards that require frequent maintenance. The fully threaded 3/8"-16 UNC coarse thread ensures rapid installation and a secure hold, while the flanged design distributes clamping force effectively, reducing the risk of surface damage and vibration-induced loosening. Manufactured from high-strength steel, it offers excellent resistance to deformation, making it a reliable choice for industrial applications in electronics, automotive, and manufacturing assembly lines where durability and compliance with RoHS standards are mandatory.

Specification Summary & Compliance

This thumb screw adheres to UNC thread standards with a Class 2A thread fit for consistent and reliable engagement. Key dimensional specifications include a 2" length, 3/8"-16 thread size, 0.375" thread diameter, and a flange diameter of 0.688". The product is manufactured to meet RoHS 3 (2015/863/EU) compliance, ensuring it is free from hazardous substances, and is suitable for use in various industrial and commercial applications requiring dependable, high-strength fastening solutions.