S-90079A225 10-32 x 1" Thumb Screws

Key Features & Benefits at a Glance

• Enhanced grip and torque application thanks to the fully knurled head texture, allowing for secure manual tightening without tools
• Superior corrosion resistance and durability provided by the black-oxide steel finish, extending service life in demanding environments
• High mechanical strength and reliability with a tensile strength of 70,000 psi and Rockwell B84 hardness, preventing stripping and deformation
• Precise and secure fastening ensured by the 10-32 UNF fine thread with Class 2A fit, offering excellent engagement in threaded components
• Optimized for confined spaces due to the low-profile round head design, ideal for panels and assemblies with limited clearance
• Flexible installation depth with a partially threaded shank and extended tip, enabling easier alignment and controlled penetration
• Compliance with international environmental standards including RoHS 3 and REACH, ensuring safe and sustainable use in global markets

Professional Applications & Engineering Value

This black-oxide steel thumb screw is engineered to address common industrial challenges such as frequent adjustments, vibration loosening, and corrosion in harsh conditions. The knurled low round head provides exceptional manual grip, reducing the need for tools and speeding up maintenance on electronic enclosures, machinery panels, and instrumentation. The 10-32 UNF fine thread and Class 2A fit deliver precise, reliable engagement in components requiring fine adjustment, while the partial threading and extended tip facilitate quick alignment and secure fastening. With a robust 70,000 psi tensile strength and corrosion-resistant finish, it ensures long-term performance in industrial, automotive, and aerospace applications, minimizing downtime and replacement costs.

Specification Summary & Compliance

This thumb screw adheres to UNF thread standards with a Class 2A thread fit for consistent dimensional accuracy. It is manufactured from black-oxide steel with a hardness of Rockwell B84 and tensile strength of 70,000 psi. The product is fully compliant with RoHS 3 (2015/863/EU) under exemption 6(a)-I and REACH (EC 1907/2006) regulations, ensuring environmental safety and material traceability.