S-99607A224 8-32 x 1 1/4" Thumb Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh industrial environments
• Enhanced manual grip and torque application thanks to the knurled round head design
• High tensile strength of 80,000 psi ensures reliable fastening under significant load and stress
• Robust Rockwell B85 hardness provides excellent durability and resistance to wear and deformation
• Secure and stable seating with the flared collar design, preventing countersinking and improving load distribution
• Quick and easy installation with fully threaded UNC coarse threads and right-hand direction for standard tooling
• Precision Class 2A thread fit guarantees consistent performance and compatibility with standard nuts and tapped holes

Professional Applications & Engineering Value

This 8-32 UNC thumb screw is engineered to solve critical challenges in assembly and maintenance where tool-less operation and reliability are paramount. The 18-8 Stainless Steel material offers exceptional resistance to rust and corrosion, making it suitable for outdoor, marine, and chemical processing equipment. The knurled head texture ensures a non-slip grip, even with gloved hands or in oily conditions, reducing installation time and improving operator safety. The fully threaded design and coarse thread spacing provide strong holding power in a variety of materials, from metal panels to composite assemblies. Its flared collar adds structural integrity, distributing clamp load effectively and protecting sensitive surfaces from damage. Ideal for frequent access panels, electronic enclosures, and machinery guards, this fastener delivers long-term value by minimizing downtime and maintenance costs.

Specification Summary & Compliance

This thumb screw adheres to UNC thread standards with a Class 2A thread fit for precise, interchangeable assembly. It is manufactured to meet stringent industry specifications, ensuring dimensional accuracy and performance reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free of hazardous substances and safe for use in various global markets and sensitive applications.