S-98816A252 10-32 x 5/8" Thumb Screws

Key Features & Benefits at a Glance

• Superior grip and easy manual operation with a knurled round head design that prevents slipping during tightening and loosening
• Excellent corrosion resistance and electrical conductivity due to the high-quality brass material, ideal for various industrial environments
• High tensile strength of 50,000 psi ensures reliable fastening and durability under significant load conditions
• Precision fine threading (10-32 UNF) with Class 2A fit provides smooth engagement and secure connections in precision assemblies
• Fully threaded shank and right-hand thread direction allow for maximum adjustability and compatibility with standard components
• Robust Rockwell B78 hardness offers excellent wear resistance and long service life in frequent adjustment applications
• Compliance with RoHS 3 regulations ensures environmental safety and meets global regulatory standards for hazardous substances

Professional Applications & Engineering Value

This 10-32 UNF brass thumb screw is engineered to solve common challenges in precision assembly and frequent-adjustment scenarios. The knurled round head with a raised profile provides an ergonomic, non-slip surface, enabling quick manual operations without tools—perfect for electronics, instrumentation, and machinery where tool-free access is critical. Constructed from brass, it offers inherent corrosion resistance and electrical conductivity, making it suitable for electrical enclosures, marine applications, and corrosive environments. The fine thread spacing and Class 2A thread fit ensure precise, vibration-resistant connections, reducing the risk of loosening in dynamic settings. Fully threaded and right-hand oriented, it delivers consistent clamping force and ease of installation, enhancing efficiency in industrial thumb screw applications from prototyping to production lines.

Specification Summary & Compliance

This thumb screw adheres to UNF thread standards with a Class 2A thread fit for precise dimensional accuracy and smooth assembly. It is manufactured to meet RoHS 3 (2015/863/EU) compliance under exemption 6(c) for lead in copper alloys, ensuring environmental and safety standards are upheld. Key specifications include a thread size of 10-32, length of 5/8 inch, and full threading for uniform performance.