S-96966A630 1/4"-20 x 1 1/2" Thumb Screws

Key Features & Benefits at a Glance

• Tool-free operation with spade head design for quick manual tightening and loosening in confined spaces
• Superior corrosion resistance through zinc-plated steel construction for extended service life in demanding environments
• High load-bearing capacity with 40,000 psi tensile strength and Rockwell B55 hardness for reliable performance under stress
• Fast installation with coarse UNC threads and Class 2A fit ensuring smooth engagement and reduced assembly time
• Full-threaded design providing maximum grip length and uniform stress distribution across the entire fastener
• Regulatory compliance with RoHS 3 standards for environmentally responsible manufacturing and global market acceptance
• Right-hand threading following industry-standard direction for intuitive installation and compatibility with existing equipment

Professional Applications & Engineering Value

These zinc-plated steel thumb screws deliver exceptional value in applications requiring frequent adjustments or quick access panels. The spade head design eliminates the need for tools, making them ideal for maintenance covers, electronic enclosures, and machinery guards where rapid disassembly is critical. The coarse UNC 1/4"-20 threads with Class 2A fit provide reliable engagement in both metal and plastic components, while the 40,000 psi tensile strength ensures structural integrity in vibration-prone environments. The combination of Rockwell B55 hardness and full threading prevents stripping and maintains clamping force in industrial settings, from manufacturing equipment to automotive assemblies.

Specification Summary & Compliance

Manufactured to precise dimensional standards with Class 2A thread fit for consistent performance across UNC coarse thread applications. The 1/4"-20 thread size with right-hand direction follows established industrial specifications. Compliant with RoHS 3 (2015/863/EU) regulations, ensuring restriction of hazardous substances. The 1-1/2" length and fully threaded configuration provide versatile fastening solutions while maintaining mechanical properties through controlled manufacturing processes.