S-96966A624 1/4"-20 x 3/4" Thumb Screws

Key Features & Benefits at a Glance

• Tool-free installation and adjustment with comfortable spade head design for manual tightening in tight spaces
• Enhanced corrosion resistance through zinc plating, extending service life in industrial environments
• Superior load-bearing capacity with 40,000 psi tensile strength for reliable fastening under stress
• Quick assembly and secure fit with coarse UNC threads and Class 2A fit, reducing cross-threading risks
• Consistent hardness and durability with Rockwell B55 rating, maintaining performance through repeated use
• Maximum thread engagement from fully threaded design, providing uniform holding power along the entire length
• Environmental compliance assurance with RoHS 3 certification for safe use in regulated industries

Professional Applications & Engineering Value

These 1/4-20 thumb screws deliver exceptional value in applications requiring frequent adjustments or tool-free access. The zinc-plated steel construction provides reliable corrosion protection for electrical enclosures, machinery guards, and production equipment. The spade head offers superior grip compared to standard thumb screws, enabling secure tightening even with gloved hands. With coarse UNC threading and Class 2A fit, these fasteners resist vibration loosening while allowing rapid installation. The fully threaded design ensures maximum engagement in threaded inserts and tapped holes, making them ideal for panel mounting, access covers, and jig fixtures where repeated access is necessary without compromising structural integrity.

Specification Summary & Compliance

These thumb screws feature precise Class 2A thread fit with UNC coarse threading (1/4"-20) and right-hand thread direction. Manufacturing complies with standard inch system specifications, including 3/4" length and Rockwell B55 hardness. The product is fully RoHS 3 (2015/863/EU) compliant, containing no restricted hazardous substances, making them suitable for electronics, industrial equipment, and international manufacturing applications requiring environmental regulation adherence.