S-91746A744 1/4"-20 x 3/4" Thumb Screws

Key Features & Benefits at a Glance

• Enhanced grip and torque application with knurled head texture for secure manual tightening without tools
• Superior corrosion resistance thanks to 18-8 stainless steel construction, ideal for harsh environments
• High mechanical strength with 80,000 PSI tensile strength and Rockwell B83 hardness for reliable load-bearing performance
• Quick installation and adjustment facilitated by UNC coarse threading and low-profile round head design
• Precise thread engagement ensured by Class 2A thread fit for consistent assembly quality
• Regulatory compliance with RoHS 3 and REACH standards for safe use in regulated industries
• Versatile partial threading allowing for adjustable clamping force in various mounting scenarios

Professional Applications & Engineering Value

This low profile knurled thumb screw in 18-8 stainless steel addresses critical needs in industrial assembly and maintenance. The knurled head provides exceptional manual grip, eliminating slippage during frequent adjustments in machinery, electronic enclosures, and fixtures. Its UNC coarse thread and Class 2A fit ensure rapid installation and reliable holding power, reducing assembly time while maintaining precision. The material's inherent corrosion resistance and 80,000 PSI tensile strength make it suitable for demanding environments, from outdoor equipment to chemical processing units, where durability and tool-free operation are paramount.

Specification Summary & Compliance

This thumb screw features a 1/4"-20 UNC coarse thread with Class 2A thread fit for standardized compatibility and precise engagement. Manufacturing adheres to strict dimensional controls, including a 3/4" length and 11/16" thread length. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material transparency for global industrial applications.