S-91746A415 1/4"-20 x 1 1/2" Thumb Screws
Thumb Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Enhanced manual grip with precision knurled round head design for easy installation and removal without tools
- Superior corrosion resistance from 18-8 stainless steel construction, ideal for humid or demanding environments
- High load-bearing capacity with 80,000 psi tensile strength for secure fastening in heavy-duty applications
- Quick assembly efficiency using coarse UNC 1/4"-20 threads that resist cross-threading and enable rapid engagement
- Durable thread integrity ensured by Class 2A fit and Rockwell B83 hardness for repeated use without stripping
- Full-length threading provides consistent holding power along the entire 1-1/2" shaft length
- Regulatory compliance with RoHS 3 and REACH standards for safe use across global industrial markets
Professional Applications & Engineering Value
This 18-8 stainless steel thumb screw solves critical industrial challenges where rapid access and corrosion resistance are paramount. The knurled round head delivers exceptional torque application without specialized tools, making it ideal for maintenance panels, machine guards, and electronic enclosures requiring frequent adjustments. Its coarse UNC 1/4"-20 threading prevents jamming in high-vibration environments while the fully threaded design maintains clamping force across varying material thicknesses. Engineers specify this component for industrial equipment, automotive assemblies, and marine applications where the combination of 80,000 psi tensile strength and chemical resistance ensures long-term reliability under mechanical stress and exposure to moisture, oils, and chemicals.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 2A thread fit and UNC coarse threading (1/4"-20) ensuring consistent compatibility with industry-standard components. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations guarantees environmental safety and unrestricted use in international markets. The 18-8 stainless steel composition provides inherent corrosion resistance while maintaining Rockwell B83 hardness for durability across repeated installation cycles.
