S-90179A626 3/8"-16 x 1 1/4" 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 operation with spade-shaped head design providing superior grip and torque application without tools
- Exceptional durability through high-strength steel construction with Rockwell B55 hardness rating
- Reliable fastening performance with 40,000 psi tensile strength for demanding industrial applications
- Quick installation and removal with coarse UNC threads and Class 2A fit ensuring smooth engagement
- Increased bearing surface from 0.688" flange diameter distributing load and preventing surface damage
- Full-thread engagement along the entire 1-1/4" length for maximum holding power in various material thicknesses
- Environmental compliance with RoHS 3 regulations for safe use across multiple industries
Professional Applications & Engineering Value
This heavy-duty thumb screw addresses critical challenges in industrial assembly and maintenance where frequent adjustments are required. The spade head design combined with coarse UNC threading enables rapid installation and removal cycles without compromising structural integrity. Engineered with Rockwell B55 hardness steel and 40,000 psi tensile strength, it withstands repeated use in mechanical fixtures, access panels, and equipment enclosures. The integrated flange provides superior load distribution, preventing damage to sensitive surfaces while the fully threaded right-hand configuration ensures consistent engagement depth. Ideal for manufacturing equipment, industrial machinery, and electronic enclosures requiring tool-free maintenance access.
Specification Summary & Compliance
This thumb screw features precision 3/8"-16 UNC coarse threads manufactured to Class 2A fit standards for consistent performance across industrial applications. The 15/16" head height and 13/16" head width provide optimal manual handling dimensions. Manufacturing complies with RoHS 3 (2015/863/EU) regulations, ensuring environmental safety in electronic and industrial sectors. The combination of right-hand threading and fully threaded construction delivers reliable fastening performance meeting industrial mechanical fastener requirements.
