S-97568A595 5/16"-18 x 2 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
- Easy hand-tightening operation with large 1 3/4" wing head design for maximum grip without tools
- Enhanced corrosion resistance through zinc-plated iron construction for extended service life in industrial environments
- Quick installation and removal with coarse 5/16"-18 UNC threading that resists cross-threading
- Precise thread engagement with Class 2A thread fit ensuring reliable fastening in various applications
- Full-length threading versatility across the entire 2 1/2" length for adjustable positioning and secure holds
- Environmental compliance assurance meeting RoHS 3 and REACH standards for safe, regulated use
- Right-hand thread standardization for intuitive installation compatible with common industrial equipment
Professional Applications & Engineering Value
This zinc-plated iron thumb screw delivers exceptional value in applications requiring frequent adjustments or tool-free operation. The substantial 1 3/4" wing head provides superior leverage for hand-tightening, eliminating the need for tools in maintenance panels, access covers, and machinery guards. The 5/16"-18 UNC coarse threading ensures rapid installation while resisting jamming and cross-threading in high-vibration environments. With full threading along the 2 1/2" length, engineers gain flexibility in mounting depth while maintaining consistent clamping force. The zinc plating offers reliable protection against oxidation in industrial settings, making these thumb screws ideal for electrical enclosures, production equipment, and assembly fixtures where quick access and corrosion resistance are critical.
Specification Summary & Compliance
This thumb screw features 5/16"-18 UNC coarse threads with Class 2A thread fit for standard industrial tolerance requirements. The wing head design maintains a head diameter tolerance of -0.0156" to 0.0156" for consistent performance. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring hazardous substance restrictions are met for industrial applications.
