S-96966A748 5/16"-18 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
- Tool-free installation with comfortable spade head design for quick manual tightening and adjustment
- Exceptional corrosion resistance through zinc-plated steel construction for extended service life in demanding environments
- Superior load-bearing capability with 40,000 psi tensile strength to withstand heavy-duty mechanical stress
- Optimized thread engagement through UNC coarse spacing and Class 2A fit for reliable fastening in various materials
- Enhanced durability with Rockwell B55 hardness to resist wear and deformation during repeated use
- Maximum grip surface through fully threaded design along the entire 1½" length for secure positioning
- Regulatory compliance with RoHS 3 standards for environmentally responsible manufacturing
Professional Applications & Engineering Value
This zinc-plated steel thumb screw delivers exceptional performance in industrial settings where frequent adjustments and reliable fastening are critical. The combination of UNC coarse thread spacing and Class 2A thread fit ensures quick installation and secure holding power in wood, plastic, and metal applications. The spade head design provides ample surface area for comfortable hand-tightening without tools, making it ideal for access panels, machinery guards, and electronic enclosures requiring regular maintenance. The 40,000 psi tensile strength and Rockwell B55 hardness guarantee the screw maintains structural integrity under vibration and mechanical stress, while the zinc plating offers corrosion protection in humid or industrial atmospheres.
Specification Summary & Compliance
Manufactured to precise Class 2A thread tolerances with UNC 5/16"-18 coarse thread specifications and right-hand threading. The fastener meets RoHS 3 (2015/863/EU) compliance standards and features full threading along the entire 1½" length. Construction utilizes zinc-plated steel with spade head configuration (7/8" width × 11/16" height) for optimal manual operation and corrosion resistance.
