S-91510A149 1/4"-20 x 5/8" 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 manual installation and removal with a wide 0.61" wing head design for superior grip without tools
- Enhanced corrosion resistance thanks to zinc-plated steel construction, extending service life in various environments
- Reliable thread engagement with coarse UNC threading and Class 2A fit, reducing cross-threading risks
- Full-length threading ensures consistent holding power along the entire 5/8" length for secure fastening
- Right-hand thread direction provides standard, intuitive tightening for efficient assembly operations
- Compliance with environmental regulations including RoHS 3 and REACH, ensuring safe use in industrial settings
- Durable steel material offers robust strength for repeated adjustments in demanding applications
Professional Applications & Engineering Value
This zinc-plated steel thumb screw with a wing head design addresses common industrial challenges by enabling quick, tool-free adjustments in equipment maintenance, panel access, and machinery setups. The fully threaded 1/4-20 UNC coarse thread and Class 2A fit provide excellent vibration resistance and ease of installation, reducing assembly time and minimizing thread damage. Ideal for industrial and commercial applications such as electronic enclosures, automotive components, and furniture assembly, it ensures reliable fastening where frequent disassembly is required. The corrosion-resistant zinc plating further enhances durability in humid or outdoor environments, making it a versatile choice for engineers seeking efficient, compliant fastening solutions.
Specification Summary & Compliance
This thumb screw features precise UNC coarse threads with Class 2A fit, ensuring standard dimensional accuracy and smooth engagement. It adheres to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, confirming it is free of restricted hazardous substances. Manufactured from zinc-plated steel with a right-hand thread direction and fully threaded design, it meets general industrial fastening requirements for reliability and environmental safety.
