S-98704A605 1/4"-20 x 3/8" Thumb Screws
Thumb Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Enhanced grip and torque application with knurled acetal plastic head for slip-resistant manual operation in various conditions
- Superior corrosion resistance due to 18-8 stainless steel construction, ensuring longevity in humid or corrosive industrial environments
- Precise and secure fastening with Class 3A thread fit and UNC coarse threading, reducing cross-threading risks and improving assembly reliability
- Quick and tool-free adjustments featuring a low-profile round head and hex drive, enabling easy hand-tightening or tool-assisted installation
- Broad thermal compatibility with a head temperature range of 32° to 180° F, suitable for diverse operational settings without performance loss
- Full threading for maximum holding power along the entire 3/8" length, providing consistent clamping force and vibration resistance
- Compliance with environmental and safety standards including RoHS 3 and REACH, ensuring safe use in regulated industries
Professional Applications & Engineering Value
This 1/4"-20 thumb screw combines 18-8 stainless steel with a black finish and knurled acetal plastic head to address common industrial challenges like frequent adjustments and exposure to moisture. The UNC coarse thread and Class 3A fit ensure rapid installation and high tensile strength, minimizing downtime in assembly lines. Ideal for industrial applications such as machinery panels, electronic enclosures, and equipment requiring tool-less maintenance, its low-profile design and fully threaded body prevent loosening under vibration, enhancing operational safety and efficiency in demanding environments.
Specification Summary & Compliance
This thumb screw adheres to UNC thread standards with a Class 3A thread fit for precise dimensional accuracy. It is manufactured with fully threaded coarse spacing and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material reliability in professional use.
