S-90113A160 1/4"-20 x 5/8" 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
- Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and long-term reliability
- Exceptional mechanical strength offering 80,000 psi tensile strength and Rockwell B83 hardness for demanding applications
- Easy hand or tool installation via the external hex head combined with thumb screw design for quick adjustments
- Reliable coarse threading with UNC 1/4"-20 and Class 2A fit ensuring secure fastening and vibration resistance
- Fully threaded shank providing maximum grip and uniform load distribution across the entire length
- Compliance with environmental standards including RoHS 3 and REACH, meeting global regulatory requirements
- Right-hand thread direction for standard, intuitive tightening in industrial assembly processes
Professional Applications & Engineering Value
Engineered for high-performance assembly, this 1/4"-20 UNC thumb screw in 18-8 stainless steel addresses critical industrial challenges such as corrosion, mechanical stress, and frequent adjustments. The external hex drive allows for both manual and tool-assisted installation, reducing assembly time in machinery, electronics enclosures, and automotive components. Its fully threaded coarse UNC design ensures rapid engagement and high clamp force, minimizing loosening under vibration. With excellent tensile strength and hardness, it withstands repetitive use without deformation, making it a dependable choice for maintenance-heavy and outdoor applications where durability and regulatory compliance are paramount.
Specification Summary & Compliance
This thumb screw adheres to UNC coarse thread standards with a Class 2A thread fit for consistent precision and interchangeability. Key dimensions include a 1/4"-20 thread size, 5/8" length, and external hex head (1/2" width, 3/8" height). It is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free of restricted substances and suitable for global supply chains.
