S-91744A545 1/4"-20 x 1 1/4" 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
- Effortless hand-tightening with a wide spade head and flanged base for superior grip and torque without tools
- Excellent corrosion resistance provided by 18-8 Stainless Steel, ensuring long-term reliability in harsh environments
- Robust and durable construction with a fully threaded shank for maximum engagement and holding power
- Quick and easy installation facilitated by coarse UNC threads and a right-hand thread direction for standard assembly
- Precise and reliable fit due to the Class 2A thread fit, ensuring consistent performance and interchangeability
- Compliance with major environmental regulations including RoHS 3 and REACH, making it suitable for regulated industries
- Versatile 1 1/4" length ideal for a wide range of panel, cover, and fixture applications requiring a secure, hand-operated fastener
Professional Applications & Engineering Value
This 1/4"-20 Spade Head Thumb Screw is engineered to solve critical assembly challenges where tool access is limited or speed is essential. The 18-8 Stainless Steel material provides inherent corrosion resistance, making it ideal for outdoor equipment, electronic enclosures, and machinery in humid or corrosive industrial settings. The combination of the large spade head and integrated flange distributes clamping force over a wider area, reducing surface damage and preventing loosening from vibration. Its fully threaded design and coarse UNC thread ensure rapid installation and high pull-out strength, streamlining maintenance and assembly processes for panels, access doors, and adjustable components. This design directly addresses the need for reliable, repeatable, and tool-free fastening solutions.
Specification Summary & Compliance
This thumb screw features a 1/4"-20 UNC thread with a Class 2A fit for consistent dimensional accuracy and reliable assembly. It is manufactured from 18-8 Stainless Steel and is fully threaded. The product is confirmed to be compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations.
