S-91185A927 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
- Superior corrosion resistance with 18-8 stainless steel construction for long-lasting performance in demanding environments
- Comfortable manual operation thanks to the ergonomic two-arm black Acetal Plastic head that provides excellent grip without tools
- Precise thread engagement with Class 3A fit UNC coarse threads ensuring reliable fastening in industrial applications
- Wide temperature compatibility with head material rated from 32° to 180° F for versatile usage scenarios
- Full threading capability allowing maximum adjustment range and secure holding power along the entire screw length
- Environmental compliance meeting RoHS 3 and REACH standards for safe use in regulated industries
- Right-hand thread design providing intuitive installation and removal for operators
Professional Applications & Engineering Value
This heavy-duty thumb screw combines the corrosion-resistant properties of 18-8 stainless steel with the durable, low-friction characteristics of black Acetal Plastic to solve critical industrial fastening challenges. The two-arm head design enables quick manual adjustments without tools, making it ideal for applications requiring frequent access or adjustments in machinery, electronics enclosures, and production equipment. The UNC coarse thread spacing with Class 3A fit provides superior thread engagement and vibration resistance, while the fully threaded design ensures maximum holding strength. This combination addresses common pain points in maintenance, assembly lines, and equipment servicing where rapid, tool-free fastening is essential for operational efficiency.
Specification Summary & Compliance
This thumb screw features precise 1/4"-20 UNC coarse threads with Class 3A fit for excellent dimensional accuracy and thread engagement. The fastener is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance standards, ensuring environmental safety and regulatory adherence for industrial applications. The combination of 18-8 stainless steel construction and Acetal Plastic head material provides reliable performance with full threading along the 1 1/4" length for versatile fastening solutions.
