S-91510A153 1/4"-20 x 3/4" 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
- Quick hand-tightening capability with comfortable wing head design for efficient assembly without tools
- Superior corrosion resistance from zinc-plated steel construction for extended service life in demanding environments
- Reliable coarse threading with UNC 1/4"-20 specification ensures fast engagement and secure fastening
- Precision Class 2A thread fit guarantees consistent performance and compatibility with standard components
- Full threading along the 3/4" length provides maximum adjustability and holding power
- Generous 0.61" head diameter offers excellent grip surface for comfortable manual operation
- Compliance with environmental regulations including RoHS 3 and REACH for safe industrial applications
Professional Applications & Engineering Value
This zinc-plated steel thumb screw delivers exceptional value in applications requiring frequent adjustments or quick access panels. The wing head design eliminates the need for tools, significantly reducing maintenance time in industrial settings, electronics enclosures, and machinery access points. The coarse UNC threading ensures rapid installation while the Class 2A thread fit maintains precise engagement with mating components. The zinc plating provides a durable barrier against corrosion, making these thumb screws ideal for environments where moisture or chemical exposure is a concern. The fully threaded design allows for maximum thread contact throughout the entire 3/4" length, ensuring secure fastening in various material thicknesses.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 2A thread fit tolerance and UNC 1/4"-20 coarse threading. The screw features a right-hand thread direction and fully threaded configuration along the entire 3/4" length. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across industrial applications. The wing head thumb screw maintains consistent quality with a head diameter of 0.61" and head height of 29/64" for reliable manual operation.
