S-92427A540 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
- Easy hand-tightening operation with a wide spade head design, reducing the need for tools and speeding up assembly in tight spaces.
- Superior corrosion resistance due to the brass material, ensuring long-term reliability in humid or corrosive industrial environments.
- High tensile strength of 50,000 psi provides secure fastening and resistance to mechanical stress in demanding applications.
- Rockwell B40 hardness offers excellent durability and wear resistance, maintaining thread integrity over repeated use.
- Coarse UNC threading with Class 2A fit ensures quick engagement and reliable performance, minimizing cross-threading risks.
- Full 3/4" length and complete threading allow for versatile installation depths and consistent grip across various materials.
- Compliance with RoHS 3 and REACH regulations guarantees environmental safety and suitability for global markets.
Professional Applications & Engineering Value
This 1/4-20 brass thumb screw is engineered to address common challenges in industrial settings, such as the need for quick, tool-free adjustments and corrosion resistance. The spade head design enables effortless hand-tightening, ideal for applications where frequent access is required, like electronic enclosures, machinery panels, and laboratory equipment. Made from durable brass, it withstands exposure to moisture and chemicals, preventing rust and ensuring consistent performance. The UNC coarse thread and Class 2A fit provide fast, secure fastening with reduced installation time, while the full threading along the 3/4" length offers flexibility for varying material thicknesses. This screw is a reliable choice for B2B procurement in sectors prioritizing efficiency, durability, and regulatory compliance.
Specification Summary & Compliance
This thumb screw adheres to UNC thread standards with a Class 2A thread fit for precise dimensional accuracy and reliable engagement. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free from hazardous substances. The manufacturing follows industry norms for inch system measurements, with a tensile strength of 50,000 psi and Rockwell B40 hardness, supporting use in rigorous engineering applications.
