S-94567A510 1/4"-20 x 1/2" 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
- Enhanced grip and torque application with a knurled round head design, allowing for easy manual tightening and loosening without tools in industrial settings.
- Lightweight yet durable construction using 6061 Aluminum with Rockwell B60 hardness, offering excellent corrosion resistance and strength for repeated use.
- Reliable thread engagement with UNC coarse spacing and Class 2A fit, ensuring quick assembly and secure fastening in various materials.
- High tensile strength of 40,000 psi provides dependable performance under stress, reducing the risk of failure in demanding applications.
- Fully threaded shank for consistent holding power along the entire 1/2" length, ideal for adjustable or deep-set installations.
- Flared collar profile increases bearing surface area, distributing load evenly and minimizing damage to mounted components.
- Compliance with RoHS 3 and REACH regulations ensures environmental safety and suitability for global industrial supply chains.
Professional Applications & Engineering Value
This 1/4"-20 thumb screw is engineered to address common challenges in assembly and maintenance, such as the need for quick, tool-free adjustments in tight spaces. The 6061 Aluminum material offers a optimal balance of strength and weight, reducing overall system mass while resisting corrosion in environments like electronics enclosures, machinery panels, and prototyping setups. The knurled head and right-hand UNC coarse threads enable rapid installation and removal, saving time in production lines or field service. Its fully threaded design and Class 2A fit ensure precise alignment and vibration resistance, making it a reliable choice for applications requiring frequent access, such as access panels, jigs, and consumer electronics, where durability and regulatory compliance are critical.
Specification Summary & Compliance
This thumb screw adheres to UNC thread standards with a Class 2A thread fit for consistent dimensional accuracy and interchangeability. It meets RoHS 3 (2015/863/EU) compliance under exemption 6(b)-II for lead in aluminum alloys and is REACH (EC 1907/2006) compliant, ensuring it aligns with environmental and safety regulations for industrial fasteners.
