S-90876A560 1/4"-20 Thumb Nuts
Thumb Nuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Finish & Compliance Parameters
Geometric Parameters
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Key Features & Benefits at a Glance
- Enhanced grip and torque application with standard wing profile for easy hand-tightening in tight spaces
- Superior corrosion resistance through zinc-plated steel construction, extending service life in harsh environments
- Reliable thread engagement with UNC coarse threads and Class 2B fit, ensuring consistent performance and reducing cross-threading risks
- Quick installation and adjustment with right-hand thread direction and coarse thread spacing, saving assembly time
- Stable mounting base with 1/2" diameter, providing secure fastening and load distribution
- Broad industrial compatibility with inch system measurements, fitting standard equipment and replacement parts
- Environmental and regulatory safety through RoHS 3 and REACH compliance, meeting global industrial standards
Professional Applications & Engineering Value
This zinc-plated steel thumb nut delivers exceptional value in industrial settings where rapid assembly and disassembly are critical. The UNC coarse thread design prevents jamming and enables quick adjustments in high-vibration applications like machinery maintenance, electrical enclosures, and automotive assemblies. With its standard wing profile and 1/2" base diameter, it offers a secure, non-slip grip even with gloved hands, reducing tool dependency and improving workflow efficiency. The zinc plating provides a protective barrier against moisture and chemicals, making it ideal for outdoor equipment, manufacturing lines, and HVAC systems where durability and corrosion resistance are paramount. Engineered for Class 2B thread fit, it ensures precise alignment and reliable performance in repetitive use scenarios.
Specification Summary & Compliance
This thumb nut features a 1/4"-20 UNC coarse thread with Class 2B fit for consistent dimensional accuracy and easy assembly. It adheres to inch system standards with a base diameter of 1/2", width of 1 3/8", and height of 5/8". The product is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and safe for industrial use worldwide.
