S-92421A192 8-32 x 3/8" 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 grip and torque application with a fully knurled round head design, eliminating the need for tools in manual adjustments
- Excellent corrosion resistance and electrical conductivity from high-quality brass material, ideal for sensitive electronic and marine environments
- Quick and secure fastening with 8-32 UNC coarse threading and Class 2A fit, ensuring reliable engagement and reduced cross-threading risks
- Enhanced stability and alignment provided by the flared collar design, preventing over-tightening and damage to mounted components
- Full 3/8" thread length for maximum holding power and versatility across various material thicknesses
- Compliance with major environmental regulations including RoHS 3 and REACH, ensuring safe use in global markets
- Right-hand thread direction for intuitive, standard installation compatible with common assembly practices
Professional Applications & Engineering Value
Engineered for precision and durability, this brass thumb screw addresses critical needs in electronics, instrumentation, and machinery where frequent adjustments are required. The knurled head provides a non-slip surface, enabling secure hand-tightening even in low-visibility or confined spaces, while the flared collar distributes clamping force evenly to protect delicate surfaces from marring. Its 8-32 UNC coarse thread and Class 2A fit ensure consistent performance in vibration-prone applications, reducing maintenance downtime. The fully threaded design offers flexibility for varying panel depths, making it a reliable choice for prototyping, enclosures, and access panels where tool-less access and RoHS compliance are mandatory.
Specification Summary & Compliance
This thumb screw features a 3/8" length with fully threaded 8-32 UNC coarse threads meeting Class 2A dimensional tolerances for reliable fit. The round head with knurled texture measures 13/32" in diameter and 9/64" in height, complemented by a flared collar of 3/8" diameter and 3/16" height. It is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and safety standards for industrial and commercial use.
