S-94567A300 8-32 x 3/8" Thumb Screws

Key Features & Benefits at a Glance

• Enhanced manual grip and torque application with a knurled round head and flared collar design, reducing tool dependency and speeding up assembly.
• Lightweight yet durable construction from 6061 Aluminum, offering excellent corrosion resistance and a high strength-to-weight ratio for repeated use.
• Reliable and secure fastening ensured by fully threaded, right-hand UNC coarse threads with a Class 2A fit, minimizing cross-threading and providing consistent clamping force.
• Superior mechanical performance with a Rockwell B60 hardness and 40,000 psi tensile strength, capable of withstanding significant operational stress in industrial environments.
• Broad compatibility with inch-system components due to the standardized 8-32 UNC thread size and 3/8" length, facilitating easy integration into existing assemblies.
• Safe for regulated industries as it is RoHS 3 and REACH compliant, meeting strict environmental and health standards for hazardous substances.

Professional Applications & Engineering Value

This 8-32 UNC thumb screw is engineered to address common challenges in equipment maintenance, electronic enclosures, and machinery access panels where frequent adjustments are necessary. The 6061 Aluminum material provides a optimal balance of lightweight properties and corrosion resistance, reducing overall assembly weight without compromising durability. The knurled head texture and flared collar deliver exceptional thumb control, eliminating the need for tools and minimizing slippage during manual tightening—ideal for high-vibration environments. With its coarse thread and Class 2A fit, it ensures quick, reliable engagement in various materials, enhancing productivity in industrial applications such as prototyping, aerospace, and automotive sectors. The fully threaded design and right-hand thread direction further contribute to uniform stress distribution and ease of installation.

Specification Summary & Compliance

This thumb screw adheres to UNC thread standards with an 8-32 thread size and Class 2A thread fit, ensuring precise dimensional accuracy and interchangeability. It is manufactured with a coarse thread spacing and features a length of 3/8", head diameter of 7/16", and collar diameter of 3/8". The product complies with RoHS 3 (2015/863/EU) under exemption 6(b)-II for lead in aluminum alloys and is REACH (EC 1907/2006) compliant, affirming its suitability for global industrial and electronic uses.