S-92427A587 5/16"-18 x 1 1/2" Thumb Screws

Key Features & Benefits at a Glance

• Effortless manual tightening with a comfortable spade head design (7/8" width, 11/16" height) for quick adjustments without tools
• Superior corrosion resistance due to durable brass construction, ideal for harsh industrial environments
• Reliable thread engagement with Class 2A UNC coarse threads ensuring consistent, secure fastening
• High mechanical strength with 50,000 psi tensile strength and Rockwell B40 hardness for long-lasting performance
• Full threading along the 1 1/2" length provides maximum grip and versatility in various material thicknesses
• Environmental compliance meeting RoHS 3 and REACH standards for safe use in regulated applications
• Right-hand thread direction for standard, intuitive installation in industrial and electronic assemblies

Professional Applications & Engineering Value

This 5/16"-18 brass thumb screw is engineered to address common challenges in manual fastening, such as tool-free access and corrosion resistance. The spade head design offers an ergonomic grip, reducing operator fatigue during frequent adjustments in industrial equipment, electronic enclosures, and mechanical assemblies. Constructed from brass, it inherently resists rust and galvanic corrosion, making it suitable for humid or chemically exposed environments. The UNC coarse threads and Class 2A thread fit ensure quick installation and reliable holding power, minimizing the risk of cross-threading. Fully threaded along its length, it accommodates varying material depths, providing consistent clamping force in applications like panel mounting, access covers, and prototyping setups where manual fastening solutions are preferred for maintenance efficiency.

Specification Summary & Compliance

This thumb screw features a 5/16"-18 UNC coarse thread with Class 2A dimensional accuracy for reliable fit and interchangeability. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring it is free from hazardous substances. Manufactured to standard inch system specifications, it includes a right-hand thread direction and full threading for consistent performance in industrial and electronic applications.