S-93015A229 3/8"-16 x 4" Thumb Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
• Excellent hand-tightening capability thanks to the knurled head texture for maximum grip without tools
• Enhanced durability and strength with Rockwell B83 hardness and 80,000 psi tensile strength for heavy-duty applications
• Secure and precise fastening with 3/8"-16 UNC coarse threads and Class 2A fit for reliable performance
• Low-profile round head design minimizes protrusion while providing comfortable manual operation
• Versatile partial threading and extended tip ensure easy alignment and firm engagement in various materials
• Compliance with environmental standards including RoHS 3 and REACH for safe, sustainable use

Professional Applications & Engineering Value

This low-profile knurled thumb screw in 18-8 stainless steel addresses common industrial challenges such as frequent adjustments and exposure to corrosive conditions. The coarse UNC threads and Class 2A fit provide quick, reliable fastening in machinery, electronics, and assembly fixtures, reducing installation time. The knurled head ensures a firm grip even with gloves, enhancing safety and efficiency. Its partially threaded design with an extended tip facilitates precise placement, preventing cross-threading and improving load distribution in heavy-duty applications.

Specification Summary & Compliance

This thumb screw features a 3/8"-16 UNC thread with Class 2A fit for standard dimensional accuracy, a 4" length, and partial threading. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material reliability in industrial use.