S-91746A796 5/16"-18 x 3" Thumb Screws

Key Features & Benefits at a Glance

• Effortless hand-tightening with a knurled head for superior grip in tight spaces, reducing tool dependency.
• Exceptional corrosion resistance from 18-8 Stainless Steel, ideal for harsh industrial environments.
• High tensile strength of 80,000 PSI ensures reliable performance under heavy loads and vibration.
• Low-profile round head design minimizes protrusion, perfect for applications with clearance constraints.
• Coarse 5/16"-18 UNC threading provides quick assembly and secure fastening in various materials.
• Partially threaded shank allows for precise clamping without unnecessary thread engagement.
• Compliance with RoHS 3 and REACH ensures environmental safety and global regulatory acceptance.

Professional Applications & Engineering Value

This low-profile thumb screw in 18-8 Stainless Steel addresses common challenges in industrial settings, such as frequent adjustments and exposure to corrosive elements. The knurled head offers a non-slip surface for quick hand installation, eliminating the need for tools in maintenance-heavy applications like machinery panels, electronic enclosures, and prototyping fixtures. Its coarse UNC thread ensures rapid engagement and resistance to loosening under vibration, while the partially threaded design provides controlled clamping force. With a Rockwell B83 hardness and robust construction, it delivers long-term durability in automotive, aerospace, and manufacturing assemblies, reducing downtime and replacement costs.

Specification Summary & Compliance

This thumb screw features a 5/16"-18 UNC thread with Class 2A fit for consistent dimensional accuracy and easy assembly. It adheres to industry standards for coarse threading and is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free from hazardous substances. The specifications include a 3" length and slotted drive option for additional versatility.