S-91745A583 5/16"-18 x 1" Thumb Screws

Key Features & Benefits at a Glance

• Effortless hand-tightening with spade-shaped thumb head for quick assembly and disassembly without tools
• Superior corrosion resistance from 18-8 stainless steel construction, ideal for harsh industrial environments
• Reliable coarse thread engagement with UNC threading for faster installation and reduced cross-threading risks
• Precise Class 2A thread fit ensuring consistent performance and compatibility with standard UNC nuts
• Full-length threading provides maximum grip and adjustment flexibility along the entire 1" length
• Right-hand thread direction offers intuitive installation following conventional tightening practices
• Environmentally compliant meeting RoHS 3 and REACH standards for safe use in regulated industries

Professional Applications & Engineering Value

These 18-8 stainless steel thumb screws deliver exceptional value in applications requiring frequent access or adjustment. The spade head design enables rapid hand-tightening where tool access is limited, while the coarse UNC threading ensures quick engagement in soft materials or blind holes. The fully threaded right-hand configuration maintains consistent clamping force across the entire length, preventing loosening in high-vibration environments. Ideal for industrial equipment panels, electronic enclosures, and machinery requiring regular maintenance, these screws eliminate the need for specialized tools while providing the corrosion resistance necessary for demanding applications. The combination of Class 2A thread fit and robust material construction ensures long-term reliability in both indoor and outdoor settings.

Specification Summary & Compliance

This thumb screw features 5/16"-18 UNC coarse threading with Class 2A thread fit for standard industrial applications. The inch-system measurement provides 1" length with full threading and spade head configuration (11/16" height, 7/8" width). Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industries. The right-hand thread direction and coarse thread spacing follow established UNC standards for reliable performance and compatibility.