S-99862A350 1/4"-20 Thumb Nuts

Key Features & Benefits at a Glance

• Superior grip and torque application with standard wing profile design for hand-tightening without tools
• Enhanced corrosion resistance through premium zinc alloy construction for extended service life
• Reliable thread engagement with UNC coarse threading ensuring quick assembly and vibration resistance
• Precision thread fit meeting Class 2B specifications for consistent performance and reduced cross-threading risks
• Optimized dimensional stability with 31/64" base diameter and 1/2" height for secure fastening in confined spaces
• Environmental compliance assurance with full RoHS 3 and REACH adherence for sustainable operations
• Right-hand thread compatibility for standard installation procedures across industrial equipment

Professional Applications & Engineering Value

This zinc alloy thumb nut delivers exceptional value in industrial settings where rapid assembly and disassembly are critical. The UNC coarse thread design prevents binding in high-vibration environments while the standard wing profile enables secure hand-tightening where tool access is limited. Engineered with Class 2B thread fit, it maintains consistent clamping force in machinery, electrical enclosures, and production equipment. The zinc alloy material provides excellent durability against environmental exposure, making these thumb nuts ideal for maintenance panels, adjustable components, and temporary fixtures across manufacturing, automotive, and facility management applications.

Specification Summary & Compliance

Manufactured to precise inch system dimensions with 1/4"-20 UNC coarse threads and Class 2B thread fit tolerance. Features 31/64" base diameter, 1" width, and 1/2" height. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring safe use across regulated industries. Right-hand thread direction follows industry-standard installation practices.