S-90165A311 Length 1/4" Thumb Screws

Key Features & Benefits at a Glance

• Enhanced grip and torque application with 3/4" diameter head for secure manual tightening without tools
• Superior durability and load-bearing capacity from high-strength steel construction
• Precision thread engagement with 5/16"-18 thread compatibility for reliable fastening performance
• Corrosion resistance and longevity through quality steel material and compliant surface treatment
• Environmental and workplace safety compliance meeting RoHS 3 and REACH regulatory standards
• Space-efficient design with 1/4" length for applications with limited clearance
• Reduced assembly time and maintenance through quick-adjust thumb-operated design

Professional Applications & Engineering Value

This heavy-duty steel thumb screw solves critical industrial challenges where frequent adjustments, tool-free operation, and reliable clamping force are essential. The 3/4" diameter head provides exceptional grip surface for manual torque application in machinery access panels, electronic enclosures, and production jigs. Engineered with 5/16"-18 thread compatibility, it ensures precise engagement with mating components, preventing cross-threading and maintaining consistent pressure in vibration-prone environments. The steel construction delivers excellent mechanical strength for repeated use, while RoHS and REACH compliance guarantees safe operation in sensitive electronics and regulated industries. This thumb screw eliminates the need for specialized tools, streamlining maintenance workflows and reducing downtime in manufacturing, automation, and equipment servicing applications.

Specification Summary & Compliance

This thumb screw features standard 5/16"-18 UNC thread with Class 2A tolerance for reliable fit. Manufactured from steel with dimensions of 3/4" diameter head and 1/4" length. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring hazardous substance restriction adherence for global industrial applications.