S-91185A414 1/4"-20 x 1" Thumb Screws

Key Features & Benefits at a Glance

• Superior hand-tightening grip with knurled round head design for secure operation without tools
• Exceptional corrosion resistance from 18-8 stainless steel construction in demanding environments
• Precision thread engagement with Class 3A UNC coarse threads for reliable fastening performance
• Reduced weight and electrical insulation through durable Acetal Plastic head material
• Easy access in confined spaces thanks to low-profile head design with 3/4" diameter
• Wide temperature compatibility operating from 32° to 180° F for various industrial settings
• Full regulatory compliance meeting RoHS 3 and REACH standards for global applications

Professional Applications & Engineering Value

This low-profile thumb screw combines the corrosion resistance of 18-8 stainless steel with the lightweight, non-conductive properties of an Acetal Plastic head, making it ideal for electronic enclosures, instrumentation panels, and frequent-access maintenance covers. The knurled round head provides positive grip even with gloved hands, while the fully threaded design and Class 3A UNC coarse threads ensure rapid installation and removal in production environments. Engineered for applications requiring repeated adjustments, this right-hand thread screw maintains consistent performance across industrial temperature ranges from 32° to 180° F, solving accessibility challenges in space-constrained assemblies.

Specification Summary & Compliance

This thumb screw features precision 1/4"-20 UNC coarse threads with Class 3A thread fit for superior dimensional accuracy and engagement. The assembly meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance standards, ensuring environmental responsibility and material safety. Manufacturing specifications include a 3/4" head diameter, 1" fully threaded length, and low-profile round head configuration designed for reliable performance in industrial fastening applications.