S-91185A805 1/4"-20 x 5/8" Thumb Screws

Key Features & Benefits at a Glance

• Enhanced manual operation with multi-lobe head design for superior grip and torque application without tools
• Corrosion-resistant performance using 18-8 stainless steel construction for longevity in demanding environments
• Secure thread engagement with Class 3A fit UNC coarse threading ensuring reliable fastening in industrial applications
• Comfortable and durable handling from black acetal plastic heads that resist wear and provide thermal stability (32° to 180° F)
• Maximum fastening versatility with fully threaded 5/8" length for adjustable positioning and strong hold
• Environmental compliance assurance meeting RoHS 3 and REACH standards for safe, sustainable use
• Broad compatibility with right-hand UNC 1/4"-20 thread size fitting standard components across industries

Professional Applications & Engineering Value

These 1/4"-20 thumb screws combine 18-8 stainless steel with acetal plastic multi-lobe heads to address common industrial challenges like frequent adjustments and exposure to moisture. The fully threaded design and Class 3A thread fit provide precise, repeatable fastening in equipment panels, electronic enclosures, and machinery guards, reducing assembly time and minimizing tool dependency. The black acetal plastic offers excellent impact resistance and a non-slip surface, ideal for applications requiring manual operation in tight spaces or temperature-varying conditions, while the UNC coarse threading ensures quick installation and high pull-out strength.

Specification Summary & Compliance

This product adheres to UNC thread standards with a Class 3A fit for tight tolerances and consistent performance. Dimensions include a 1/4"-20 thread size, 5/8" length, and 1 1/2" head diameter. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and suitability for global industrial markets.