S-91185A863 3/8"-16 x 3/4" Thumb Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for humid or demanding industrial environments
• Effortless hand-tightening and loosening thanks to the multi-lobe acetal plastic head design for enhanced grip without tools
• Reliable, vibration-resistant assembly ensured by Class 3A thread fit and UNC coarse threading for secure fastening
• Durable performance in varied temperatures with a head temperature range from 32° to 180° F
• Full-thread engagement for consistent holding power along the entire 3/4" length
• Compliance with global environmental standards, including RoHS 3 and REACH, for safe and sustainable use
• Versatile right-hand threading for standard installation in machinery, fixtures, and equipment

Professional Applications & Engineering Value

These 3/8"-16 thumb screws combine 18-8 stainless steel with a multi-lobe acetal plastic head to address common assembly challenges in industrial settings. The UNC coarse thread and Class 3A thread fit provide precise, vibration-resistant fastening, reducing the risk of loosening in high-movement applications. The acetal head offers excellent grip and electrical insulation, while the stainless steel body resists rust and wear, making these screws ideal for frequent-adjustment equipment, enclosures, and machinery requiring tool-free maintenance. Their fully threaded design ensures uniform load distribution, enhancing durability in heavy-duty assemblies.

Specification Summary & Compliance

This product features a 3/8"-16 UNC coarse thread with Class 3A thread fit for high precision and strength. Dimensions include a 1 1/2" head diameter, 3/4" length, and fully threaded right-hand design. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and suitability for global industrial use.