S-91746A640 6-32 x 3/8" Thumb Screws

Key Features & Benefits at a Glance

• Enhanced Grip and Comfort: Knurled head texture provides superior slip resistance for easy hand-tightening without tools, reducing assembly time and operator fatigue.
• Exceptional Corrosion Resistance: Made from 18-8 Stainless Steel, offering excellent durability in harsh environments and resistance to rust and oxidation.
• High Strength and Reliability: With a tensile strength of 80,000 psi and Rockwell B85 hardness, it ensures a secure, long-lasting hold in demanding applications.
• Optimized Low-Profile Design: Round, low-profile head allows for use in tight spaces where clearance is limited, improving design flexibility.
• Wide Compatibility and Easy Installation: UNC coarse threading and Class 2A fit enable quick, precise engagement with standard nuts and tapped holes, minimizing cross-threading risks.
• Full Thread Engagement: Fully threaded design maximizes contact area for stronger fastening and improved vibration resistance.
• Regulatory Compliance: RoHS 3 and REACH compliant, ensuring safe use in regulated industries and global market acceptance.

Professional Applications & Engineering Value

This 6-32 low-profile thumb screw is engineered to solve common industrial challenges, such as frequent adjustments and tool-free access in confined spaces. The 18-8 stainless steel construction provides robust corrosion resistance, ideal for electronics, machinery panels, and medical devices exposed to moisture or chemicals. The knurled head and slotted drive offer dual functionality for hand-tightening or tool use, enhancing versatility in assembly lines. With UNC coarse threading and a Class 2A fit, it ensures reliable, quick fastening without compromising on precision, reducing downtime in maintenance and production environments. Its full threading and right-hand design further contribute to efficient load distribution and ease of use in industrial thumb screw applications.

Specification Summary & Compliance

This thumb screw adheres to UNC coarse thread standards with a Class 2A thread fit for consistent dimensional accuracy and easy assembly. It is fully threaded with a right-hand direction and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material restrictions are met. The specifications include a thread size of 6-32, length of 3/8", and coarse thread spacing, manufactured to support reliable performance in various industrial settings.