S-90181A153 6-32 x 1" Thumb Screws

Key Features & Benefits at a Glance

• Quick, tool-free installation and adjustment with the ergonomic spade head design, reducing assembly time in maintenance and prototyping applications.
• Superior durability and wear resistance thanks to the steel construction and Rockwell B55 hardness, ensuring long service life in demanding environments.
• High load-bearing capacity with a tensile strength of 40,000 psi, providing reliable fastening under stress without failure.
• Secure and precise thread engagement from the Class 2A thread fit and coarse UNC threading, minimizing cross-threading and ensuring consistent performance.
• Full-length threading for maximum grip across the entire 1" length, offering enhanced holding power in various material thicknesses.
• Wide compatibility with standard 6-32 UNC nuts and threaded holes, simplifying sourcing and replacement in industrial setups.
• Right-hand thread direction for intuitive tightening, aligning with common assembly practices to reduce errors and improve efficiency.

Professional Applications & Engineering Value

This 6-32 UNC thumb screw is engineered to address common industrial challenges, such as the need for rapid, tool-less fastening in equipment panels, electronic enclosures, and machinery guards. The steel material and Rockwell B55 hardness provide excellent resistance to corrosion and mechanical wear, making it ideal for repetitive use in harsh conditions. Its coarse thread spacing and Class 2A thread fit ensure quick installation with minimal risk of stripping, while the fully threaded design enhances grip in varying depths. By combining high tensile strength (40,000 psi) with a user-friendly spade head, this screw reduces downtime and improves safety in assembly lines, prototyping, and field service applications where reliability and ease of use are critical.

Specification Summary & Compliance

This thumb screw adheres to UNC thread standards with a Class 2A thread fit for precise dimensional accuracy and interchangeability. It features a 6-32 thread size, coarse thread spacing, and right-hand thread direction, manufactured to common industrial specifications. The product meets general requirements for material consistency and performance, though specific compliance with standards like RoHS or REACH should be verified per batch for environmental and safety protocols.