S-97008A253 10-32 x 1/2" Thumb Screws

Key Features & Benefits at a Glance

• Effortless manual installation and removal with a wide 7/16" spade head design for superior finger grip and torque application.
• Enhanced durability and corrosion resistance provided by the zinc-plated steel finish, extending the screw's service life in various environments.
• Reliable, precision threading with a Class 2A fit and 10-32 UNF fine thread for secure, vibration-resistant fastening in demanding applications.
• Increased holding power and stability from the integrated flange, which distributes load and acts as a built-in washer.
• High mechanical strength with a tensile strength of 40,000 psi and Rockwell B55 hardness, ensuring the screw withstands significant operational stress.
• Full thread engagement along the 1/2" length for maximum grip and adjustment flexibility in assembled components.
• Compliance with environmental and safety standards by being RoHS 3 compliant, making it suitable for regulated industries.

Professional Applications & Engineering Value

This 10-32 UNF Thumb Screw is engineered to solve the common industrial challenge of requiring frequent, tool-less adjustments without compromising on mechanical integrity. The zinc-plated steel construction offers excellent corrosion resistance, making it ideal for industrial equipment, electronic enclosures, and machinery panels that are subject to manual handling. The spade head and flanged design work in tandem to prevent over-tightening and provide a stable bearing surface, reducing the need for separate washers. Its fine thread spacing and Class 2A thread fit ensure a precise, secure connection that resists loosening under vibration, a critical feature for maintaining assembly integrity in dynamic operational environments.

Specification Summary & Compliance

This thumb screw adheres to the UNF (Unified National Fine) thread standard with a Class 2A tolerance for a consistent, reliable fit. The manufacturing specifications include a thread size of 10-32, a thread diameter of 0.19", and a length of 1/2". It is fully threaded with a right-hand thread direction. The product is confirmed to be RoHS 3 (2015/863/EU) Compliant, ensuring it meets stringent environmental regulations for hazardous substance restrictions.