S-97568A724 1/2"-13 x 3" Thumb Screws

Key Features & Benefits at a Glance

• Effortless hand-tightening with a large 2 1/4" wing head, eliminating the need for tools in quick-assembly or frequent adjustment applications.
• Superior corrosion resistance provided by the zinc-plated iron finish, extending the screw's service life in various industrial environments.
• Quick and reliable installation due to the coarse UNC thread and Class 2A fit, ensuring smooth engagement and a secure hold.
• Maximum grip and holding power along the entire 3" length, thanks to the fully threaded design for consistent performance.
• Guaranteed material safety and compliance with RoHS 3 and REACH regulations, making it suitable for use in regulated industries.
• Broad compatibility with standard 1/2"-13 UNC nuts and threaded holes, simplifying sourcing and replacement.
• Durable construction with a right-hand thread direction, designed for reliable, repeated use in manual fastening operations.

Professional Applications & Engineering Value

This zinc-plated iron thumb screw is engineered to solve common industrial challenges where speed, accessibility, and reliability are paramount. The large wing head allows for rapid hand-tightening and loosening, making it ideal for applications requiring frequent access, such as panel covers, access doors, and machinery guards. The fully threaded 3" length and coarse UNC thread provide excellent pull-out resistance and reduce cross-threading risks, ensuring a secure fit in dynamic environments. Constructed from robust iron with a zinc plating, it offers dependable corrosion protection, which is critical for maintaining integrity in settings exposed to moisture or varying temperatures. This combination of features delivers significant engineering value by minimizing downtime and tool dependency in maintenance, assembly, and OEM equipment.

Specification Summary & Compliance

This thumb screw adheres to precise dimensional standards, including a Class 2A thread fit for consistent assembly and a head diameter tolerance of -0.0156" to 0.0156". It conforms to UNC thread specifications with a 1/2"-13 coarse thread and right-hand direction. The product is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets strict environmental and safety standards for industrial use.