S-97568A712 1/2"-13 x 1" Thumb Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated iron construction, ideal for humid or demanding industrial environments.
• Effortless manual tightening thanks to the wing-shaped thumb head, eliminating the need for tools in quick-assembly applications.
• Reliable and consistent thread engagement with a Class 2A thread fit, ensuring secure fastening and reducing the risk of cross-threading.
• Maximum grip and holding power from the fully threaded design, providing uniform load distribution along the entire length.
• Broad compatibility with coarse (UNC) threaded components, making it a versatile choice for various machinery and equipment.
• Compliance with major environmental and safety regulations including RoHS 3 and REACH, ensuring suitability for global industrial markets.
• Durable and robust build with a substantial 3/4" head diameter, designed to withstand repeated manual use without stripping.

Professional Applications & Engineering Value

This zinc-plated iron thumb screw is engineered to address common challenges in industrial maintenance, prototyping, and machinery access panels. The wing-shaped thumb head allows for quick, tool-free adjustments, significantly reducing downtime during frequent disassembly. The fully threaded 1/2"-13 UNC design with a Class 2A thread fit provides excellent vibration resistance and prevents loosening in dynamic environments. Its coarse thread spacing ensures fast installation and reliable performance in soft materials or pre-tapped holes. The zinc plating offers a protective barrier against rust and corrosion, extending the screw's service life in workshops, outdoor equipment, and electronic enclosures. This combination of features makes it an indispensable manual fastening screw for engineers prioritizing efficiency, durability, and regulatory compliance.

Specification Summary & Compliance

This thumb screw adheres to UNC thread standards with a Class 2A thread fit for consistent dimensional accuracy and reliable performance. It is fully threaded with a right-hand thread direction and coarse thread spacing. The product is manufactured to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting stringent environmental and safety regulations for industrial components.