S-96966A746 5/16"-18 x 1 1/4" Thumb Screws

Key Features & Benefits at a Glance

• Tool-free operation with large spade head design for quick manual tightening and loosening in confined spaces
• Superior corrosion resistance through zinc plating, extending service life in industrial environments
• High-strength performance with 40,000 psi tensile strength and Rockwell B55 hardness for demanding applications
• Reliable thread engagement with Class 2A UNC coarse threads ensuring consistent fit and vibration resistance
• Full-length threading provides maximum grip and adjustment flexibility along the entire 1 1/4" length
• Right-hand thread direction offers intuitive, standard operation for efficient assembly processes
• Environmental compliance with RoHS 3 standards for safe use in regulated industries

Professional Applications & Engineering Value

This zinc-plated steel thumb screw delivers exceptional value in applications requiring frequent adjustments or quick access panels. The spade head design eliminates tool dependency while providing substantial torque capability, making it ideal for maintenance-heavy equipment, electrical enclosures, and machinery guards. The UNC coarse thread spacing combined with Class 2A thread fit ensures rapid installation and reliable performance in vibration-prone environments. With fully threaded construction and 40,000 psi tensile strength, this fastener maintains structural integrity in industrial settings where repeated assembly and disassembly cycles are common. The zinc plating provides essential corrosion protection, extending service life in manufacturing facilities, automotive applications, and outdoor equipment.

Specification Summary & Compliance

This thumb screw features precise Class 2A thread fit with UNC coarse thread spacing (5/16"-18) and 0.313" thread diameter. Manufactured to standard inch system specifications with 1 1/4" length and fully threaded design. The product complies with RoHS 3 (2015/863/EU) environmental regulations and meets standard industrial requirements for thumb screw fasteners with right-hand thread direction and spade head configuration.