S-90179A831 10-32 x 3/4" Thumb Screws

Key Features & Benefits at a Glance

• Effortless manual tightening and loosening with a spade head design offering 15/32" height and 7/16" width for superior grip and torque application without tools.
• Enhanced stability and load distribution thanks to the integrated flange with a 0.344" diameter, preventing the screw from embedding into softer materials.
• Reliable and precise thread engagement with a Class 2A fit and fine 10-32 UNF thread, ensuring consistent performance and vibration resistance in assemblies.
• Exceptional mechanical durability from heat-treated steel, providing a tensile strength of 40,000 psi and Rockwell B55 hardness for long service life under stress.
• Full-length threading for maximum versatility, allowing the screw to be used at any point along its 3/4" length for adjustable fastening solutions.
• Compliance with environmental and safety standards by being RoHS 3 (2015/863/EU) Compliant, making it suitable for regulated industries.
• Right-hand thread direction for standard operation, facilitating intuitive installation and removal in common industrial applications.

Professional Applications & Engineering Value

This 10-32 UNF Thumb Screw is engineered to solve common challenges in industrial settings where frequent access and tool-free operation are critical. The steel construction with Rockwell B55 hardness ensures it withstands repetitive use and mechanical stress, ideal for electronic enclosures, machinery panels, and prototyping fixtures. The flanged spade head design provides a larger bearing surface, reducing the risk of damage to components and improving grip for quick adjustments. With its fine thread spacing and Class 2A thread fit, it offers precise alignment and resistance to loosening from vibrations, making it a reliable choice for high-precision assemblies in manufacturing and maintenance operations.

Specification Summary & Compliance

This product adheres to UNF thread standards with a Class 2A thread fit for consistent dimensional accuracy. It is manufactured from high-strength steel, fully threaded, and compliant with RoHS 3 (2015/863/EU) regulations, ensuring it meets environmental and safety requirements for industrial use.