S-90732A340 8-32 x 3/4" Thumb Screws

Key Features & Benefits at a Glance

• Effortless manual operation with thumb and external hex drive for quick installation and removal without tools
• Superior corrosion resistance from black-oxide steel coating, extending service life in harsh industrial environments
• High load-bearing capacity with 70,000 psi tensile strength and Rockwell B84 hardness for reliable performance under stress
• Precise thread engagement with Class 2A fit and UNC coarse threads ensuring secure fastening and vibration resistance
• Full threading versatility allowing consistent grip along the entire 3/4" length for adjustable positioning
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for safe use in regulated industries
• Optimized head dimensions (1/4" height, 3/8" width) providing comfortable grip and sufficient torque application

Professional Applications & Engineering Value

This 8-32 UNC thumb screw delivers exceptional value in applications requiring frequent access or adjustments, such as industrial equipment panels, electronic enclosures, and machinery guards. The black-oxide steel construction resists rust and wear, while the coarse threading and Class 2A fit prevent cross-threading and maintain alignment in high-vibration settings. The combination of external hex drive and thumb head allows both manual and tool-assisted tightening, reducing installation time and improving maintenance efficiency. With fully threaded design and right-hand direction, it ensures consistent clamping force across various material thicknesses, making it ideal for prototyping, assembly lines, and field service applications where reliability and compliance are critical.

Specification Summary & Compliance

Manufactured to precise UNC thread standards with Class 2A thread fit for consistent dimensional accuracy. Complies with RoHS 3 (2015/863/EU) under exemption 6(a)-I for lead as steel alloying element and REACH (EC 1907/2006) regulations. Thread specifications include #8-32 size, 0.164" diameter, coarse spacing, and right-hand orientation. Mechanical properties verified at 70,000 psi tensile strength and Rockwell B84 hardness, ensuring performance in demanding industrial applications.