S-98704A320 8-32 x 17/32" Thumb Screws

Key Features & Benefits at a Glance

• Enhanced grip and comfort with knurled black acetal plastic head for easy manual tightening without tools
• Superior corrosion resistance from 18-8 stainless steel construction, ideal for demanding industrial environments
• Precise thread engagement with Class 3A fit and UNC coarse threads for reliable fastening and vibration resistance
• Quick installation and removal thanks to the low-profile round head design and right-hand threading
• Dual drive versatility featuring both thumb operation and 9/64" hex drive for flexible assembly options
• Full thread coverage across the 17/32" length for maximum holding power in various material thicknesses
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for safe use in regulated industries

Professional Applications & Engineering Value

This 8-32 UNC thumb screw delivers exceptional value in applications requiring frequent adjustments or tool-less operation. The 18-8 stainless steel body provides excellent corrosion resistance in harsh environments, while the black acetal plastic head maintains dimensional stability across its 32° to 180° F temperature range. The knurled texture ensures secure grip even with gloved hands, solving slippage issues common in industrial settings. With its Class 3A thread fit and coarse threading, this fully threaded screw offers rapid installation in electronic enclosures, machinery guards, and assembly jigs where repeated access is necessary. The combination of manual thumb operation and hex drive compatibility makes it ideal for maintenance panels, test equipment, and prototyping applications where both convenience and torque requirements must be balanced.

Specification Summary & Compliance

This thumb screw features precision 8-32 UNC threads with Class 3A fit for superior thread engagement and consistent performance. The inch-system specifications include 17/32" length, 1/2" head diameter, and 7/32" head height with low-profile round design. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material transparency. The right-hand coarse threading and fully threaded design provide reliable fastening across multiple applications while maintaining dimensional accuracy per standard inch measurement requirements.