S-90179A194 8-32 x 1/2" Thumb Screws

Key Features & Benefits at a Glance

• Tool-free operation with spade head design for quick manual adjustments without requiring specialized tools
• Exceptional durability with Rockwell B55 hardness steel construction resisting wear in demanding industrial environments
• Reliable holding power with 40,000 psi tensile strength ensuring secure fastening under mechanical stress
• Faster installation through coarse UNC threading and Class 2A fit providing smooth engagement with minimal cross-threading risk
• Enhanced stability from integrated flange design distributing load evenly and preventing surface damage
• Full-thread engagement along the entire 1/2" length maximizing contact area for superior grip strength
• Environmental compliance meeting RoHS 3 standards for safe use in regulated industries and applications

Professional Applications & Engineering Value

This 8-32 UNC thumb screw delivers exceptional value in applications requiring frequent adjustments and secure fastening. The spade head design enables rapid manual operation in confined spaces where tool access is limited, while the steel construction with Rockwell B55 hardness withstands repeated use without deformation. The coarse thread spacing and Class 2A thread fit ensure quick engagement and reliable performance in vibration-prone environments. The integrated flange provides superior load distribution, protecting sensitive surfaces from damage. Ideal for industrial equipment, electronic enclosures, and machinery requiring quick-access panels, this fully threaded fastener maintains consistent clamping force across the entire engagement length.

Specification Summary & Compliance

This thumb screw features precision 8-32 UNC coarse threads with Class 2A fit ensuring consistent dimensional accuracy and proper mating with standard nuts and threaded holes. The 0.164" thread diameter and 1/2" length provide optimal sizing for various industrial applications. Manufacturing complies with RoHS 3 (2015/863/EU) environmental regulations, guaranteeing restriction of hazardous substances. The right-hand thread direction and fully threaded design follow industry-standard specifications for reliable performance in professional fastening systems.