S-97042A177 1/4"-20 x 5 1/2" Partially Threaded Studs

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction for long-lasting performance in harsh industrial environments
• Precise Class 2A thread fit ensures reliable engagement and consistent assembly in high-vibration applications
• High 70,000 PSI tensile strength provides exceptional load-bearing capacity for demanding mechanical connections
• Optimized partially threaded design with 3/4" threaded section allows secure fastening while maintaining unthreaded shaft integrity
• Right-hand coarse UNC threading enables quick installation and removal with standard tools, reducing assembly time
• Strict dimensional control with shaft diameter tolerance of ±0.005" ensures consistent fit and alignment
• Full regulatory compliance with RoHS 3 and REACH standards for safe use across global markets

Professional Applications & Engineering Value

This 1/4"-20 UNC partially threaded stud delivers exceptional engineering value through its 18-8 stainless steel composition and precision Class 2A thread fit. The material's inherent corrosion resistance makes it ideal for applications exposed to moisture, chemicals, or outdoor elements, while the 70,000 PSI tensile strength ensures structural integrity under heavy loads. The partially threaded configuration provides dual functionality: the 3/4" right-hand coarse threading offers secure fastening capability, while the smooth shaft section maintains alignment and prevents thread damage during installation. This design is particularly valuable in machinery assembly, structural frameworks, and equipment manufacturing where vibration resistance and reliable connections are critical. The UNC coarse thread pattern further enhances installation efficiency, reducing labor time in high-volume production environments.

Specification Summary & Compliance

This partially threaded stud features precise 1/4" shaft diameter with tight tolerance control (-0.005" to +0.005") and follows UNC coarse thread standards with Class 2A thread fit for consistent mating with corresponding internal threads. The manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for international industrial applications. With a total length of 5 1/2" and threaded portion of 3/4", this stud maintains dimensional accuracy per inch-based fastener specifications.