S-97042A173 1/4"-20 x 2 1/2" Partially Threaded Studs

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments and outdoor applications
• High tensile strength of 70,000 PSI ensures reliable load-bearing capacity and structural integrity in demanding assemblies
• Precision Class 2A thread fit guarantees smooth installation and secure fastening with consistent mating components
• Partially threaded design provides both threaded engagement and smooth shank for versatile positioning and alignment
• Coarse UNC threading with right-hand direction enables quick assembly and disassembly while resisting vibration loosening
• Full compliance with RoHS 3 and REACH regulations ensures environmental safety and global market acceptance
• Tight diameter tolerance of ±0.005" maintains dimensional accuracy for precise fit in machined components

Professional Applications & Engineering Value

This 1/4"-20 UNC partially threaded stud delivers critical engineering value where both corrosion resistance and mechanical strength are paramount. The 18-8 stainless steel composition provides excellent protection against rust and chemical degradation in demanding environments such as marine equipment, food processing machinery, and chemical processing plants. The partially threaded configuration allows for optimal load distribution - the smooth shank section resists shear forces while the 3/4" threaded portion ensures secure nut retention. With coarse UNC threading and Class 2A thread fit, this stud enables rapid assembly in high-volume production while maintaining vibration resistance in mechanical systems, electrical enclosures, and structural frameworks where reliability cannot be compromised.

Specification Summary & Compliance

This partially threaded stud features a 1/4"-20 UNC thread size with Class 2A thread fit per ASME B1.1 standards, ensuring precise dimensional accuracy and interchangeability. The inch-system specifications include a 2-1/2" total length with 1-3/4" shaft length and 3/4" thread length. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental directives, confirming the absence of restricted hazardous substances. The 70,000 PSI tensile strength meets industrial requirements for durable fastening solutions across various mechanical applications.