S-97042A178 1/4"-28 x 1" Partially Threaded Studs

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments.
• Precise assembly fit ensured by Class 2A thread fit, reducing the risk of cross-threading and improving installation reliability.
• High tensile strength of 70,000 psi provides dependable load-bearing capacity for critical applications.
• Fine UNF threading (1/4"-28) offers enhanced vibration resistance and secure fastening in dynamic conditions.
• Strict diameter tolerance (±0.005") guarantees consistent performance and ease of integration with mating components.
• Partial threading design allows for versatile use as a stud, spacer, or pivot in complex assemblies.
• Full compliance with RoHS 3 and REACH ensures environmental safety and meets global regulatory standards.

Professional Applications & Engineering Value

This 1/4"-28 UNF partially threaded stud is engineered to address common challenges in precision machinery, automotive, and electrical enclosures. Made from 18-8 stainless steel, it resists oxidation and chemical exposure, extending service life in demanding settings. The Class 2A thread fit and fine UNF threading minimize backlash and maintain clamp load under vibration, preventing loosening in high-stress applications. With a 70,000 psi tensile strength and tight diameter tolerance, it ensures reliable performance in assemblies requiring exact alignment and durability, such as motor mounts, control panels, and hydraulic systems.

Specification Summary & Compliance

This stud adheres to Class 2A thread fit standards with a shaft diameter tolerance of -0.005" to 0.005" and UNF fine threading (1/4"-28). It is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free from hazardous substances and suitable for global industrial use.