S-97042A184 1/4"-28 x 3 1/2" Partially Threaded Studs

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh or humid industrial environments.
• High tensile strength of 70,000 psi ensures reliable performance under significant mechanical loads.
• Precision Class 2A thread fit guarantees smooth assembly and secure fastening with standard UNF nuts.
• Fine UNF threading (1/4"-28) provides increased thread engagement and vibration resistance.
• Partial threading design allows for versatile positioning and clamping in assemblies.
• Tight diameter tolerance (±0.005") ensures consistent fit and reduces installation issues.
• Compliance with RoHS 3 and REACH meets stringent environmental and safety regulations for global sourcing.

Professional Applications & Engineering Value

This 1/4-28 UNF partially threaded stud is engineered for precision applications where reliability and corrosion resistance are critical. The 18-8 stainless steel material offers excellent durability in demanding environments, such as machinery, automotive assemblies, and electronic enclosures. The Class 2A thread fit and fine UNF threading ensure secure, vibration-resistant connections, reducing the risk of loosening under dynamic loads. With a 3/4" thread length and 2 3/4" unthreaded shaft, it provides optimal clamping force distribution and alignment in fixtures, jigs, and structural frameworks, making it a versatile industrial fastener for engineers and OEMs.

Specification Summary & Compliance

This stud features a 1/4" shaft diameter with a tolerance of -0.005" to 0.005", 3 1/2" overall length, and 3/4" thread length with right-hand UNF fine threading. It conforms to Class 2A thread fit standards for external threads, ensuring dimensional accuracy. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting sustainable and safe manufacturing practices.