S-97042A209 5/16"-24 x 4" Partially Threaded Studs

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and long-term reliability
• Precise assembly and secure fastening ensured by Class 2A thread fit with tight ±0.005" diameter tolerance
• High-strength performance with 70,000 psi tensile strength for demanding mechanical applications
• Optimized for fine-thread applications using 5/16"-24 UNF right-hand threading for improved vibration resistance
• Versatile partial threading design with 3/4" thread length on one end for flexible installation and adjustment
• Full regulatory compliance with RoHS 3 and REACH standards for safe use in regulated industries
• Dimensional stability with 3 1/4" shaft length and 4" total length for consistent performance in precision assemblies

Professional Applications & Engineering Value

This 5/16"-24 UNF partially threaded stud delivers critical engineering value in industrial settings where vibration resistance and corrosion protection are paramount. The 18-8 stainless steel material prevents rust and degradation in machinery, automotive, and marine applications, while the fine UNF threading maintains clamp load under dynamic conditions. With Class 2A thread fit and precise diameter control, it eliminates play in high-tolerance assemblies, reducing maintenance and improving equipment lifespan. The partially threaded design allows for secure anchoring while permitting adjustment, making it ideal for mounting components, securing brackets, and precision alignment tasks where reliability cannot be compromised.

Specification Summary & Compliance

This stud maintains Class 2A thread fit per UNF standards with shaft diameter tolerance of -0.005" to +0.005". It conforms to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance requirements, ensuring environmental safety. Manufacturing follows inch system specifications with 5/16"-24 UNF fine threading, right-hand direction, and partial threading on one end (3/4" thread length). The 70,000 psi tensile strength meets industrial fastener demands without hardness rating dependency.