S-97042A198 5/16"-18 x 4 1/2" Partially Threaded Studs
Partially Threaded Studs
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Basic Information
Dimension Parameters
Thread Parameters
Material & Strength Parameters
Shaft Parameters
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Key Features & Benefits at a Glance
- Superior corrosion resistance thanks to 18-8 stainless steel construction, ideal for harsh environments.
- High tensile strength of 70,000 psi ensures reliable performance under significant mechanical loads.
- Precision Class 2A thread fit guarantees consistent, secure fastening with standard UNC nuts.
- Coarse UNC threading provides faster assembly and reduced cross-threading risk in industrial settings.
- Partially threaded design allows for versatile clamping and adjustment in machinery and structural applications.
- Compliance with RoHS 3 and REACH ensures environmental safety and regulatory acceptance in global markets.
- Right-hand threading offers standard, intuitive installation for common industrial equipment.
Professional Applications & Engineering Value
This 5/16"-18 UNC threaded stud is engineered to address common industrial challenges such as vibration loosening and corrosion-induced failure. The 18-8 stainless steel material provides excellent resistance to rust and chemicals, making it suitable for outdoor, marine, and chemical processing equipment. With a Class 2A thread fit and coarse UNC threading, it ensures quick, reliable assembly in high-volume production environments, reducing downtime. The partially threaded shaft allows for precise positioning in assemblies like motor mounts, brackets, and frames, offering flexibility where full threading is unnecessary. Its 70,000 psi tensile strength supports heavy-duty applications, from automotive to construction, ensuring long-term durability and reduced maintenance costs.
Specification Summary & Compliance
This stud adheres to UNC thread standards with a Class 2A external thread fit, ensuring dimensional accuracy and interchangeability. Key specifications include a shaft diameter of 5/16" with a tolerance of -0.005" to 0.005", a total length of 4 1/2", and a thread length of 3/4". It is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free from hazardous substances and suitable for use in regulated industries.
