S-92198A512 3/8"-16 x 18" ASME B18.2.1 18-8 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh environments and reducing maintenance costs.
• High tensile strength of 80,000 psi ensures reliable performance under heavy loads and prevents mechanical failure.
• Rockwell B70 hardness provides excellent durability and wear resistance, extending the screw's service life.
• Partially threaded design allows for precise clamping force and secure fastening in specific assembly applications.
• External hex drive and hex head enable easy installation and removal with standard tools, improving assembly efficiency.
• Class 2A thread fit and UNC coarse threading ensure consistent, reliable engagement and reduce cross-threading risks.
• Compliance with ASME B18.2.1, RoHS 3, and REACH guarantees adherence to industry standards and environmental safety regulations.

Professional Applications & Engineering Value

This 3/8"-16 UNC partially threaded hex head screw is engineered to address critical challenges in industrial and construction settings. The 18-8 Stainless Steel material offers exceptional corrosion resistance, making it suitable for outdoor, marine, or chemical-exposed applications where rust can compromise structural integrity. Its coarse thread design and Class 2A fit provide quick assembly and reliable holding power in materials like wood or metal, reducing installation time and minimizing thread stripping. The 18-inch length and partial threading allow for adjustable grip range and concentrated stress distribution, ideal for heavy-duty frameworks, machinery bases, and structural supports that require both strength and precision. By combining high tensile strength and standardized dimensions, this screw delivers consistent performance in demanding B2B environments, from manufacturing plants to infrastructure projects.

Specification Summary & Compliance

This screw features a 3/8"-16 UNC coarse thread with Class 2A thread fit for precise dimensional accuracy and easy assembly. It is manufactured in accordance with ASME B18.2.1 standards, ensuring consistent quality and interoperability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety for use in restricted substance-sensitive applications. Additional specifications include a right-hand thread direction, inch system measurements, and partial threading up to a minimum thread length of 1 1/4".