S-92198A501 5/8"-18 x 5" 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 industrial environments and reducing long-term replacement costs.
• High tensile strength of 80,000 psi ensures reliable performance under heavy loads and vibration, minimizing the risk of joint failure.
• Precise Class 2A thread fit on the UNF fine thread provides smoother engagement and a more secure, vibration-resistant connection.
• External hex drive and hex head design allows for high-torque installation with standard tools, speeding up assembly and maintenance.
• Partial threading offers an unthreaded shank for added shear strength, making it perfect for applications requiring precise clamping.
• Compliance with ASME B18.2.1 guarantees dimensional accuracy and interchangeability, ensuring consistent quality in your projects.
• RoHS 3 and REACH compliance confirms the screw is free from hazardous substances, supporting safe and sustainable manufacturing practices.

Professional Applications & Engineering Value

This 5/8"-18 UNF Hex Head Screw is engineered to solve critical challenges in demanding industrial applications. The 18-8 Stainless Steel material provides excellent resistance to rust and corrosion, extending service life in outdoor or chemically aggressive settings. Its 80,000 psi tensile strength and Rockwell B70 hardness ensure it can withstand high stress and repetitive loads without deforming, making it ideal for heavy machinery, structural frames, and equipment assembly. The UNF fine thread and Class 2A thread fit deliver tighter tolerances, reducing the likelihood of loosening under vibration and improving overall joint integrity. With an external hex drive for easy installation, this screw streamlines maintenance and reduces downtime in B2B procurement scenarios where reliability and compliance are paramount.

Specification Summary & Compliance

This screw features a 5/8"-18 UNF fine thread with Class 2A thread fit for precise dimensional accuracy, and a 5" length with partial threading. It is manufactured in accordance with ASME B18.2.1 specifications and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets industry standards for safety and environmental responsibility.