S-92240A582 5/16"-18 x 7/8" ASME B18.2.1 18-8 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance thanks to 18-8 stainless steel construction, ideal for harsh industrial environments
• High tensile strength of 80,000 PSI ensures reliable performance under heavy loads and vibration
• Rockwell B70 hardness provides excellent durability and wear resistance for long service life
• Class 2A thread fit offers smooth assembly and consistent engagement with standard nuts
• Fully threaded design allows for maximum grip and uniform clamping force along the entire length
• External hex drive and hex head enable easy installation with common tools and high torque application
• Coarse UNC threads facilitate quick assembly and reduce cross-threading risks

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these 5/16"-18 UNC hex head screws deliver outstanding performance in corrosive or high-stress environments. The 18-8 stainless steel composition provides superior corrosion resistance, making them ideal for chemical processing, marine equipment, and outdoor structures where moisture exposure is common. With 80,000 PSI tensile strength and Rockwell B70 hardness, these fasteners maintain structural integrity under vibration and heavy loads. The fully threaded design ensures maximum engagement in tapped holes or with nuts, while the external hex drive allows for efficient installation with standard wrenches. These coarse thread screws are particularly valuable in assembly lines where speed and reliability are critical, reducing installation time while maintaining secure connections in machinery, construction, and manufacturing applications.

Specification Summary & Compliance

This 5/16"-18 UNC hex head screw features precise Class 2A thread fit per ASME standards, ensuring consistent engagement and reliable performance. The fastener meets ASME B18.2.1 specifications for dimensional accuracy and mechanical properties. Manufacturing compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming the absence of restricted hazardous substances. The inch system measurement, right-hand thread direction, and coarse thread spacing provide compatibility with standard North American industrial components and applications.