S-92186A890 7/8"-9 x 4 1/2" ASME B18.2.1 Super-Corrosion-Resistant 316 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to 316 stainless steel construction, ideal for harsh industrial environments
• High tensile strength of 70,000 PSI ensures reliable performance under heavy loads and stress
• Coarse UNC threading provides faster installation and reduced risk of cross-threading
• External hex drive design allows for high-torque application with standard tools
• Class 2A thread fit guarantees consistent, reliable engagement and interchangeability
• Partial threading offers optimal grip and clamping force for specific assembly requirements
• Compliance with major standards including ASME B18.2.1, ensuring quality and safety

Professional Applications & Engineering Value

Engineered for demanding environments, this 7/8"-9 UNC hex head screw in 316 stainless steel delivers exceptional corrosion resistance against chemicals, saltwater, and extreme temperatures. The coarse thread design and external hex drive enable quick, secure fastening in heavy machinery, structural steelwork, and marine applications, reducing assembly time and maintenance costs. With a 70,000 PSI tensile strength and Rockwell B70 hardness, it withstands high vibration and load cycles, ensuring long-term reliability in industrial and construction settings where failure is not an option.

Specification Summary & Compliance

This screw features a 4 1/2" length with a minimum thread length of 2", Class 2A thread fit for precise tolerance, and UNC coarse threading. It is manufactured to ASME B18.2.1 specifications and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material integrity.