S-92186A392 1/2"-20 x 3 1/2" ASME B18.2.1 Super-Corrosion-Resistant 316 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance in harsh environments thanks to 316 stainless steel construction
• High mechanical strength with 70,000 psi tensile strength for reliable, heavy-duty load-bearing applications
• Excellent thread engagement and vibration resistance provided by the UNF fine thread profile and Class 2A fit
• Secure and efficient installation enabled by the external hex drive and 3/4" head width for high torque application
• Optimized for specific assembly needs with a partially threaded shank design
• Guaranteed dimensional consistency and interchangeability through compliance with ASME B18.2.1 specifications
• Safe for regulated industries with full compliance to RoHS 3 and REACH environmental directives

Professional Applications & Engineering Value

Engineered for demanding industrial settings, this 316 Stainless Steel Hex Head Screw provides a robust fastening solution where corrosion resistance and structural integrity are non-negotiable. The UNF fine thread (1/2"-20) and Class 2A thread fit ensure precise, vibration-resistant connections in machinery, marine hardware, and chemical processing equipment. Its partially threaded design allows for effective clamping without unnecessary thread engagement, making it ideal for securing components to thick plates or structural members. The combination of 70,000 psi tensile strength and Rockwell B70 hardness ensures long-term performance under stress, reducing maintenance needs and downtime in critical applications.

Specification Summary & Compliance

This screw features a 1/2"-20 UNF thread with a Class 2A tolerance for consistent fit. It is manufactured to meet the dimensional requirements of ASME B18.2.1. The product is confirmed to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring it adheres to strict environmental and safety regulations for hazardous substances.