S-92240A594 5/16"-18 x 2 3/4" 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 long-term reliability.
• High tensile strength of 80,000 psi ensures secure, durable fastening under heavy loads and vibration.
• Rockwell B70 hardness provides excellent wear resistance and maintains thread integrity during installation and use.
• Coarse UNC thread and Class 2A fit allow for quick, easy assembly with reliable engagement and reduced cross-threading risk.
• Fully threaded design offers maximum grip length and consistent holding power along the entire shank.
• External hex drive and standard 1/2" head width enable high-torque installation using common tools for efficient maintenance.
• Compliance with ASME B18.2.1, RoHS 3, and REACH guarantees consistent quality, safety, and environmental responsibility.

Professional Applications & Engineering Value

This 5/16"-18 UNC hex head screw is engineered to address critical industrial fastening challenges where corrosion resistance, high strength, and reliability are paramount. The 18-8 Stainless Steel material combats rust and chemical exposure in demanding settings like marine equipment, food processing machinery, and outdoor structures. Its coarse thread design ensures rapid installation and secure holding in various materials, reducing assembly time and labor costs. The fully threaded configuration provides uniform stress distribution, minimizing the risk of joint failure under dynamic loads. With an external hex drive, it supports high torque applications, making it a versatile choice for construction, manufacturing, and heavy equipment maintenance where durability and compliance with ASME B18.2.1 standards are essential for operational safety and efficiency.

Specification Summary & Compliance

This screw features precise Class 2A thread fit with UNC coarse threading for consistent performance and ease of use. It adheres to ASME B18.2.1 manufacturing specifications, ensuring dimensional accuracy and reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free from hazardous substances and meets environmental standards for industrial applications.