S-91187A234 5/16"-18 x 3 ft. ASTM A193 Threaded Rods

Key Features & Benefits at a Glance

• Exceptional corrosion resistance from 18-8 stainless steel, ideal for harsh industrial environments and outdoor applications.
• High tensile strength of 70,000 psi provides reliable load-bearing capacity and structural integrity for demanding assemblies.
• Fully threaded design ensures uniform stress distribution and allows for adjustable nut positioning along the entire 3-foot length.
• Standardized UNC coarse threading with Class 2A fit guarantees easy assembly and compatibility with common nuts and components.
• ASTM A193 Grade B8 certification confirms the material meets stringent industrial standards for high-temperature and pressure service.
• RoHS 3 compliance ensures the rod is free from hazardous substances, making it suitable for global markets and sensitive applications.
• Right-hand thread direction offers familiar and efficient installation for standard rotational fastening operations.

Professional Applications & Engineering Value

This 5/16"-18 UNC threaded rod is engineered to solve critical challenges in construction, machinery, and chemical processing. The 18-8 Stainless Steel composition delivers excellent resistance to rust and oxidation, extending service life in corrosive settings like marine or chemical plants. Its fully threaded configuration provides maximum flexibility for creating custom-length fasteners or securing components at any point, eliminating the need for multiple discrete fasteners. With a 70,000 psi tensile strength and compliance with ASTM A193 Grade B8, it reliably handles high-stress applications, including pressure vessel systems and structural frameworks, where failure is not an option. The coarse thread design also resists loosening under vibration, a common industrial pain point.

Specification Summary & Compliance

This rod adheres to precise dimensional standards with a Class 2A thread fit for consistent engagement and a UNC (Unified Coarse) thread type in a 5/16"-18 size. It is manufactured in accordance with the ASTM A193 specification for alloy-steel and stainless steel bolting materials for high-temperature service. The product is fully RoHS 3 (2015/863/EU) Compliant, meeting environmental directives for restricted substances.