S-92186A358 5/16"-24 x 4" 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 tensile strength of 70,000 psi ensures reliable performance under heavy loads
• Precise Class 2A thread fit guarantees smooth assembly and secure fastening
• External hex drive design allows for high-torque installation with standard tools
• Compliance with ASME B18.2.1 ensures dimensional accuracy and interchangeability
• RoHS 3 and REACH compliance meets stringent environmental and safety regulations
• Partially threaded shank provides optimal grip length for specific material thicknesses

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these 316 stainless steel hex head screws deliver exceptional performance in corrosive environments where standard fasteners fail. The UNF fine thread spacing provides superior vibration resistance and clamping force compared to coarse threads, making them ideal for precision machinery, marine equipment, and chemical processing systems. With their external hex drive and Rockwell B70 hardness, they withstand high installation torque without stripping, while the 4" length and partial threading offer flexibility for various material thicknesses. These screws solve critical engineering challenges by combining corrosion resistance with mechanical strength, ensuring long-term reliability in the most challenging operating conditions.

Specification Summary & Compliance

This 5/16"-24 UNF hex head screw features precise Class 2A thread fit per UNF standards with 0.3125" thread diameter and 7/8" minimum thread length. Manufactured to ASME B18.2.1 specifications for dimensional accuracy and mechanical properties. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors.