S-92620A611 5/16"-24 x 1 1/2" ASME B18.2.1, SAE J429 High-Strength Grade 8 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with 150,000 psi tensile strength for reliable performance in high-stress applications
• Superior corrosion resistance provided by zinc yellow-chromate plating, extending service life in harsh environments
• Precise thread engagement with UNF fine threading and Class 2A fit ensuring secure fastening and vibration resistance
• Maximum durability through Rockwell C33 hardness rating, maintaining structural integrity under repeated stress
• Full-threaded design offering consistent gripping strength along the entire 1½" length
• Industry-standard compliance meeting ASME B18.2.1 and SAE J429 specifications for guaranteed quality and interchangeability
• Easy installation and removal with external hex drive design providing superior torque transmission

Professional Applications & Engineering Value

This Grade 8 hex head screw delivers critical engineering solutions where high tensile strength and corrosion resistance are paramount. The steel construction with zinc yellow-chromate plating effectively combats environmental degradation in industrial settings, while the UNF fine threading with Class 2A fit ensures precise alignment and prevents loosening in vibrating machinery. Engineered for heavy-duty applications including structural assemblies, machinery frames, and equipment manufacturing, this fully threaded fastener provides uniform stress distribution across its entire length. The external hex drive configuration allows for high-torque installation, making it ideal for maintenance operations requiring reliable disassembly and reassembly capabilities.

Specification Summary & Compliance

This 5/16"-24 hex head screw features precise Class 2A thread fit tolerances and UNF fine threading standards. Manufacturing complies with ASME B18.2.1 and SAE J429 specifications, ensuring dimensional accuracy and mechanical properties. The Grade 8 classification guarantees 150,000 psi tensile strength and Rockwell C33 hardness requirements are consistently met. The zinc yellow-chromate plating provides corrosion protection while maintaining compliance with industrial fastener standards for reliable performance in demanding applications.