S-92620A653 3/8"-24 x 1/2" ASME B18.2.1, SAE J429 High-Strength Grade 8 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Maximum Load-Bearing Capacity: Grade 8 classification and 150,000 psi tensile strength ensure reliable performance in high-stress industrial applications, reducing the risk of fastener failure.
• Superior Corrosion Resistance: Zinc yellow-chromate plating provides a durable barrier against rust and environmental degradation, extending service life in harsh conditions.
• Precise Thread Engagement: UNF fine threads with Class 2A fit offer excellent vibration resistance and secure fastening, minimizing loosening in dynamic environments.
• High Durability & Wear Resistance: Rockwell C33 hardness and steel construction deliver exceptional resistance to wear and deformation under heavy loads.
• Easy Installation & Removal: External hex drive design with 9/16" head width allows for standard wrench compatibility, speeding up assembly and maintenance.
• Full Thread Coverage: Fully threaded 1/2" length ensures consistent clamping force and versatility across various material thicknesses.
• Regulatory Compliance & Reliability: Meets ASME B18.2.1, SAE J429, RoHS 3, and REACH standards, guaranteeing safety and environmental responsibility for global supply chains.

Professional Applications & Engineering Value

Engineered for demanding environments, this 3/8"-24 Grade 8 hex head screw combines high-strength steel with a zinc yellow-chromate finish to address critical industrial challenges such as vibration-induced loosening and corrosion in machinery, automotive, and construction assemblies. The UNF fine thread design enhances grip in softer materials and provides superior fatigue resistance, while the external hex drive ensures quick, tool-friendly installation. Ideal for heavy-duty bolting applications where 150,000 psi tensile strength and consistent performance under dynamic loads are non-negotiable, this fastener minimizes maintenance downtime and enhances structural integrity.

Specification Summary & Compliance

This screw adheres to Class 2A thread fit for precise dimensional accuracy and is manufactured in accordance with ASME B18.2.1 and SAE J429 specifications. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets stringent environmental and safety standards for industrial use worldwide.