S-92865A626 3/8"-16 x 1 1/4" ASME B18.2.1, SAE J429 Medium-Strength Grade 5 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional Tensile Strength – With 120,000 PSI tensile strength, this screw provides reliable, high-load fastening for demanding industrial applications, reducing the risk of failure under stress.
• Superior Corrosion Resistance – Zinc plating offers effective protection against rust and environmental elements, extending service life in harsh conditions.
• Optimized for Easy Installation – The external hex drive and coarse UNC threading allow for quick, secure tightening with standard tools, saving time and labor.
• Consistent Performance & Durability – Grade 5 steel and Rockwell C25 hardness ensure the fastener maintains integrity and resists wear, even in high-vibration settings.
• Precision Thread Fit – Class 2A thread fit guarantees smooth engagement and reliable hold, minimizing cross-threading and assembly errors.
• Full Threading for Maximum Grip – Fully threaded design distributes clamping force evenly, enhancing joint stability across the entire length.
• Compliant with Industry Standards – Meets ASME B18.2.1 and SAE J429 specifications, ensuring compatibility and reliability in regulated environments.

Professional Applications & Engineering Value

Engineered for heavy-duty industrial applications, this 3/8"-16 UNC Grade 5 zinc plated steel hex head screw addresses critical fastening challenges where strength and corrosion resistance are paramount. The coarse thread spacing and fully threaded design provide superior grip in materials like steel and cast iron, reducing the likelihood of loosening under dynamic loads. Its external hex drive facilitates efficient installation with common wrenches, streamlining assembly in machinery, structural frameworks, and automotive systems. By combining high tensile strength with a protective zinc finish, this fastener delivers long-term reliability, minimizing maintenance needs and downtime in demanding operational environments.

Specification Summary & Compliance

This hex head screw features a 3/8"-16 UNC coarse thread with Class 2A thread fit for precise, reliable engagement. It complies with ASME B18.2.1 and SAE J429 manufacturing standards, ensuring dimensional accuracy and performance consistency. Additionally, the product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting environmental and safety regulations for use in various global markets.