S-94967A682 1/2"-13 x 2" ASME B18.2.1, ASTM B117, SAE J429 Medium-Strength Grade 5 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with black protective coating, extending service life in harsh environments
• High-strength Grade 5 construction delivers 120,000 PSI tensile strength for reliable heavy-duty fastening
• Precise UNC coarse threading with Class 2A fit ensures quick installation and secure engagement
• Full-threaded design maximizes grip length and distributes load evenly across the entire fastener
• Standard-compliant manufacturing meets ASME B18.2.1, ASTM B117, and SAE J429 for consistent quality
• External hex drive provides superior torque transmission and easy installation with common tools
• Rockwell C25 hardness maintains structural integrity under high stress and repeated use

Professional Applications & Engineering Value

This Grade 5 hex head screw combines black corrosion-resistant coated steel construction with UNC coarse threading to address critical industrial fastening challenges. The fully threaded design ensures maximum thread engagement in structural assemblies, while the external hex drive allows for high-torque installation in confined spaces. Engineered for heavy machinery, construction equipment, and transportation applications, these screws prevent galvanic corrosion and maintain 120,000 PSI tensile strength under dynamic loads. The Class 2A thread fit guarantees consistent performance in high-vibration environments where fastener integrity is paramount.

Specification Summary & Compliance

Manufactured to ASME B18.2.1 dimensional standards with Class 2A thread fit tolerance. Meets material specifications per ASTM B117 salt spray testing and SAE J429 Grade 5 mechanical requirements. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. Inch system measurements include 1/2"-13 UNC coarse thread, 2" length, and 3/4" hex head width.