S-91286A268 7/16"-14 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 demanding applications
• Superior corrosion resistance provided by zinc-flake coating, extending service life in harsh industrial environments
• High-strength Grade 8 classification ensures consistent performance and reliability in critical assemblies
• Optimized installation efficiency through external hex drive design and coarse UNC threads for faster assembly
• Precision thread fit (Class 2A) guarantees secure fastening and vibration resistance in mechanical systems
• Full threading along the entire 1-1/2" length provides maximum grip and adjustment flexibility
• Rockwell C33 hardness rating maintains structural integrity under heavy loads and repeated use

Professional Applications & Engineering Value

Engineered for heavy-duty industrial applications, these Grade 8 hex head screws deliver exceptional performance where failure is not an option. The zinc-flake coated steel construction provides superior corrosion protection in challenging environments, while the 7/16"-14 UNC coarse threads ensure rapid installation and secure fastening in structural assemblies, machinery, and equipment. The external hex drive design allows for high-torque application, making these fully threaded screws ideal for applications requiring maximum clamping force and vibration resistance. With their 150,000 PSI tensile strength, they provide the reliability needed in construction, manufacturing, and automotive sectors where high-strength bolts are essential for safety and performance.

Specification Summary & Compliance

This inch system fastener features precision Class 2A thread fit with 7/16"-14 UNC coarse threads manufactured to exacting standards. The screw complies with ASME B18.2.1 and SAE J429 specifications for dimensional accuracy and mechanical properties. Environmental compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) standards, ensuring safe use across various industrial applications. The Grade 8 strength classification and Rockwell C33 hardness guarantee consistent performance meeting rigorous industrial requirements.