S-91268A260 1/2"-13 x 2" ASME B18.2.1, SAE J429 High-Strength Grade 8 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional strength for critical applications with Grade 8 classification and 150,000 PSI tensile strength, providing reliable performance under extreme loads.
• Superior durability and wear resistance due to Rockwell C33 hardness, ensuring long service life in harsh industrial environments.
• Easy and secure installation with a 3/4" external hex head design, allowing for high torque application and reduced slipping.
• Optimized for rapid assembly featuring coarse UNC threading and Class 2A fit, which resists vibration loosening and speeds up installation.
• Full-length threading for maximum grip across the entire 2" length, offering consistent holding power and versatility in material thickness.
• Compliance with major industry standards including ASME B18.2.1 and SAE J429, ensuring interchangeability and reliability in professional settings.
• Environmentally responsible manufacturing with RoHS 3 and REACH compliance, meeting global regulatory requirements for safe usage.

Professional Applications & Engineering Value

Engineered for heavy-duty industrial applications, this Grade 8 hex head screw delivers critical performance where failure is not an option. The steel construction combined with 150,000 PSI tensile strength and Rockwell C33 hardness provides exceptional resistance to shear and tensile stresses, making it ideal for machinery, structural frames, and automotive assemblies. The UNC coarse thread with Class 2A fit ensures quick engagement and superior vibration resistance, reducing maintenance needs in dynamic environments. Its fully threaded design and external hex drive allow for straightforward installation and consistent clamping force, solving common issues of joint loosening and material fatigue in demanding sectors like construction, manufacturing, and heavy equipment.

Specification Summary & Compliance

This screw adheres to precise dimensional standards with a Class 2A thread fit and UNC coarse threading (1/2"-13), ensuring compatibility and ease of use. Manufactured in compliance with ASME B18.2.1 and SAE J429 Grade 8 specifications, it guarantees consistent quality and performance. The product is also verified to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting environmental and safety regulations for industrial and international markets.