S-98930A222 M16 x 100 mm ASME B18.5, ISO 8678 Carriage Bolts

Key Features & Benefits at a Glance

• Superior anti-rotation performance thanks to the integrated square neck that locks securely into materials, preventing loosening under vibration and dynamic loads.
• High tensile strength of 120,000 psi from the Class 8.8 steel construction, ensuring reliable performance in demanding structural and heavy-duty applications.
• Enhanced durability and wear resistance provided by the Rockwell C22 hardness, extending the bolt's service life in harsh industrial environments.
• Secure and precise coarse threading with M16x2mm metric thread and Class 6g fit, enabling faster installation and robust load distribution.
• Optimized partial threading design that allows for effective clamping over a 38mm thread length while maintaining a smooth shank for shear resistance.
• Broad regulatory compliance including RoHS 3 and REACH, ensuring environmental safety and material suitability for global industrial supply chains.
• Rounded carriage head design with a wide 35mm diameter for a low-profile finish and reduced risk of snagging, improving worksite safety.

Professional Applications & Engineering Value

This M16 carriage bolt is engineered to address critical challenges in heavy machinery, structural framing, and transportation equipment where vibration resistance and joint integrity are paramount. The square neck design mechanically locks into assembled materials, eliminating rotation during torque application and preventing loosening in dynamic operating conditions. Manufactured from Class 8.8 steel with a Rockwell C22 hardness, it delivers exceptional shear strength and fatigue resistance, making it ideal for high-stress connections in construction, agricultural machinery, and trailer assemblies. The partially threaded configuration with coarse metric threading ensures rapid installation and reliable clamping force, while compliance with ASME B18.5 and ISO 8678 guarantees dimensional precision and interchangeability in global engineering projects.

Specification Summary & Compliance

This metric carriage bolt features a Class 6g thread fit with M16x2mm coarse threading and a minimum thread length of 38mm, ensuring precise engagement and load distribution. It is manufactured in accordance with ASME B18.5 and ISO 8678 standards for dimensional accuracy and mechanical properties. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming adherence to environmental and material safety requirements for industrial use.