S-98930A201 M6 x 50 mm ASME B18.5, ISO 8678 Carriage Bolts

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc yellow-chromate plating, extending service life in harsh environments
• High tensile strength of 110,000 PSI and Class 8.8 grade for reliable load-bearing in demanding applications
• Square neck design prevents rotation during installation, ensuring secure fastening without slipping
• Fully threaded M6 coarse pitch (1mm) enables quick assembly and strong holding power
• Rockwell C22 hardness provides excellent durability and resistance to wear
• Compliance with ASME B18.5 and ISO 8678 standards guarantees consistent quality and interchangeability
• Right-hand threading with Class 6h fit ensures precise engagement and vibration resistance

Professional Applications & Engineering Value

This M6 carriage bolt is engineered for industrial and construction applications where vibration resistance and long-term reliability are critical. The zinc yellow-chromate plated steel construction offers enhanced corrosion protection, making it suitable for outdoor equipment, machinery frames, and structural assemblies exposed to moisture. The square neck securely locks into materials, preventing rotation during torque application—solving common installation challenges in wood-to-metal and heavy-duty fastening. With its fully threaded metric coarse thread and Class 8.8 strength, it delivers consistent performance in high-stress environments, reducing maintenance needs and downtime.

Specification Summary & Compliance

This carriage bolt features M6x1mm coarse thread with Class 6h thread fit for precise tolerance, and meets ASME B18.5 and ISO 8678 specifications. It complies with industry standards for dimensional accuracy and material properties, ensuring reliable performance in mechanical and structural applications. The product adheres to RoHS and REACH environmental regulations, providing a safe and compliant fastening solution.