S-98930A311 M16 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 industrial environments
• Exceptional tensile strength of 120,000 psi from Class 8.8 grade steel, providing reliable performance under heavy loads
• Effective anti-rotation design with integrated square neck that locks securely into materials during installation
• Optimized thread engagement with coarse 2mm pitch and Class 6h fit for faster assembly and vibration resistance
• Enhanced durability with Rockwell C22 hardness, maintaining structural integrity through repeated use
• Wide-rounded head design distributes clamping force evenly, reducing surface damage and improving joint stability
• Full threading capability allows for maximum adjustability and secure fastening across the entire bolt length

Professional Applications & Engineering Value

This M16 carriage bolt delivers critical engineering solutions where vibration resistance and structural integrity are paramount. The zinc yellow-chromate plated steel construction provides superior corrosion protection for outdoor equipment, agricultural machinery, and construction applications exposed to weather elements. The square neck design fundamentally solves rotation issues during nut tightening, ensuring secure installation in wood, metal framing, and heavy equipment assemblies. With its Class 8.8 strength grade and coarse thread pitch, this fully threaded bolt maintains clamping force in high-vibration environments while enabling rapid assembly in production settings. The combination of 120,000 psi tensile strength and Rockwell C22 hardness ensures reliable performance in structural connections, trailer manufacturing, and industrial machinery where failure is not an option.

Specification Summary & Compliance

This metric carriage bolt features precision Class 6h thread fit with M16x2 coarse threading and right-hand direction. Manufacturing complies with ASME B18.5 and ISO 8678 standards, ensuring dimensional accuracy and interchangeability. The fastener meets industry specifications for Class 8.8 strength grade with verified mechanical properties, and the zinc yellow-chromate plating provides RoHS and REACH compliant corrosion protection for industrial applications.