S-98930A326 M12 x 30 mm ISO 8678 Carriage Bolts
Carriage Bolts
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Basic Information
Head Parameters
Neck & Shank Parameters
Dimension Parameters
Thread Parameters
Material & Strength Parameters
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Key Features & Benefits at a Glance
- Superior corrosion resistance with zinc yellow-chromate plating that protects against rust in harsh industrial environments
- Exceptional tensile strength of 110,000 psi and Class 8.8 grade ensures reliable performance under heavy loads
- Anti-rotation security with square neck design that prevents bolt turning during installation and operation
- Optimized thread engagement with fully threaded M12 coarse pitch (1.75mm) for faster assembly and strong holding power
- Precision manufacturing with Class 6g thread fit and Rockwell C22 hardness for consistent quality and durability
- Easy identification and handling with rounded carriage head profile and 26.6mm head diameter
- International compliance meeting ISO 8678 specifications for global engineering applications
Professional Applications & Engineering Value
These M12 carriage bolts with Class 8.8 strength rating and zinc yellow-chromate plated steel construction deliver critical performance in demanding industrial settings. The fully threaded design with coarse pitch ensures rapid installation in wood-to-metal applications, structural frameworks, and heavy equipment assembly. The square neck provides positive locking against rotation, eliminating the need for additional locking mechanisms and reducing assembly time. With 110,000 psi tensile strength and Rockwell C22 hardness, these metric fasteners withstand vibration and dynamic loads in construction, machinery, and transportation equipment while the corrosion-resistant plating extends service life in outdoor or humid environments.
Specification Summary & Compliance
This carriage bolt features M12 x 1.75mm coarse thread with Class 6g thread fit tolerance, 30mm length, and 26.6mm rounded head diameter. Manufactured from steel with zinc yellow-chromate plating for corrosion protection, it meets ISO 8678 specifications for dimensional accuracy and performance requirements. The Class 8.8 strength grade corresponds to 110,000 psi tensile strength, ensuring compliance with international engineering standards for industrial fastening applications.
