S-98930A334 M12 x 45 mm ISO 8678 Carriage Bolts

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc yellow-chromate plating that protects against rust in harsh industrial environments
• Non-rotating installation thanks to the square neck design that locks securely into materials during tightening
• High tensile strength of 110,000 psi (Class 8.8) ensures reliable performance under heavy loads and vibration
• Excellent thread engagement with fully threaded M12 coarse pitch (1.75mm) for faster assembly and superior holding power
• Precise dimensional control with Class 6g thread fit and Rockwell C22 hardness for consistent performance and durability
• Wide bearing surface from the 26.6mm rounded carriage head distributes load effectively and prevents pull-through
• International compliance meeting ISO 8678 specifications for guaranteed quality and global project acceptance

Professional Applications & Engineering Value

This M12 carriage bolt delivers exceptional engineering value in demanding applications where vibration resistance and security are paramount. The zinc yellow-chromate plated steel construction provides superior corrosion protection for outdoor equipment, structural frameworks, and machinery exposed to moisture or chemicals. The integrated square neck design eliminates rotation during installation, making it ideal for wood-to-metal connections, trailer assemblies, and construction applications where disassembly isn't required. With its fully threaded coarse pitch configuration and Class 8.8 strength rating, this bolt maintains clamping force under dynamic loads while allowing for quicker installation compared to fine-thread alternatives. The combination of 110,000 psi tensile strength and precise metric threading ensures reliable performance in heavy-duty industrial fastening scenarios.

Specification Summary & Compliance

This carriage bolt features M12 x 1.75 mm coarse metric thread with Class 6g tolerance for precise fitment. Manufactured to ISO 8678 specifications, it ensures dimensional accuracy and performance consistency. The Class 8.8 strength grade corresponds to 110,000 psi tensile strength with Rockwell C22 hardness for optimal durability. The zinc yellow-chromate plating provides corrosion resistance while maintaining compliance with RoHS and REACH environmental standards for industrial use.