S-98930A136 M8 x 60 mm ISO 8678 Carriage Bolts

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc yellow-chromate plating for extended service life in harsh environments
• Exceptional tensile strength rated at 110,000 PSI (Class 8.8) for reliable performance in demanding applications
• Non-rotating installation ensured by the square neck design that locks securely into materials during tightening
• Optimized thread engagement with Class 6g fit and coarse 1.25mm pitch for faster assembly and reduced cross-threading risk
• Enhanced durability from Rockwell C22 hardness providing excellent resistance to wear and deformation
• Precision engineering meeting ISO 8678 specifications for consistent quality and international compatibility
• Versatile partial threading allowing unthreaded shank sections to bear shear loads while threaded portions secure fastening

Professional Applications & Engineering Value

These M8 carriage bolts deliver critical engineering solutions for industrial applications where vibration resistance and structural integrity are paramount. The zinc yellow-chromate plated steel construction provides superior protection against corrosion in outdoor equipment, agricultural machinery, and construction applications. The square neck design prevents rotation during installation, eliminating the need for secondary locking mechanisms and reducing assembly time. With partial threading and coarse metric thread pitch, these fasteners maintain clamping force under dynamic loads while allowing for quick installation in wood-to-metal and structural steel connections. The Class 8.8 strength rating ensures reliable performance in heavy-duty applications where fastener failure is not an option.

Specification Summary & Compliance

This M8 carriage bolt features precise metric threading with 1.25mm pitch and Class 6g thread fit tolerance for consistent engagement. The fastener maintains ISO 8678 specifications throughout manufacturing, ensuring dimensional accuracy and performance reliability. With 22mm minimum thread length and 60mm total length, the bolt provides optimal thread engagement for various material thicknesses. The zinc yellow-chromate plating meets industrial corrosion protection standards while the Class 8.8 strength classification guarantees mechanical properties per international fastener standards for professional and industrial use.