S-98930A132 M8 x 50 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 for extended service life in harsh environments
- Exceptional mechanical strength with Class 8.8 rating and 110,000 psi tensile strength for heavy-duty applications
- Reliable anti-rotation performance thanks to the square neck design that prevents spinning during installation
- Optimized thread engagement with coarse 1.25mm pitch and Class 6g fit for faster assembly and secure fastening
- Enhanced durability with Rockwell C22 hardness that maintains structural integrity under repeated stress
- Full thread coverage along the 50mm length provides maximum adjustability and clamping force distribution
- Industry-standard compliance with ISO 8678 ensures consistent quality and interchangeability
Professional Applications & Engineering Value
These M8 carriage bolts deliver 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 the common problem of bolt rotation during nut tightening, ensuring efficient installation in pre-drilled materials without requiring additional anti-rotation measures. With fully threaded M8x1.25 coarse metric threading, these fasteners offer excellent pull-out resistance in wood-to-metal and structural steel connections, making them ideal for trailer assemblies, scaffolding, and heavy equipment manufacturing where Class 8.8 strength is required for safety-critical joints.
Specification Summary & Compliance
This carriage bolt features precision metric threading with M8x1.25 coarse pitch and Class 6g thread fit tolerance for consistent engagement. Manufactured to meet ISO 8678 specifications for dimensional accuracy and performance requirements. The Class 8.8 strength rating corresponds to 110,000 psi minimum tensile strength with Rockwell C22 hardness. The product complies with RoHS and REACH environmental regulations for hazardous substance restrictions.
