S-97248A318 M8 x 20 mm DIN 603, ISO 8678 Carriage Bolts
Carriage Bolts
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Basic Information
Head Parameters
Neck & Shank Parameters
Dimension Parameters
Thread Parameters
Material & Strength Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Superior corrosion resistance with 18-8 stainless steel construction for long-lasting performance in harsh environments
- Maximum anti-rotation security through integrated square neck design that prevents spinning during installation
- High tensile strength of 70,000 psi ensures reliable load-bearing capacity for demanding industrial applications
- Precision coarse threading (1.25mm pitch) enables faster installation and reduced cross-threading risks
- Full threading along 20mm length provides consistent engagement and clamping force throughout the fastener
- Standardized metric dimensions (M8) guarantee compatibility with existing equipment and international specifications
- Rounded carriage head profile offers smooth finished appearance while distributing load effectively
Professional Applications & Engineering Value
These M8 carriage bolts deliver exceptional engineering value through their 18-8 stainless steel composition and specialized square neck design. The corrosion-resistant properties make them ideal for outdoor equipment, marine applications, and food processing machinery where moisture exposure is common. The fully threaded configuration with Class 8g thread fit ensures precise engagement in pre-tapped holes or with matching nuts, while the square neck positively locks into mounting surfaces to prevent rotation during vibration or dynamic loading conditions. This combination of metric coarse threading and anti-rotation features solves critical assembly challenges in automotive framing, structural connections, and heavy machinery where both installation efficiency and long-term reliability are paramount.
Specification Summary & Compliance
Manufactured to DIN 603/ISO 8678 standards with M8 x 1.25mm coarse pitch threading and Class 8g thread tolerance. The 20mm length features a square neck measuring 8mm width and 5.6mm length. These carriage bolts maintain full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors while meeting international metric fastener specifications.
