S-98930A209 M16 x 40 mm ASME B18.5, 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
- Exceptional corrosion resistance with zinc yellow-chromate plating, extending service life in harsh environments
- High tensile strength of 120,000 psi and Class 8.8 grade for reliable performance in demanding applications
- Secure anti-rotation locking provided by the square neck design, preventing bolt spinning during installation
- Full metric threading (M16 x 2mm coarse pitch) ensures maximum grip length and load distribution
- Wide rounded carriage head offers superior bearing surface and prevents pull-through in soft materials
- Precision manufacturing to ASME B18.5/ISO 8678 standards guarantees consistent quality and interchangeability
- Rockwell C22 hardness provides excellent durability and resistance to deformation under stress
Professional Applications & Engineering Value
Engineered for heavy-duty industrial applications, these M16 carriage bolts deliver critical performance where vibration resistance and structural integrity are paramount. The zinc yellow-chromate plated steel construction provides superior protection against rust and corrosion in outdoor construction, agricultural equipment, and transportation infrastructure. The square neck design securely locks into materials during installation, eliminating rotation issues in wood, metal framing, and composite assemblies. With Class 8.8 strength rating and fully threaded metric configuration, these fasteners maintain clamping force in high-vibration environments while the coarse thread pitch enables quicker installation in production settings.
Specification Summary & Compliance
This carriage bolt features precision M16 x 2mm coarse thread with Class 6h thread fit tolerance ensuring consistent engagement. Manufacturing complies with ASME B18.5 and ISO 8678 specifications for dimensional accuracy and performance reliability. The 40mm length with 35mm head diameter and 16.7mm square neck provides optimal proportions for standard applications. Material certification includes compliance with industry standards for Class 8.8 mechanical properties and surface treatment specifications.
