कैरिज बोल्ट विशिष्टताओं, ग्रेड, सामग्रियों की व्यापक मार्गदर्शिका।
Carriage Bolt Anatomy and Standard Specifications
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| Standard | Head Shape | Diameter Range | Common Use |
|---|---|---|---|
| DIN 603 | Round + Square Neck | M5-M24 | General wood construction |
| ISO 8677 | Round + Square Neck | M5-M24 | International projects |
| ASME B18.5 | Round + Square Neck | 1/4"-1" | North American market |
| BS 4490 | Mushroom Head | M6-M20 | UK / Commonwealth markets |
Materials and Grades
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| Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Typical Application |
|---|---|---|---|
| 4.6 | 400 | 240 | Light-duty wood framing |
| 8.8 | 800 | 640 | Structural wood connections |
| 10.9 | 1000 | 900 | Heavy structural, bridges |
| A2-70 (SS) | 700 | 450 | Outdoor, coastal projects |
| A4-80 (SS) | 800 | 600 | Marine, chemical exposure |
Sizing and Selection Guide
Content coming soon.
What is the difference between coarse and fine thread carriage bolts?
Coarse thread (standard pitch) is more common and easier to install, resists cross-threading, and performs better in wood. Fine thread provides higher clamping force and better vibration resistance but is harder to source in some markets.
Can carriage bolts be used in steel-to-steel connections?
Generally no. The square neck is designed to embed into wood or similar soft materials to prevent rotation. In steel-to-steel connections, the neck cannot lock, and standard hex bolts or structural bolts should be used instead.
सामान्य प्रश्न
See frequently asked questions below.
What are Technical Guide and how are they used?
Technical Guide are essential components in construction and manufacturing. Proper selection depends on load requirements, environmental conditions, and material compatibility.
How do I choose the right fastener for my project?
Consider the material being fastened, load requirements, environmental exposure, and applicable standards. Consult with a professional if unsure about specifications.
What materials are available for these fasteners?
Common materials include carbon steel, stainless steel, alloy steel, and specialty alloys. Each offers different strength, corrosion resistance, and cost characteristics.
Do you offer custom manufacturing?
Yes, we offer custom fastener manufacturing to spec. Contact our sales team with your requirements for pricing and lead times.
Sourcing carriage bolts for your construction project? Get factory-direct pricing from TradeGo Fasteners.
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