马车螺栓规格、等级、材料的全面指南，以及如何为木-金属和木-木应用选择正确的马车螺栓。
马车螺栓结构与标准规格
| 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 |
材料与等级
| 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 |
尺寸选择指南
粗牙和细牙马车螺栓有什么区别？
粗牙（标准螺距）更常见，安装更容易，抗错扣，在木材中表现更好。细牙提供更高夹紧力和更好的抗振性，但在某些市场较难采购。
马车螺栓可用于钢-钢连接吗？
通常不可以。方形颈部设计为嵌入木材或类似软材料以防止旋转。在钢-钢连接中颈部无法锁定，应使用标准六角螺栓或结构螺栓。
常见问题
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.
为建筑项目采购马车螺栓？从TradeGo Fasteners获取工厂直供价格。
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