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A "diamond neck track bolt" is another type of fastening component used in railroad construction and maintenance to secure rails to the underlying wooden ties (sleepers). This type of bolt is designed with a unique neck shape that resembles a diamond, which serves specific purposes in rail track fastening. The diamond neck design ensures a tight fit between the bolt head and the rail base. This tight fit contributes to the overall stability of the rail by minimizing any potential movement or shifting. The unique shape of the diamond neck helps prevent rotation of the bolt within the hole, maintaining the intended alignment and preventing any loosening over time. The multiple contact points provided by the diamond neck can help absorb and dampen vibrations caused by passing trains. This feature contributes to a smoother and quieter train operation. Diamond neck track bolts are often favored for high-speed rail applications, where stability, alignment, and reduced vibration are critical for maintaining safe and efficient operations at higher speeds.
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Product name |
Diamond neck track bolt |
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Size |
According to the drawing provided by the customer. |
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Grade |
4.8, 6.8, 8.8, 10.9, 12.9, A2-70, A4-80 |
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Standard |
ISO, GB, BS, DIN, ANSI, JIS, Non-standard |
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Material |
1. Stainless steel: 201, 303, 304, 316, 410 |
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2. Carbon steel: C1006, C1010, C1018, C1022, C1035K, C1045 |
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3. Copper: H62, H65, H68 |
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4. Aluminum: 5056, 6061, 6062, 7075 |
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5. According to customer demand |
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Package |
Plastic bag / small box +outer carton +pallets |
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After-sales Service |
We will follow up every customer and solve all your problems satisfied after sales |
The diamond neck shape distributes the forces generated by trains more evenly across the rail and tie, reducing the risk of localized stress concentrations that could lead to rail or tie damage. The installation of diamond neck track bolts typically requires specialized tools such as wrenches or hydraulic torque equipment to ensure proper tightening and secure fastening. It's essential to apply the correct amount of torque during installation to achieve the desired level of tightness without over-tightening, which could damage the components.
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