Suzhou Zhongyue Railway Material Co.,Ltd.
Suzhou Zhongyue Railway Material Co.,Ltd. Where there is a railway, there we are!
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1. Introduce:
A rail screw spike, also called sleeper screw, rail screw or lag bolt, is a medium or large metal screw used to fasten a rail base plate or rail. Such spikes are always fastened into holes bored into the tie sleeper, sometimes together with imbedded plastic dowels, popularly used for rails with wooden sleepers, especially in America and Canada.
2. Technical Details
| Product | Tensile Strength | Yield Strength | Elongation | Reduction of Area | Hardness |
| High Tensile Screw | 120,000psi(min) | 92,000psi(min) | 14%(min) | 35%(min) | HRC22-HRC32 |
3. Standard:
AREMA, DIN571, Europe standard or other standard required by clients.
4. Specification:
Diameter from 12mm to 27mm, without lenth limited.
5. Grade:
ASTM A307, ASTM A325, Grade 4.6, 4.8, 5.6, 5.8, 8.8
6. Surface:
Black, zinc white, zinc yellow, hot dip galvanised, zinc infiltrated.
Our products are mainly made through hot forging.
The threads of rail screw spikes are made by hot rolling with special threading machines.
We produce metric threads, BS, BSW, TR thread, or round threads.
We also make rail fastenings for crane rail and elevator guide rail, along with other related products. We manufacture according to GB/TB (Chinese national standards and railway standards), AREA, UIC, BS, DIN, ASTM, and AS standards.
8. Our product range:
