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31/32"X6" Square Head Screw Spike for Railway Fastening
A "rail screw spike," also known as a sleeper screw or lag bolt, is a large, threaded metal fastener used to secure rails or base plates to wooden or concrete sleepers (or ties) in railway tracks, offering a more secure and durable connection than traditional spikes. 
We are able to supply railway screw spikes with various sizes that are provided to meet the different requirements of penetrating length of spikes.
Specification: Ss8, Ss25, Ss35, AS, DHS, and other kinds.
Material: Q235, 45#, 55#, etc.
Surface: According to customer's needs.
Standard: According to customer's drawings or samples.
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