Track Part Railway Sleeper Spike
1.The screw spike material is Q235-A steel, technical requirements should be consistent with GB700.
2.The upper thread screw spike is M24, the basic size shall comply with the provisions of GB196, making thread tolerances as specified in the GB197 8g.
3.The lower part of the thread spiral spike for M25.6 x 6 - d24.0/25.6 threads, teeth as high as 3.25 - 00.25mm.
4.At the end of the spiral spike manufacturing according to the provisions of GB2. 4.5.1 cone surface of the spiral spike burst fracture is not allowed to extend to the forging shaft.
5.2The upper thread screw spike is not allowed with bumps and burr free running thread gauge, influence the use of double cusp, scratches and incomplete thread is not allowed.
5.3The lower thread tooth shaped screw spike should be neat, threaded integrity, splitting traces is not allowed.
5.4The spiral spike surface are not allowed to affect the use of the dent, burr, flash, burn and oxide skin.
6.Should be real spiral spike tension test, when the load is 130kN, no broken screw spike.
steel zinc plating screw spikes
4.8 6.8. 8.8 10.9
carbon Steel, alloy Steel
black,galvanized, dacromet, alloy permeability,etc.
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Packaging Details:woven bags or cartons or wooden case
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