The head of the Cup oval neck bolts for fish plate is cup-shaped, with an oval neck attached below, and the screw part is threaded. There are various sizes available, with diameters ranging from M12 to M24, and the length can be customized according to the thickness of the fishplate.
This is used to fix the tracks of the bridge gantry crane. The fishplates are connected to the track sections and fixed with them. Elliptical neck bolts can prevent the bolt head from rotating when the nut is tightened to bear the weight and rolling force of the crane. Prevent the crane wheels from derailing during operation.
The Cup oval neck bolts for fish plate are used for the installation of tunnel tracks. When laying tracks for trains or transportation systems in the tunnel, the tunnel has always been in a damp and dirty state. The fishplate uses cup-shaped oval neck bolts because the oval neck can prevent rotation when tightened in damp and harsh environments.
They can be used to connect the track sections of mine cars. Underground mines use tracks to transport heavy mine cars, which can prevent loosening. The bolt cannot rotate, so even when a fully loaded mine car constantly passes by the joint and generates severe impact and vibration, the nut can remain tight.
The most distinctive feature of the Cup oval neck bolts for fish plate is its oval neck. When installing, the elliptical neck can quickly slide into the groove of the fishplate, without the need for precise Angle alignment like the square neck bolts, saving a lot of time. Moreover, the contact surface between the elliptical neck and the groove is large, which can better resist vibration and prevent the bolts from loosening. For example, on mountainous railway lines, when trains pass through curves, lateral forces will be generated. Elliptical neck bolts can better cope with this situation.