Tomei Head Studs Bolt Set - 4AG

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In order to secure the performance required of head gaskets, such as cooling, rigidity, and sealing, it is necessary to strengthen combination of a cylinder head and a cylinder blo ck. However, in combination with a common bolt and nut, no matter what strengthen bolt it may used, bolting power concentrates on from third mountains to the 1st mountain of the screw, and the total bolting power cannot be increased beyond a certain value. Moreover, excessive stress is concentrated and may damage the bolt. Stud bolt, on the other hand, is applied dynamic design to its threading so that the bolting force is dispersed to all the screw threads and mighty bolting power is generated. Show more