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What do I do if my bolt hole has a counterbore or non-threaded area above the threads?

April 26, 2017area bolt hole non-threaded threads

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What do I do if my bolt hole has a counterbore or non-threaded area above the threads?

1 Answer

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A6. We manufacture many special inserts for special applications where counterbores are found such as head bolt holes and main bearing bolt holes in engine blocks. If we dont have what you need on the shelf we can make it for you to match the original bolt hole. You can also order an FPS solid plug and make your own. Either way you will end up with the special Spiralhook threads that make all the difference in the world.