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Freeing up bolts, screws and nuts with penetrating and cutting oils

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What is the issue?
Bolts, screws and nuts, like most every fastening, have a tendency to seize up on boats due to the challenging sea going environment.

Why address this?
A seized screw, bolt or nut can halt a project, cause frustration and cost money.

How to address this?
Lubricants, cutting oils and penetrating oils are an invaluable aid to the process of freeing up bolts and nuts. Manufacturers promote the abilities of these light oils to seep into rusted threads aiding the release of a seized bolt. rnHowever these are at best a time based strategy. If your project is pressed for time, irrespective of what the marketing materials suggest, you will seldom find quick success. rnrnGiven sufficient time these oils do help. They are highly useful in situations where you can leave the seized bolt for a few days or even weeks. rnrnChildren’s play dough can assist the process by creating a damn so that a lake of penetrating oil may be sat around the bolt to work its way down in time – see figure 1.rn

With thanks to:
Michael Harpur, Yacht Obsession.

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