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Finally, use appropriate torque when tightening screws down. A properly fastened screw will be snug, but not so tight that your driver starts to slip.

This is largely a matter of feel, so your technique will improve with practice.

Smaller screws generally require less torque; over tightening them can damage their threads.

Very small screws—such as those used in phones and tablets—require almost no tightening force at all. As soon as you feel resistance, give it about another quarter turn and then stop.

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