Countersink-Counterbore-Screws

Published December 12, 2012 at 340 × 586 in How to Tell the Difference Between Countersink and Counterbore Screw Holes and Usage

Counterbore and countersink hole side views.

The key difference between countersink and counterbore screws are the size and shape of the holes, counterbore holes are wider and more square to allow for the addition of washers.

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