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Why Use Kreg Screws?
Kreg Jigs®  make it incredibly easy to build with wood—allowing you to assemble projects with screws, rather than complicated joints that require advanced skills and expensive tools. While the Kreg Jig® makes this possible, it’s the Kreg Screw that makes it all work—holding your pieces together to create a strong, long-lasting joint.

Kreg Screws aren’t just ordinary screws. They’re engineered with unique features that ensure they’ll provide the best possible results in Kreg pocket-hole joinery. In this edition of Kreg Plus, we’ll take a closer look at the features engineered into a Kreg Screw to understand how it works.
Square-Drive Head
One of the easiest ways to see those features is to compare a Kreg Screw to a standard screw. For starters, the Kreg Screw has a square-drive head. The square-drive bit fits deeply into the head, which makes it easy to drive the screw. With an ordinary screw, the driver can slip easily, and that can prevent you from driving the screw all the way or, worse yet, strip the screw head.
A Kreg Screw looks different from an ordinary screw at the other end, too. It’s what we call a self-tapping tip. This indentation allows the tip of the screw to work kind of like a drill bit, boring its own pilot hole as you drive the screw in. Just drive the screw, and it creates its own hole—without splitting the wood. Try that with an ordinary screw, and the results are usually much different.
Smooth Shank
You’ll also notice that a Kreg Screw doesn’t have threads along its entire length like an ordinary screw does. To see why that’s important, look at a cutaway view of a Kreg Joint. As you drive the screw in, the threads bite into the mating piece. In the pocket hole, the smooth section of the screw can turn freely so the joint pulls together tightly. With an ordinary screw (upper right), the threads on the upper portion of the screw can prevent the joint from drawing tight.
Flat-Bottom Head
The cutaway helps illustrate one more important feature of the Kreg Screw—the flat underside of the screw head. That flat area fits perfectly against the ledge at the bottom of the pocket. As the screw cinches down, this directs all the screw’s force straight in line with the screw and draws the Kreg Joint tightly together. With an ordinary screw (upper right), the flared shape of the head directs force outward as the screw cinches down. This can prevent a tight joint, and even split out the base of the pocket hole.
There’s one important feature of a Kreg Screw that you can’t see just by looking at it. It’s case hardened. Kreg Screws are treated to have a hard outer shell that gives them toughness, sharp threads, and a head that doesn’t strip out. But case hardening allows the inner part of the screw to be a bit softer. That’s good, because a softer core prevents the screws from being brittle, which can cause ordinary screws to snap.

Looking at all those features, it’s easy to see why we say your Kreg projects demand Kreg Screws. They’re engineered with a square drive, flat-bottom head, smooth shank, case-hardened steel, and self-tapping tip that combine to ensure that Kreg Screws will give you the results you expect—every time—when you build projects with Kreg Joinery (or with your Kreg Jig®). And now, when you look at a Kreg Screw, you know how it works!
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Upholstered Top Storage Coffee Table
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