![]() The enlarged head, along with the security provided by the hex shape, allows you to apply much more torque while simultaneously reducing the potential for stripping the screws. Hex Washer - Hexagonal, Hex head, or hex washer screws have a much larger head than most of the other types.For this reason, we also call them countersunk screws, since it has the same effect as when you countersink the project to make room for the screw head. They're ideal for projects where the screw head should be flush with the surface of the project, or not protrude at all. Flat - As the name suggests, flat-head self-tapping screws have a flattened profile from above.Let's investigate some of the different types: One of the most significant differences between different types of self-tapping screws, the head shape, can make a significant impact on the potential uses of these fasteners. Rather than cutting or displacing the material, it rolls the material away from the screws. Thread rolling screws - This type of screw has helical ridges that are perfectly spaced according to a geometric construct.Thread-cutting screws - The threads on thread-cutting screws are sharp and distinct, allowing them to cut into the material and create distinct threads.They have shallower threads, placed closer together, than thread-cutting screws. Thread-forming screws - The unique thread design on thread-forming screws displaces the material around the screw rather than cutting or removing it. ![]() It's worth noting that both self-tapping screws and self-drilling screws have a few different versions of thread creation. Let's discuss some of the different types of self-tapping screws. Whether you're looking for self-drilling screws or self-tapping screws, you'll discover more types than you'd initially think.
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