What are thread-cutting screw tips?
What are thread-cutting screw tips? |
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A screw with a thread-cutting tip cuts its own thread in material when being driven in.
It does this by cutting through the material, and removing a small amount, rather than pushing against it. |
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What are the different types of thread-cutting tip? |
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Type 17A type 17 tip is long and pointed with a sharp cutting flute to capture chips. |
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Type 17 tips are usually found on wood and decking screws. |
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Type FA type F tip is slightly tapered with a flat end.
Along the side of the tip are sharp, thread-cutting edges and chip cavities to collect waste material. |
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These kinds of tips are usually used in materials such as heavy gauge sheet metal, zinc, aluminium, brass and plastic. |
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Type F tips are usually found on machine screws |
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Type 25A type 25 tip has a flat end but with several cutting edges around the sides and a flute for chip clearance. |
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This type of tip is usually found on machine screws. |
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