Fastener Superstore Blog

Thread Cutting Screws: Types 1, 23, 25 & F (Including Grounding and Floorboard) Screws

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Thread Cutting Screws come with sharp edges at the tip, along with a chip cavity or cutout line for clearing the cut material. We carry four unique styles at Fastener SuperStore: Type 1; Type 23; Type 25 & Type F.

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Type 1 Thread Cutting Screws have machine screw threads, a blunt point and tapered threads. The primary difference from Type F is that Type 1 Screws contain only one cutting edge.

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Type 23 Thread Cutting Screws use a different style of cutting edge than Type F and Type 1. Instead of a line cut into the tip of the screw, they feature a large cut-out triangular area to allow for more clearance of materials.

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Type 25 Thread Cutting Screws offer widely spaced threads, unlike the other styles of thread cutting screws.Like Type 23, they have a large area of the tip cut out for material clearance.

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Type F Thread Cutting Screws feature machine screw threads, a blunt point, tapered ending threads and multiple cutting edges near the tip. Two subgroups of Type F Screws are Floorboard and Grounding Screws.

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