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Body Diameter Body Diameter |
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For Screw Size For Screw Size | Show |
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For Screw Size For Screw Size | Hide |
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Pilot Head Diameter Pilot Head Diameter |
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Material Material |
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Shank Type Shank Type |
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![]() | Round |
Number of Flutes Number of Flutes |
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![]() | 2 |
Pilot Length Pilot Length |
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Overall Length Overall Length |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Diameter Rating Diameter Rating |
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Individual/Set Individual/Set |
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About Counterbores

Counterboring—Enlarge the top of an existing hole to create a cylindrical-shaped opening with a flat bottom that acts as a seat for the head of a screw or wood plug.
More
Counterbores for High-Profile Rounded-Head Screws

The built-in pilot maintains alignment in the hole.
For technical drawings and 3-D models, click on a part number.
Pilot | |||||||||
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For Screw Size | Body Dia. | Head Dia. | Lg. | Overall Lg. | Number of Flutes | Flute Style | For Use On | Each | |
Uncoated High-Speed Steel | |||||||||
No. 12 | 0.372" | 0.215" | 0.250" | 3" | 2 | Spiral | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |