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For Use In For Use In |
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Threading Threading |
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For Maximum Wood Thickness For MaximumWood Thickness |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement)  |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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About Tapping Screws
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Steel Phillips Drilling Screws for Joining Wood to Metal
These screws speed installation by drilling, tapping, and fastening wood and metal in a single operation. Length is measured from the top of the head.
Screws with cutting wings drill a slightly larger hole in the wood to allow for expansion. The wings break off when they contact metal, so the screw can tap the remainder of the hole.
Zinc-plated steel screws resist corrosion in wet environments.
Corrosion-resistant-coated steel screws are a good choice for ACQ-treated (arsenic-free) lumber.
For technical drawings and 3-D models, click on a part number.
Head | |||||||||||||||
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| Lg. | Screw Features | Drill Point Size | Drill Tip Lg. | For Metal Thick. | For Wood Thick. | Dia. | Ht. | Drive Size | Thread Size | Approximate Threads per Inch | Threading | Min. Thread Lg. | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel | |||||||||||||||
No. 10 | |||||||||||||||
| 3 1/2" | Cutting Wings | No. 4 | 3/8" | 0.11"-0.21" | 0.75"-2.5" | 0.362" | 0.116" | No. 2 | 10-24 | __ | Fully Threaded | __ | 10 | 000000000 | 00000 |
| 4" | Cutting Wings | No. 4 | 3/8" | 0.11"-0.21" | 0.75"-2.75" | 0.362" | 0.116" | No. 2 | 10-24 | __ | Fully Threaded | __ | 5 | 000000000 | 0000 |
No. 12 | |||||||||||||||
| 2" | Cutting Wings | No. 4 | 7/16" | 0.11"-0.25" | 0.5"-1.25" | 0.412" | 0.132" | No. 3 | 12-24 | __ | Fully Threaded | __ | 10 | 000000000 | 00000 |
| 2 1/2" | Cutting Wings | No. 4 | 7/16" | 0.11"-0.25" | 0.5"-1.5" | 0.412" | 0.132" | No. 3 | 12-24 | __ | Fully Threaded | __ | 10 | 000000000 | 00000 |
| 3 1/2" | Cutting Wings | No. 4 | 7/16" | 0.11"-0.25" | 0.75"-2.5" | 0.412" | 0.132" | No. 3 | 12-24 | __ | Fully Threaded | __ | 5 | 000000000 | 0000 |
| 4" | Cutting Wings | No. 4 | 7/16" | 0.11"-0.25" | 0.75"-2.625" | 0.412" | 0.132" | No. 3 | 12-24 | __ | Fully Threaded | __ | 5 | 000000000 | 00000 |
1/4" | |||||||||||||||
| 2 3/4" | Cutting Wings | No. 4 | 1/2" | 0.11"-0.375" | 0.75"-1.75" | 0.472" | 0.153" | No. 3 | 1/4"-20 | __ | Fully Threaded | __ | 10 | 000000000 | 00000 |
| 3 1/4" | Cutting Wings | No. 4 | 1/2" | 0.11"-0.375" | 0.75"-2.25" | 0.472" | 0.153" | No. 3 | 1/4"-20 | __ | Fully Threaded | __ | 5 | 000000000 | 00000 |
| 3 1/2" | Cutting Wings | No. 4 | 1/2" | 0.11"-0.375" | 0.75"-2.5" | 0.472" | 0.153" | No. 3 | 1/4"-20 | __ | Fully Threaded | __ | 5 | 000000000 | 00000 |
| 3 3/4" | Cutting Wings | No. 4 | 1/2" | 0.11"-0.375" | 0.75"-2.75" | 0.472" | 0.153" | No. 3 | 1/4"-20 | __ | Fully Threaded | __ | 5 | 000000000 | 00000 |
Corrosion-Resistant-Coated Steel | |||||||||||||||
No. 10 | |||||||||||||||
| 3/4" | __ | No. 3 | 1/4" | 0.04"-0.17" | 0.25"-0.375" | 0.48" | 0.144" | No. 2 | 10-24 | __ | Fully Threaded | __ | 100 | 000000000 | 00000 |
| 1" | __ | No. 3 | 1/4" | 0.04"-0.17" | 0.25"-0.5" | 0.48" | 0.144" | No. 2 | 10-24 | __ | Fully Threaded | __ | 100 | 000000000 | 00000 |
| 1 1/4" | __ | No. 3 | 1/4" | 0.04"-0.17" | 0.25"-0.75" | 0.48" | 0.144" | No. 2 | 10-24 | __ | Fully Threaded | __ | 100 | 000000000 | 0000 |
| 1 7/16" | Cutting Wings | No. 3 | 1/4" | 0.06"-0.17" | 0.25"-0.75" | 0.41" | 0.17" | No. 2 | 10-24 | __ | Fully Threaded | __ | 50 | 000000000 | 00000 |
| 1 1/2" | __ | No. 3 | 1/4" | 0.04"-0.18" | 0.25"-0.75" | 0.48" | 0.144" | No. 2 | __ | 16 | Fully Threaded | __ | 100 | 000000000 | 00000 |
| 1 13/16" | __ | No. 3 | 13/16" | 0.04"-0.15" | 0.25"-0.75" | 0.47" | 0.135" | No. 2 | __ | 16 | Fully Threaded | __ | 50 | 000000000 | 0000 |
No. 12 | |||||||||||||||
| 1 5/8" | Cutting Wings | No. 4 | 7/16" | 0.13"-0.25" | 0.75"-1.125" | 0.476" | 0.25" | No. 3 | 12-24 | __ | Fully Threaded | __ | 50 | 000000000 | 00000 |
| 1 3/4" | Cutting Wings | No. 4 | 3/4" | 0.06"-0.31" | 0.5"-0.75" | 0.54" | 0.165" | No. 3 | 12-24 | __ | Fully Threaded | __ | 50 | 000000000 | 00000 |
| 2 1/4" | Cutting Wings | No. 4 | 1/2" | 0.13"-0.25" | 0.75"-1.375" | 0.438" | 0.16" | No. 3 | 12-24 | __ | Fully Threaded | __ | 10 | 000000000 | 00000 |
| 2 3/4" | Cutting Wings | No. 4 | 1/2" | 0.13"-0.25" | 0.75"-1.625" | 0.438" | 0.16" | No. 3 | 12-24 | __ | Fully Threaded | __ | 10 | 000000000 | 00000 |
| 3 5/8" | __ | No. 2 | 1 3/4" | 0.04"-0.15" | 0.75"-1.625" | 0.415" | 0.16" | No. 3 | __ | 14 | Fully Threaded | __ | 25 | 000000000 | 00000 |
1/4" | |||||||||||||||
| 3" | Cutting Wings | No. 4 | 1/2" | 0.13"-0.25" | 0.75"-2" | 0.507" | 0.175" | No. 3 | 1/4"-20 | __ | Fully Threaded | __ | 25 | 000000000 | 00000 |
| 4" | Cutting Wings | No. 4 | 7/8" | 0.06"-0.31" | 0.75"-2.875" | 0.485" | 0.185" | No. 3 | 1/4"-20 | __ | Partially Threaded | 2 3/16" | 10 | 000000000 | 0000 |
Torx Drilling Screws for Joining Wood to Metal
A Torx drive has more points of contact than a Phillips drive, allowing you to apply extra force with less slippage or damage to the recess. These screws speed installation by drilling, tapping, and fastening wood and metal in a single operation. Made from zinc-plated steel, they resist corrosion in wet environments. Length is measured from the top of the head.
For technical drawings and 3-D models, click on a part number.