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About Tapping Screws
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Screws for Joining Sheet Metal to Wood
Able to penetrate overlapping sheets, these screws have a secure hold in wood. The hex head allows for a firm grip with a wrench, while a rubber washer provides a watertight seal. They're corrosion-resistant-coated steel to resist corrosion in wet environments and minimize reactions between dissimilar metals. Length is measured from under the washer.
For technical drawings and 3-D models, click on a part number.
Head | ||||||||
|---|---|---|---|---|---|---|---|---|
| Lg. | Wd. | Ht. | Washer OD | Drill Bit Size | Approximate Threads per Inch | Pkg. Qty. | Pkg. | |
Corrosion-Resistant-Coated Steel | ||||||||
No. 9  | ||||||||
| 1" | 0.25" | 0.16" | 0.472" | __ | 15 | 100 | 000000000 | 000000 |
| 1 1/2" | 0.25" | 0.16" | 0.472" | __ | 15 | 50 | 000000000 | 0000 |
| 2" | 0.25" | 0.16" | 0.472" | __ | 15 | 50 | 000000000 | 0000 |
| 2 1/2" | 0.25" | 0.16" | 0.472" | __ | 15 | 50 | 000000000 | 00000 |
| 3" | 0.25" | 0.16" | 0.472" | __ | 15 | 25 | 000000000 | 0000 |
No. 10 | ||||||||
| 1" | 0.25" | 0.169" | 0.45" | No. 21 | 16 | 100 | 000000000 | 0000 |
| 2 1/2" | 0.25" | 0.169" | 0.45" | No. 21 | 12 | 50 | 000000000 | 0000 |
| 3" | 0.25" | 0.169" | 0.45" | No. 21 | 12 | 50 | 000000000 | 0000 |
No. 14 | ||||||||
| 1 1/2" | 0.313" | 0.15" | 0.593" | __ | 10 | 25 | 000000000 | 0000 |