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Drive Style Drive Style | Show |
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Drive Style Drive Style | Hide |
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System of Measurement System of Measurement |
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Tip Type Tip Type |
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 | Pointed |
Material Material |
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Head Type Head Type |
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 | Rounded |
Threading Threading |
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 | Fully Threaded |
Tapping Method Tapping Method |
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 | Thread Forming |
Rounded Head Style Rounded Head Style |
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Tapping Screw Type Tapping Screw Type |
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 | A/AB |
Maximum Drilling Thickness Maximum Drilling Thickness |
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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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Shank Cross Section Shank Cross Section |
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Rounded Head Profile Rounded Head Profile |
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Thread Direction Thread Direction |
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About Tapping Screws
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Tri-Wing® Rounded Head Screws for Sheet Metal
These screws require a Tri-Wing® driver for installation and removal. Made from 18-8 stainless steel, they are chemical resistant and may be mildly magnetic. They penetrate 0.025" and thinner sheet metal. Length is measured from under the head.
For technical drawings and 3-D models, click on a part number.
Head | ||||||||
|---|---|---|---|---|---|---|---|---|
| Lg. | Dia. | Ht. | Drive Size | Drill Bit Size | Approximate Threads per Inch | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | ||||||||
No. 6 | ||||||||
| 1/2" | 0.27" | 0.082" | No. 3 | No. 32 | 18 | 50 | 000000000 | 000000 |
| 3/4" | 0.27" | 0.082" | No. 3 | No. 32 | 18 | 50 | 000000000 | 00000 |
| 1" | 0.27" | 0.082" | No. 3 | No. 32 | 18 | 25 | 000000000 | 0000 |
No. 8 | ||||||||
| 1/2" | 0.322" | 0.096" | No. 4 | No. 29 | 15 | 50 | 000000000 | 00000 |
| 3/4" | 0.322" | 0.096" | No. 4 | No. 29 | 15 | 50 | 000000000 | 00000 |
| 1" | 0.322" | 0.096" | No. 4 | No. 29 | 15 | 50 | 000000000 | 00000 |
| 1 1/4" | 0.322" | 0.096" | No. 4 | No. 29 | 15 | 25 | 000000000 | 0000 |
| 1 1/2" | 0.322" | 0.096" | No. 4 | No. 29 | 15 | 25 | 000000000 | 00000 |
No. 10 | ||||||||
| 1/2" | 0.373" | 0.11" | No. 5 | No. 21 | 12 | 50 | 000000000 | 00000 |
| 3/4" | 0.373" | 0.11" | No. 5 | No. 21 | 12 | 25 | 000000000 | 0000 |
| 1" | 0.373" | 0.11" | No. 5 | No. 21 | 12 | 25 | 000000000 | 0000 |