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About Tapping Screws
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Compare drilling, pointed, thread-forming, and thread-cutting tips to find the best choice for your material.
Tamper-Resistant Torx Rounded Head Screws for Sheet Metal
A tamper-resistant Torx driver is required for installation and removal. Also known as pin-in-Torx, these screws allow you to apply extra force with less slippage or damage to the recess. 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.
Head | ||||||||
|---|---|---|---|---|---|---|---|---|
| Lg. | Dia. | Ht. | Drive Size | Drill Bit Size | Approximate Threads per Inch | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel  | ||||||||
No. 4 | ||||||||
| 3/8" | 0.206" | 0.055" | T8 | 3/32" | 24 | 25 | 000000000 | 000000 |
| 1/2" | 0.206" | 0.055" | T8 | 3/32" | 24 | 25 | 000000000 | 00000 |
| 5/8" | 0.206" | 0.055" | T8 | 3/32" | 24 | 25 | 000000000 | 00000 |
| 3/4" | 0.206" | 0.055" | T8 | 3/32" | 24 | 25 | 000000000 | 00000 |
No. 6 | ||||||||
| 3/8" | 0.255" | 0.07" | T10 | 7/64" | 20 | 25 | 000000000 | 00000 |
| 1/2" | 0.262" | 0.073" | T10 | No. 32 | 18 | 25 | 000000000 | 00000 |
| 5/8" | 0.255" | 0.07" | T10 | 7/64" | 20 | 25 | 000000000 | 00000 |
| 3/4" | 0.262" | 0.073" | T10 | No. 32 | 18 | 25 | 000000000 | 00000 |
| 1" | 0.262" | 0.073" | T10 | No. 32 | 18 | 25 | 000000000 | 00000 |
| 1 1/4" | 0.255" | 0.07" | T10 | 7/64" | 20 | 25 | 000000000 | 00000 |
| 1 1/2" | 0.262" | 0.073" | T10 | No. 32 | 18 | 25 | 000000000 | 00000 |
No. 8 | ||||||||
| 3/8" | 0.307" | 0.085" | T15 | 1/8" | 18 | 25 | 000000000 | 00000 |
| 1/2" | 0.312" | 0.087" | T15 | No. 29 | 15 | 25 | 000000000 | 00000 |
| 5/8" | 0.307" | 0.085" | T15 | 1/8" | 18 | 25 | 000000000 | 00000 |
| 3/4" | 0.312" | 0.087" | T15 | No. 29 | 15 | 25 | 000000000 | 00000 |
| 1" | 0.312" | 0.087" | T15 | No. 29 | 15 | 25 | 000000000 | 00000 |
| 1 1/4" | 0.312" | 0.087" | T15 | No. 29 | 15 | 25 | 000000000 | 00000 |
| 1 1/2" | 0.312" | 0.087" | T15 | No. 29 | 15 | 25 | 000000000 | 00000 |
| 2" | 0.307" | 0.085" | T15 | 1/8" | 18 | 25 | 000000000 | 00000 |
No. 10 | ||||||||
| 1/2" | 0.361" | 0.101" | T25 | No. 21 | 12 | 25 | 000000000 | 00000 |
| 5/8" | 0.355" | 0.1" | T25 | 9/64" | 16 | 25 | 000000000 | 00000 |
| 3/4" | 0.361" | 0.101" | T25 | No. 21 | 12 | 25 | 000000000 | 00000 |
| 1" | 0.361" | 0.101" | T25 | No. 21 | 12 | 25 | 000000000 | 00000 |
| 1 1/4" | 0.361" | 0.101" | T25 | No. 21 | 12 | 25 | 000000000 | 00000 |
| 1 1/2" | 0.361" | 0.101" | T25 | No. 21 | 12 | 10 | 000000000 | 00000 |
| 2" | 0.355" | 0.1" | T25 | 9/64" | 16 | 10 | 000000000 | 00000 |
No. 12 | ||||||||
| 3/4" | 0.41" | 0.11" | T25 | 5/32" | 14 | 10 | 000000000 | 0000 |
| 1" | 0.41" | 0.11" | T25 | 5/32" | 14 | 10 | 000000000 | 0000 |
| 1 1/4" | 0.41" | 0.11" | T25 | 5/32" | 14 | 10 | 000000000 | 00000 |
| 1 1/2" | 0.41" | 0.11" | T25 | 5/32" | 14 | 10 | 000000000 | 00000 |
No. 14 | ||||||||
| 1/2" | 0.437" | 0.132" | T27 | 5.5 mm | 10 | 10 | 000000000 | 00000 |
| 3/4" | 0.437" | 0.132" | T27 | 5.5 mm | 10 | 10 | 000000000 | 00000 |
| 1" | 0.437" | 0.132" | T27 | 5.5 mm | 10 | 10 | 000000000 | 00000 |
| 1 1/2" | 0.437" | 0.132" | T27 | 5.5 mm | 10 | 10 | 000000000 | 00000 |
| 2" | 0.43" | 0.13" | T27 | 3/16" | 14 | 10 | 000000000 | 00000 |
Tamper-Resistant Hex Drive Rounded Head Screws for Sheet Metal
Also known as pin-in-hex, install and remove these screws with a tamper-resistant hex driver. 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.
Head | ||||||||
|---|---|---|---|---|---|---|---|---|
| Lg. | Dia. | Ht. | Drive Size | Drill Bit Size | Approximate Threads per Inch | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | ||||||||
No. 6 | ||||||||
| 1/2" | 0.282" | 0.073" | 1/8" | No. 32 | 18 | 25 | 000000000 | 000000 |
| 3/4" | 0.282" | 0.073" | 1/8" | No. 32 | 18 | 25 | 000000000 | 00000 |
| 1" | 0.282" | 0.073" | 1/8" | No. 32 | 18 | 25 | 000000000 | 00000 |
No. 8 | ||||||||
| 1/2" | 0.312" | 0.087" | 5/32" | No. 29 | 15 | 25 | 000000000 | 00000 |
| 5/8" | 0.312" | 0.087" | 5/32" | No. 29 | 15 | 25 | 000000000 | 00000 |
| 3/4" | 0.312" | 0.087" | 5/32" | No. 29 | 15 | 25 | 000000000 | 0000 |
| 1" | 0.312" | 0.087" | 5/32" | No. 29 | 15 | 25 | 000000000 | 0000 |
| 1 1/4" | 0.312" | 0.087" | 5/32" | No. 29 | 15 | 25 | 000000000 | 00000 |
| 1 1/2" | 0.312" | 0.087" | 5/32" | No. 29 | 15 | 25 | 000000000 | 00000 |
No. 10 | ||||||||
| 1/2" | 0.361" | 0.101" | 5/32" | No. 21 | 12 | 25 | 000000000 | 0000 |
| 3/4" | 0.361" | 0.101" | 5/32" | No. 21 | 12 | 25 | 000000000 | 00000 |
| 1" | 0.361" | 0.101" | 5/32" | No. 21 | 12 | 25 | 000000000 | 00000 |
| 1 1/4" | 0.361" | 0.101" | 5/32" | No. 21 | 12 | 25 | 000000000 | 00000 |
| 1 1/2" | 0.361" | 0.101" | 5/32" | No. 21 | 12 | 25 | 000000000 | 00000 |
| 2" | 0.361" | 0.101" | 5/32" | No. 21 | 12 | 25 | 000000000 | 00000 |
No. 14 | ||||||||
| 3/4" | 0.437" | 0.132" | 5/32" | 5.5 mm | 10 | 25 | 000000000 | 00000 |
| 1" | 0.437" | 0.132" | 5/32" | 5.5 mm | 10 | 25 | 000000000 | 00000 |
| 1 1/2" | 0.437" | 0.132" | 5/32" | 5.5 mm | 10 | 10 | 000000000 | 0000 |