Rounded Head Style Rounded Head Style | Show |
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Drive Style Drive Style |
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Tamper- Resistant Torx | Tamper- Resistant Hex |
System of Measurement System of Measurement |
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Head Type Head Type |
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![]() | Rounded |
Tip Type Tip Type |
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![]() | Pointed |
Material Material |
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For Use In For Use In |
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Tapping Screw Type Tapping Screw Type |
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![]() | A/AB |
Threading Threading |
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![]() | Fully Threaded |
Drill Bit Decimal Size Equivalent Drill Bit DecimalSize Equivalent |
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Tapping Method Tapping Method |
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![]() | Thread Forming |
Rounded Head Profile Rounded Head Profile |
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Maximum Drilling Thickness Maximum Drilling Thickness |
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Shank Cross Section Shank Cross Section |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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About Tapping Screws
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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.
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. 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.
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" | 0.282" | 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 | 00000 |
1" | 0.312" | 0.087" | 5/32" | No. 29 | 15 | 25 | 000000000 | 00000 |
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 | 00000 |
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 |