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Torx Rounded Head Screws for Sheet Metal
A Torx drive has more points of contact than Phillips, slotted, and square drives, allowing you to apply extra force with less slippage or damage to the recess. These steel screws are zinc plated to resist corrosion in wet environments. 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. | |
Zinc-Plated Steel | ||||||||
No. 4  | ||||||||
| 1/4" | 0.219" | 0.08" | T10 | No. 44 | 24 | 100 | 000000000 | 000000 |
| 3/8" | 0.219" | 0.08" | T10 | No. 44 | 24 | 100 | 000000000 | 00000 |
| 1/2" | 0.219" | 0.08" | T10 | No. 44 | 24 | 100 | 000000000 | 00000 |
| 5/8" | 0.219" | 0.08" | T10 | No. 44 | 24 | 100 | 000000000 | 00000 |
| 3/4" | 0.219" | 0.08" | T10 | No. 44 | 24 | 50 | 000000000 | 0000 |
No. 6 | ||||||||
| 3/8" | 0.27" | 0.097" | T15 | No. 32 | 18 | 100 | 000000000 | 00000 |
| 1/2" | 0.27" | 0.097" | T15 | No. 32 | 18 | 100 | 000000000 | 00000 |
| 5/8" | 0.27" | 0.097" | T15 | No. 32 | 18 | 50 | 000000000 | 00000 |
| 3/4" | 0.27" | 0.097" | T15 | No. 32 | 18 | 50 | 000000000 | 00000 |
| 7/8" | 0.27" | 0.097" | T15 | No. 32 | 18 | 50 | 000000000 | 00000 |
| 1" | 0.27" | 0.097" | T15 | No. 32 | 18 | 50 | 000000000 | 00000 |
| 1 1/4" | 0.27" | 0.097" | T15 | No. 32 | 18 | 50 | 000000000 | 0000 |
No. 8 | ||||||||
| 1/2" | 0.322" | 0.115" | T20 | No. 29 | 15 | 100 | 000000000 | 00000 |
| 3/4" | 0.322" | 0.115" | T20 | No. 29 | 15 | 50 | 000000000 | 00000 |
| 7/8" | 0.322" | 0.115" | T20 | No. 29 | 15 | 50 | 000000000 | 0000 |
| 1" | 0.322" | 0.115" | T20 | No. 29 | 15 | 50 | 000000000 | 00000 |
| 1 1/4" | 0.322" | 0.115" | T20 | No. 29 | 15 | 50 | 000000000 | 00000 |
| 1 1/2" | 0.322" | 0.115" | T20 | No. 29 | 15 | 50 | 000000000 | 00000 |
No. 10 | ||||||||
| 1/2" | 0.373" | 0.133" | T25 | No. 21 | 12 | 50 | 000000000 | 00000 |
| 5/8" | 0.373" | 0.133" | T25 | No. 21 | 12 | 50 | 000000000 | 00000 |
| 3/4" | 0.373" | 0.133" | T25 | No. 21 | 12 | 50 | 000000000 | 00000 |
| 1" | 0.373" | 0.133" | T25 | No. 21 | 12 | 50 | 000000000 | 00000 |
| 1 1/4" | 0.373" | 0.133" | T25 | No. 21 | 12 | 50 | 000000000 | 00000 |
| 1 1/2" | 0.373" | 0.133" | T25 | No. 21 | 12 | 50 | 000000000 | 00000 |
| 1 3/4" | 0.373" | 0.133" | T25 | No. 21 | 12 | 25 | 000000000 | 0000 |
| 2" | 0.373" | 0.133" | T25 | No. 21 | 12 | 25 | 000000000 | 00000 |
No. 12 | ||||||||
| 1/2" | 0.425" | 0.151" | T27 | 3/16" | 11 | 50 | 000000000 | 00000 |
| 3/4" | 0.425" | 0.151" | T27 | 3/16" | 11 | 50 | 000000000 | 00000 |
| 1" | 0.425" | 0.151" | T27 | 3/16" | 11 | 50 | 000000000 | 00000 |
| 1 1/4" | 0.425" | 0.151" | T27 | 3/16" | 11 | 25 | 000000000 | 00000 |
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 Torx Flat 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. They're beveled under the head for a flush finish in countersunk holes. Made from 18-8 stainless steel, these screws are chemical resistant and may be mildly magnetic. They penetrate 0.025" and thinner sheet metal. Length is measured from the top of 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" | 0.257" | 0.097" | T15 | No. 32 | 18 | 25 | 000000000 | 000000 |
| 5/8" | 0.277" | 0.097" | T15 | No. 32 | 18 | 25 | 000000000 | 00000 |
| 3/4" | 0.257" | 0.097" | T15 | No. 32 | 18 | 25 | 000000000 | 00000 |
| 1" | 0.257" | 0.097" | T15 | No. 32 | 18 | 25 | 000000000 | 00000 |
| 1 1/2" | 0.277" | 0.097" | T15 | No. 32 | 18 | 25 | 000000000 | 00000 |
No. 8 | ||||||||
| 1/2" | 0.307" | 0.112" | T20 | No. 29 | 15 | 25 | 000000000 | 00000 |
| 5/8" | 0.327" | 0.112" | T20 | No. 29 | 15 | 25 | 000000000 | 00000 |
| 3/4" | 0.307" | 0.112" | T20 | No. 29 | 15 | 25 | 000000000 | 00000 |
| 1" | 0.307" | 0.112" | T20 | No. 29 | 15 | 25 | 000000000 | 00000 |
| 1 1/4" | 0.307" | 0.112" | T20 | No. 29 | 15 | 25 | 000000000 | 00000 |
| 1 1/2" | 0.327" | 0.112" | T20 | No. 29 | 15 | 10 | 000000000 | 0000 |
| 1 3/4" | 0.327" | 0.112" | T20 | No. 29 | 15 | 10 | 000000000 | 0000 |
| 2" | 0.327" | 0.112" | T20 | No. 29 | 15 | 10 | 000000000 | 0000 |
No. 10 | ||||||||
| 1/2" | 0.357" | 0.127" | T25 | No. 21 | 12 | 25 | 000000000 | 00000 |
| 3/4" | 0.357" | 0.127" | T25 | No. 21 | 12 | 25 | 000000000 | 00000 |
| 1" | 0.357" | 0.127" | T25 | No. 21 | 12 | 25 | 000000000 | 00000 |
| 1 1/4" | 0.378" | 0.127" | T25 | No. 21 | 12 | 10 | 000000000 | 0000 |
| 1 1/2" | 0.357" | 0.127" | T25 | No. 21 | 12 | 10 | 000000000 | 0000 |
No. 14 | ||||||||
| 5/8" | 0.531" | 0.161" | T30 | No. 4 | 14 | 10 | 000000000 | 0000 |
| 3/4" | 0.531" | 0.161" | T30 | No. 4 | 14 | 10 | 000000000 | 00000 |
| 1" | 0.531" | 0.161" | T30 | No. 4 | 14 | 10 | 000000000 | 00000 |
| 1 1/4" | 0.531" | 0.161" | T30 | No. 4 | 14 | 10 | 000000000 | 00000 |
| 1 1/2" | 0.531" | 0.161" | T30 | No. 4 | 14 | 10 | 000000000 | 00000 |
1/4" | ||||||||
| 3/4" | 0.472" | 0.161" | T30 | 5.5 mm | 10 | 10 | 000000000 | 0000 |
| 1" | 0.472" | 0.161" | T30 | 5.5 mm | 10 | 10 | 000000000 | 00000 |
| 1 1/4" | 0.472" | 0.161" | T30 | 5.5 mm | 10 | 10 | 000000000 | 00000 |
Strip-Resistant Screws for Sheet Metal
Also known as Fastite screws, these offer more thread engagement in 0.028" to 0.063" thick sheets to prevent overtightening and damaging threads. They're made from steel and have a zinc plating to resist corrosion in wet environments. Length is measured from under the head. These screws have a triangular shank and may have a slightly different diameter than standard screws.
For technical drawings and 3-D models, click on a part number.
Head | |||||||
|---|---|---|---|---|---|---|---|
| Lg. | Dia. | Ht. | Drive Size | Drill Bit Size | Pkg. Qty. | Pkg. | |
2-56 | |||||||
| 1/4" | 0.167" | 0.062" | T8 | No. 48 | 25 | 000000000 | 000000 |
| 3/8" | 0.167" | 0.062" | T8 | No. 48 | 25 | 000000000 | 00000 |
4-40 | |||||||
| 1/4" | 0.219" | 0.08" | T10 | No. 44 | 25 | 000000000 | 00000 |
| 3/8" | 0.219" | 0.08" | T10 | No. 44 | 25 | 000000000 | 00000 |
| 3/4" | 0.219" | 0.08" | T10 | No. 44 | 25 | 000000000 | 00000 |
6-32 | |||||||
| 1/4" | 0.27" | 0.097" | T15 | No. 32 | 25 | 000000000 | 00000 |
| 3/8" | 0.27" | 0.097" | T15 | No. 32 | 25 | 000000000 | 00000 |
8-32 | |||||||
| 1/4" | 0.322" | 0.115" | T20 | No. 29 | 25 | 000000000 | 00000 |
| 3/8" | 0.322" | 0.115" | T20 | No. 29 | 25 | 000000000 | 00000 |
| 1/2" | 0.322" | 0.115" | T20 | No. 29 | 25 | 000000000 | 00000 |
| 5/8" | 0.322" | 0.115" | T20 | No. 29 | 25 | 000000000 | 00000 |
10-24 | |||||||
| 3/8" | 0.373" | 0.133" | T25 | No. 21 | 25 | 000000000 | 00000 |
| 1/2" | 0.373" | 0.133" | T25 | No. 21 | 25 | 000000000 | 00000 |
10-32 | |||||||
| 3/8" | 0.373" | 0.133" | T25 | No. 21 | 25 | 000000000 | 00000 |
| 1/2" | 0.373" | 0.133" | T25 | No. 21 | 25 | 000000000 | 00000 |
| 3/4" | 0.373" | 0.133" | T25 | No. 21 | 25 | 000000000 | 00000 |
Head, mm | ||||||||
|---|---|---|---|---|---|---|---|---|
| Lg., mm | Dia. | Ht. | Drive Size | Drill Bit Size | Thread Pitch | Pkg. Qty. | Pkg. | |
M2 | ||||||||
| 6 | 4.2 | 1.8 | T6 | 1.5 mm | 0.4 | 25 | 000000000 | 000000 |
M2.5 | ||||||||
| 6 | 4.9 | 2.3 | T8 | No. 48 | 0.45 | 25 | 000000000 | 00000 |
| 8 | 4.9 | 2.3 | T8 | No. 48 | 0.45 | 25 | 000000000 | 00000 |
M3 | ||||||||
| 4 | 5.6 | 2.6 | T10 | No. 42 | 0.5 | 25 | 000000000 | 00000 |
| 6 | 5.6 | 2.6 | T10 | No. 42 | 0.5 | 25 | 000000000 | 00000 |
| 8 | 5.6 | 2.6 | T10 | No. 42 | 0.5 | 25 | 000000000 | 00000 |
| 10 | 5.6 | 2.6 | T10 | No. 42 | 0.5 | 25 | 000000000 | 00000 |
M4 | ||||||||
| 6 | 8 | 3.3 | T20 | 1/8" | 0.7 | 25 | 000000000 | 00000 |
| 8 | 8 | 3.3 | T20 | 1/8" | 0.7 | 25 | 000000000 | 00000 |
| 10 | 8 | 3.3 | T20 | 1/8" | 0.7 | 25 | 000000000 | 00000 |
Tamper-Resistant Rounded Head Drilling Screws for 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. They save you time and effort by drilling their own holes and fastening in a single operation. Made from 410 stainless steel, they're strong, wear resistant, and mildly chemical resistant. Not for use with aluminum. Length is measured from under the head.
For technical drawings and 3-D models, click on a part number.
Drill Tip | Head | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Type | Lg. | Max. Drilling Thick. | Dia. | Ht. | Drive Size | Approximate Threads per Inch | For Use In | Pkg. Qty. | Pkg. | |
410 Stainless Steel | |||||||||||
No. 8 | |||||||||||
| 1/2" | No. 2 | 3/16" | 0.098" | 0.322" | 0.115" | T20 | 18 | Steel, Stainless Steel, Sheet Metal | 25 | 000000000 | 00000 |
| 3/4" | No. 2 | 3/16" | 0.098" | 0.322" | 0.115" | T20 | 18 | Steel, Stainless Steel, Sheet Metal | 25 | 000000000 | 0000 |
| 1" | No. 2 | 3/16" | 0.098" | 0.322" | 0.115" | T20 | 18 | Steel, Stainless Steel, Sheet Metal | 10 | 000000000 | 0000 |
| 1 1/4" | No. 2 | 3/16" | 0.098" | 0.322" | 0.115" | T20 | 18 | Steel, Stainless Steel, Sheet Metal | 10 | 000000000 | 0000 |
| 1 1/2" | No. 2 | 3/16" | 0.098" | 0.322" | 0.115" | T20 | 18 | Steel, Stainless Steel, Sheet Metal | 10 | 000000000 | 0000 |
No. 10 | |||||||||||
| 1/2" | No. 2 | 13/64" | 0.106" | 0.373" | 0.133" | T25 | 16 | Steel, Stainless Steel, Sheet Metal | 10 | 000000000 | 0000 |
| 3/4" | No. 2 | 13/64" | 0.106" | 0.373" | 0.133" | T25 | 16 | Steel, Stainless Steel, Sheet Metal | 10 | 000000000 | 0000 |
| 1" | No. 2 | 13/64" | 0.106" | 0.373" | 0.133" | T25 | 16 | Steel, Stainless Steel, Sheet Metal | 10 | 000000000 | 0000 |
| 1 1/4" | No. 2 | 13/64" | 0.106" | 0.373" | 0.133" | T25 | 16 | Steel, Stainless Steel, Sheet Metal | 10 | 000000000 | 0000 |
| 1 1/2" | No. 2 | 13/64" | 0.106" | 0.373" | 0.133" | T25 | 16 | Steel, Stainless Steel, Sheet Metal | 10 | 000000000 | 0000 |
No. 12 | |||||||||||
| 1" | No. 3 | 9/32" | 0.187" | 0.425" | 0.156" | T27 | 14 | Steel, Stainless Steel, Sheet Metal | 10 | 000000000 | 0000 |
| 1 1/2" | No. 3 | 9/32" | 0.187" | 0.425" | 0.156" | T27 | 14 | Steel, Stainless Steel, Sheet Metal | 10 | 000000000 | 0000 |
| 2" | No. 3 | 9/32" | 0.187" | 0.425" | 0.156" | T27 | 14 | Steel, Stainless Steel, Sheet Metal | 10 | 000000000 | 0000 |
No. 14 | |||||||||||
| 1" | No. 3 | 11/32" | 0.21" | 0.492" | 0.175" | T30 | 14 | Steel, Stainless Steel, Sheet Metal | 10 | 000000000 | 0000 |
| 1 1/2" | No. 3 | 11/32" | 0.21" | 0.492" | 0.175" | T30 | 14 | Steel, Stainless Steel, Sheet Metal | 10 | 000000000 | 0000 |
| 2" | No. 3 | 11/32" | 0.21" | 0.492" | 0.175" | T30 | 14 | Steel, Stainless Steel, Sheet Metal | 10 | 000000000 | 00000 |
Tamper-Resistant Flat Head Drilling Screws for 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. All are beveled under the head for use in countersunk holes. They save you time and effort by drilling their own holes and fastening in a single operation. Made from steel, they have a zinc plating to 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.
Drill Tip | Head | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Type | Lg. | Max. Drilling Thick. | Dia. | Ht. | Drive Size | Approximate Threads per Inch | For Use In | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel | |||||||||||
No. 8 | |||||||||||
| 1/2" | No. 2 | 3/16" | 0.098" | 0.312" | 0.1" | T15 | 18 | Steel, Sheet Metal | 50 | 000000000 | 000000 |
| 3/4" | No. 2 | 3/16" | 0.098" | 0.312" | 0.1" | T15 | 18 | Steel, Sheet Metal | 50 | 000000000 | 00000 |
| 1" | No. 2 | 3/16" | 0.098" | 0.312" | 0.1" | T15 | 18 | Steel, Sheet Metal | 50 | 000000000 | 00000 |
| 1 1/4" | No. 2 | 3/16" | 0.098" | 0.312" | 0.1" | T15 | 18 | Steel, Sheet Metal | 50 | 000000000 | 00000 |
| 1 1/2" | No. 2 | 3/16" | 0.098" | 0.312" | 0.1" | T15 | 18 | Steel, Sheet Metal | 50 | 000000000 | 00000 |
No. 10 | |||||||||||
| 1/2" | No. 2 | 3/16" | 0.098" | 0.362" | 0.081" | T20 | 16 | Steel, Sheet Metal | 50 | 000000000 | 00000 |
| 3/4" | No. 3 | 1/4" | 0.15" | 0.362" | 0.116" | T20 | 16 | Steel, Sheet Metal | 50 | 000000000 | 00000 |
| 1" | No. 3 | 1/4" | 0.15" | 0.362" | 0.116" | T20 | 16 | Steel, Sheet Metal | 50 | 000000000 | 00000 |
| 1 1/2" | No. 3 | 1/4" | 0.15" | 0.362" | 0.116" | T20 | 16 | Steel, Sheet Metal | 50 | 000000000 | 00000 |
| 2" | No. 3 | 1/4" | 0.15" | 0.362" | 0.116" | T20 | 16 | Steel, Sheet Metal | 25 | 000000000 | 00000 |
No. 14 | |||||||||||
| 1" | No. 3 | 11/32" | 0.21" | 0.477" | 0.153" | T27 | 14 | Steel, Sheet Metal | 25 | 000000000 | 00000 |
| 1 1/2" | No. 3 | 11/32" | 0.21" | 0.477" | 0.153" | T27 | 14 | Steel, Sheet Metal | 25 | 000000000 | 00000 |
| 2" | No. 3 | 11/32" | 0.21" | 0.477" | 0.153" | T27 | 14 | Steel, Sheet Metal | 25 | 000000000 | 00000 |
Strip-Resistant Drilling Screws for Metal
Serrations under the head act as a brake to prevent overtightening and damaging threads. The flange reduces the risk of crushing thin metal. They save you time and effort by drilling their own holes and fastening in a single operation. A hex head provides a larger gripping area for installation with a wrench or socket driver. Length is measured from under the flange. Head height includes the flange.
External Hex/Torx drive screws give you the choice to install with a wrench or a Torx driver.
Zinc-plated steel screws resist corrosion in wet environments.
For technical drawings and 3-D models, click on a part number.
Drill Tip | Head | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Type | Lg. | Max. Drilling Thick. | Wd. | Ht. | Flange Dia. | Drive Size | Approximate Threads per Inch | For Use In | Pkg. Qty. | Pkg. | |
External Hex/Torx—Zinc-Plated Steel | ||||||||||||
No. 8 | ||||||||||||
| 1/2" | No. 2 | 3/16" | 0.098" | 0.25" | 0.197" | 0.37" | T20 | 18 | Steel, Sheet Metal | 50 | 000000000 | 000000 |
| 3/4" | No. 2 | 3/16" | 0.098" | 0.25" | 0.197" | 0.37" | T20 | 18 | Steel, Sheet Metal | 25 | 000000000 | 0000 |
No. 10 | ||||||||||||
| 3/4" | No. 3 | 1/4" | 0.15" | 0.313" | 0.216" | 0.445" | T25 | 16 | Steel, Sheet Metal | 50 | 000000000 | 0000 |
| 1" | No. 3 | 1/4" | 0.15" | 0.313" | 0.216" | 0.445" | T25 | 16 | Steel, Sheet Metal | 25 | 000000000 | 0000 |
No. 12 | ||||||||||||
| 3/4" | No. 3 | 9/32" | 0.187" | 0.313" | 0.261" | 0.445" | T27 | 14 | Steel, Sheet Metal | 50 | 000000000 | 00000 |
| 1" | No. 3 | 9/32" | 0.187" | 0.313" | 0.261" | 0.445" | T27 | 14 | Steel, Sheet Metal | 25 | 000000000 | 00000 |
1/4" | ||||||||||||
| 3/4" | No. 3 | 5/16" | 0.21" | 0.375" | 0.303" | 0.55" | T30 | 14 | Steel, Sheet Metal | 25 | 000000000 | 00000 |
| 1" | No. 3 | 5/16" | 0.21" | 0.375" | 0.303" | 0.55" | T30 | 14 | Steel, Sheet Metal | 25 | 000000000 | 00000 |
Torx Flat Head Thread-Cutting Screws for 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 are beveled under the head for use in countersunk holes. They cut threads in drilled holes as they’re turned, so they require less driving torque and cause less stress on your material than thread forming screws. Length is measured from the top of the head.
Screws with a black-phosphate finish provide mild corrosion resistance in dry environments.
Screws with a zinc-plated finish resist corrosion in wet environments.
For technical drawings and 3-D models, click on a part number.
Head | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Dia. | Ht. | Drive Size | Drill Bit Size | Threading | Minimum Thread Lg. | Tapping Screw Type | For Use In | Pkg. Qty. | Pkg. | |
Black-Phosphate Steel | |||||||||||
10-24 | |||||||||||
| 1 1/4" | 0.362" | 0.116" | T20 | No. 17 | Fully Threaded | __ | F | Aluminum, Brass, Cast Iron, Sheet Metal | 50 | 000000000 | 000000 |
1/4"-20 | |||||||||||
| 1/2" | 0.477" | 0.153" | T30 | No. 1 | Fully Threaded | __ | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | 000000000 | 00000 |
| 3/4" | 0.477" | 0.153" | T30 | No. 1 | Fully Threaded | __ | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | 000000000 | 00000 |
| 1" | 0.477" | 0.153" | T30 | No. 1 | Fully Threaded | __ | F | Aluminum, Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 00000 |
| 1 1/4" | 0.477" | 0.153" | T30 | No. 1 | Fully Threaded | __ | F | Aluminum, Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 00000 |
| 1 1/2" | 0.477" | 0.153" | T30 | No. 1 | Fully Threaded | __ | F | Aluminum, Brass, Cast Iron, Sheet Metal | 50 | 000000000 | 00000 |
| 1 3/4" | 0.477" | 0.153" | T30 | No. 1 | Fully Threaded | __ | F | Aluminum, Brass, Cast Iron, Sheet Metal | 50 | 000000000 | 00000 |
| 2" | 0.477" | 0.153" | T30 | No. 1 | Fully Threaded | __ | F | Aluminum, Brass, Cast Iron, Sheet Metal | 50 | 000000000 | 00000 |
| 2 1/4" | 0.477" | 0.153" | T30 | No. 1 | Fully Threaded | __ | F | Aluminum, Brass, Cast Iron, Sheet Metal | 50 | 000000000 | 00000 |
| 2 1/2" | 0.477" | 0.153" | T30 | No. 1 | Fully Threaded | __ | F | Aluminum, Brass, Cast Iron, Sheet Metal | 50 | 000000000 | 00000 |
| 2 3/4" | 0.477" | 0.153" | T30 | No. 1 | Fully Threaded | __ | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | 000000000 | 00000 |
| 3" | 0.477" | 0.153" | T30 | No. 1 | Fully Threaded | __ | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | 000000000 | 00000 |
| 3 1/2" | 0.477" | 0.153" | T30 | No. 1 | Fully Threaded | __ | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | 000000000 | 00000 |
| 4" | 0.477" | 0.153" | T30 | No. 1 | Fully Threaded | __ | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | 000000000 | 00000 |
| 4 1/2" | 0.477" | 0.153" | T30 | No. 1 | Fully Threaded | __ | F | Aluminum, Brass, Cast Iron, Sheet Metal | 1 | 000000000 | 0000 |
| 5" | 0.477" | 0.153" | T30 | No. 1 | Fully Threaded | __ | F | Aluminum, Brass, Cast Iron, Sheet Metal | 1 | 000000000 | 0000 |
| 6" | 0.477" | 0.153" | T30 | No. 1 | Partially Threaded | 4" | F | Aluminum, Brass, Cast Iron, Sheet Metal | 1 | 000000000 | 0000 |
5/16"-18 | |||||||||||
| 3/4" | 0.597" | 0.191" | T40 | L | Fully Threaded | __ | F | Aluminum, Brass, Cast Iron, Sheet Metal | 10 | 000000000 | 00000 |
| 1" | 0.597" | 0.191" | T40 | L | Fully Threaded | __ | F | Aluminum, Brass, Cast Iron, Sheet Metal | 50 | 000000000 | 00000 |
| 1 1/4" | 0.597" | 0.191" | T40 | L | Fully Threaded | __ | F | Aluminum, Brass, Cast Iron, Sheet Metal | 50 | 000000000 | 00000 |
| 1 1/2" | 0.597" | 0.191" | T40 | L | Fully Threaded | __ | F | Aluminum, Brass, Cast Iron, Sheet Metal | 50 | 000000000 | 00000 |
| 1 3/4" | 0.597" | 0.191" | T40 | L | Fully Threaded | __ | F | Aluminum, Brass, Cast Iron, Sheet Metal | 50 | 000000000 | 00000 |
| 2" | 0.597" | 0.191" | T40 | L | Fully Threaded | __ | F | Aluminum, Brass, Cast Iron, Sheet Metal | 50 | 000000000 | 00000 |
| 2 1/4" | 0.597" | 0.191" | T40 | L | Fully Threaded | __ | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | 000000000 | 00000 |
| 2 1/2" | 0.597" | 0.191" | T40 | L | Fully Threaded | __ | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | 000000000 | 00000 |
| 3" | 0.597" | 0.191" | T40 | L | Fully Threaded | __ | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | 000000000 | 00000 |
| 3 1/2" | 0.597" | 0.191" | T40 | L | Fully Threaded | __ | F | Aluminum, Brass, Cast Iron, Sheet Metal | 5 | 000000000 | 00000 |
| 4" | 0.597" | 0.191" | T40 | L | Fully Threaded | __ | F | Aluminum, Brass, Cast Iron, Sheet Metal | 1 | 000000000 | 0000 |
| 5" | 0.597" | 0.191" | T40 | L | Fully Threaded | __ | F | Aluminum, Brass, Cast Iron, Sheet Metal | 1 | 000000000 | 0000 |
| 6" | 0.597" | 0.191" | T40 | L | Partially Threaded | 4" | F | Aluminum, Brass, Cast Iron, Sheet Metal | 1 | 000000000 | 0000 |
3/8"-16 | |||||||||||
| 1" | 0.717" | 0.23" | T40 | T | Fully Threaded | __ | F | Aluminum, Brass, Cast Iron, Sheet Metal | 5 | 000000000 | 00000 |
| 1 1/4" | 0.717" | 0.23" | T40 | T | Fully Threaded | __ | F | Aluminum, Brass, Cast Iron, Sheet Metal | 5 | 000000000 | 00000 |
| 1 1/2" | 0.717" | 0.23" | T40 | T | Fully Threaded | __ | F | Aluminum, Brass, Cast Iron, Sheet Metal | 10 | 000000000 | 00000 |
| 2" | 0.717" | 0.23" | T40 | T | Fully Threaded | __ | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | 000000000 | 00000 |
| 2 1/2" | 0.717" | 0.23" | T40 | T | Fully Threaded | __ | F | Aluminum, Brass, Cast Iron, Sheet Metal | 1 | 000000000 | 0000 |
| 3" | 0.717" | 0.23" | T40 | T | Fully Threaded | __ | F | Aluminum, Brass, Cast Iron, Sheet Metal | 1 | 000000000 | 0000 |
Zinc-Plated Steel | |||||||||||
6-32 | |||||||||||
| 3/8" | 0.262" | 0.083" | T10 | 31 | Fully Threaded | __ | F | Aluminum, Brass, Cast Iron, Sheet Metal | 50 | 000000000 | 00000 |
| 1/2" | 0.262" | 0.083" | T10 | 31 | Fully Threaded | __ | F | Aluminum, Brass, Cast Iron, Sheet Metal | 50 | 000000000 | 00000 |
| 3/4" | 0.262" | 0.083" | T10 | 31 | Fully Threaded | __ | F | Aluminum, Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 00000 |
8-32 | |||||||||||
| 1/2" | 0.312" | 0.1" | T15 | 26 | Fully Threaded | __ | F | Aluminum, Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 00000 |
| 3/4" | 0.312" | 0.1" | T15 | 26 | Fully Threaded | __ | F | Aluminum, Brass, Cast Iron, Sheet Metal | 50 | 000000000 | 00000 |
10-24 | |||||||||||
| 5/8" | 0.362" | 0.116" | T20 | No. 17 | Fully Threaded | __ | F | Aluminum, Brass, Cast Iron, Sheet Metal | 50 | 000000000 | 00000 |
| 3/4" | 0.362" | 0.116" | T20 | No. 17 | Fully Threaded | __ | F | Aluminum, Brass, Cast Iron, Sheet Metal | 50 | 000000000 | 00000 |
| 1" | 0.362" | 0.116" | T20 | No. 17 | Fully Threaded | __ | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | 000000000 | 00000 |
12-24 | |||||||||||
| 1" | 0.412" | 0.132" | T25 | No. 8 | Fully Threaded | __ | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | 000000000 | 00000 |
1/4"-20 | |||||||||||
| 1/2" | 0.477" | 0.153" | T27 | No. 1 | Fully Threaded | __ | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | 000000000 | 00000 |
| 5/8" | 0.477" | 0.153" | T27 | No. 1 | Fully Threaded | __ | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | 000000000 | 00000 |
| 3/4" | 0.477" | 0.153" | T27 | No. 1 | Fully Threaded | __ | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | 000000000 | 00000 |
| 1" | 0.477" | 0.153" | T27 | No. 1 | Fully Threaded | __ | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | 000000000 | 00000 |
| 1 1/4" | 0.477" | 0.153" | T27 | No. 1 | Fully Threaded | __ | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | 000000000 | 00000 |
| 1 1/2" | 0.477" | 0.153" | T27 | No. 1 | Fully Threaded | __ | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | 000000000 | 00000 |
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.
Thread-Forming Screws for Joining Wood to Metal
Thread-forming screws press threads into drilled holes for a tight vibration-resistant assembly. All are beveled under the head for use in countersunk holes. A Torx drive allows you to apply extra force with less slippage or damage to the recess. They're black-phosphate steel to resist corrosion in dry environments. Length is measured from the top of the head.
For technical drawings and 3-D models, click on a part number.
Head | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Lg. | Dia. | Ht. | Drive Size | Drill Bit Size | Threading | Min. Thread Lg. | Pkg. Qty. | Pkg. | |
Black-Phosphate Steel | |||||||||
1/4"-20 | |||||||||
| 1" | 0.479" | 0.153" | T30 | No. 3 | Fully Threaded | __ | 50 | 000000000 | 000000 |
| 1 1/4" | 0.479" | 0.153" | T30 | No. 3 | Fully Threaded | __ | 50 | 000000000 | 00000 |
| 1 1/2" | 0.479" | 0.153" | T30 | No. 3 | Fully Threaded | __ | 50 | 000000000 | 00000 |
| 1 3/4" | 0.479" | 0.153" | T30 | No. 3 | Fully Threaded | __ | 50 | 000000000 | 00000 |
| 2" | 0.479" | 0.153" | T30 | No. 3 | Fully Threaded | __ | 50 | 000000000 | 00000 |
| 2 1/4" | 0.479" | 0.153" | T30 | No. 3 | Partially Threaded | 1 1/2" | 50 | 000000000 | 00000 |
| 2 1/2" | 0.479" | 0.153" | T30 | No. 3 | Partially Threaded | 1 1/2" | 25 | 000000000 | 00000 |
| 3" | 0.479" | 0.153" | T30 | No. 3 | Partially Threaded | 1 1/2" | 25 | 000000000 | 00000 |
| 3 1/2" | 0.479" | 0.153" | T30 | No. 3 | Partially Threaded | 1 1/2" | 10 | 000000000 | 00000 |
| 4" | 0.479" | 0.153" | T30 | No. 3 | Partially Threaded | 1 1/2" | 10 | 000000000 | 00000 |
5/16"-18 | |||||||||
| 1 3/4" | 0.6" | 0.191" | T40 | H | Fully Threaded | __ | 25 | 000000000 | 00000 |
| 2" | 0.6" | 0.191" | T40 | H | Fully Threaded | __ | 25 | 000000000 | 00000 |
| 2 1/4" | 0.6" | 0.191" | T40 | H | Partially Threaded | 1 1/2" | 10 | 000000000 | 0000 |
| 2 1/2" | 0.6" | 0.191" | T40 | H | Partially Threaded | 1 1/2" | 25 | 000000000 | 00000 |
| 3" | 0.6" | 0.191" | T40 | H | Partially Threaded | 1 1/2" | 10 | 000000000 | 00000 |