Drive Style Drive Style |
|---|
 |  |  |
| Tamper- Resistant Torx | Drilled Spanner | Tamper- Resistant Hex |
 |  | |
| One Way | Tri- Wing® |
Head Diameter Head Diameter |
|---|
Threading Threading |
|---|
 | Fully Threaded |
 | Partially Threaded |
Head Height Head Height |
|---|
About Tapping Screws
More
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 | 0000 |
| 1/2" | 0.262" | 0.073" | T10 | No. 32 | 18 | 25 | 000000000 | 0000 |
| 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 | 0000 |
| 1/2" | 0.312" | 0.087" | T15 | No. 29 | 15 | 25 | 000000000 | 0000 |
| 5/8" | 0.307" | 0.085" | T15 | 1/8" | 18 | 25 | 000000000 | 0000 |
| 3/4" | 0.312" | 0.087" | T15 | No. 29 | 15 | 25 | 000000000 | 0000 |
| 1" | 0.312" | 0.087" | T15 | No. 29 | 15 | 25 | 000000000 | 0000 |
| 1 1/4" | 0.312" | 0.087" | T15 | No. 29 | 15 | 25 | 000000000 | 0000 |
| 1 1/2" | 0.312" | 0.087" | T15 | No. 29 | 15 | 25 | 000000000 | 0000 |
| 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 | 0000 |
| 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 | 0000 |
| 1" | 0.361" | 0.101" | T25 | No. 21 | 12 | 25 | 000000000 | 0000 |
| 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 | 0000 |
| 2" | 0.355" | 0.1" | T25 | 9/64" | 16 | 10 | 000000000 | 0000 |
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 | 0000 |
| 1 1/2" | 0.41" | 0.11" | T25 | 5/32" | 14 | 10 | 000000000 | 0000 |
No. 14 | ||||||||
| 1/2" | 0.437" | 0.132" | T27 | 5.5 mm | 10 | 10 | 000000000 | 0000 |
| 3/4" | 0.437" | 0.132" | T27 | 5.5 mm | 10 | 10 | 000000000 | 0000 |
| 1" | 0.437" | 0.132" | T27 | 5.5 mm | 10 | 10 | 000000000 | 0000 |
| 1 1/2" | 0.437" | 0.132" | T27 | 5.5 mm | 10 | 10 | 000000000 | 0000 |
| 2" | 0.43" | 0.13" | T27 | 3/16" | 14 | 10 | 000000000 | 00000 |
One-Way Rounded Head Screws for Sheet Metal
The S-shaped drive can be installed with a standard slotted driver, but requires a special tool for removal. 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 under the head.
For technical drawings and 3-D models, click on a part number.
Head | |||||||
|---|---|---|---|---|---|---|---|
| Lg. | Dia. | Ht. | Drill Bit Size | Approximate Threads per Inch | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||||
No. 6 | |||||||
| 1/2" | 0.26" | 0.103" | No. 32 | 18 | 100 | 000000000 | 000000 |
| 3/4" | 0.26" | 0.103" | No. 32 | 18 | 100 | 000000000 | 00000 |
| 1" | 0.26" | 0.103" | No. 32 | 18 | 50 | 000000000 | 0000 |
No. 8 | |||||||
| 1/2" | 0.309" | 0.12" | No. 29 | 15 | 50 | 000000000 | 0000 |
| 3/4" | 0.309" | 0.12" | No. 29 | 15 | 50 | 000000000 | 0000 |
| 1" | 0.309" | 0.12" | No. 29 | 15 | 50 | 000000000 | 0000 |
| 1 1/4" | 0.309" | 0.12" | No. 29 | 15 | 50 | 000000000 | 00000 |
| 1 1/2" | 0.309" | 0.12" | No. 29 | 15 | 50 | 000000000 | 0000 |
No. 10 | |||||||
| 1/2" | 0.359" | 0.137" | No. 21 | 12 | 50 | 000000000 | 0000 |
| 3/4" | 0.359" | 0.137" | No. 21 | 12 | 50 | 000000000 | 0000 |
| 1" | 0.359" | 0.137" | No. 21 | 12 | 50 | 000000000 | 00000 |
| 1 1/2" | 0.359" | 0.137" | No. 21 | 12 | 50 | 000000000 | 00000 |
| 2" | 0.359" | 0.137" | No. 21 | 12 | 25 | 000000000 | 0000 |
No. 12 | |||||||
| 1/2" | 0.425" | 1/8" | 3/16" | 11 | 50 | 000000000 | 00000 |
| 3/4" | 0.425" | 1/8" | 3/16" | 11 | 25 | 000000000 | 0000 |
| 1" | 0.425" | 1/8" | 3/16" | 11 | 25 | 000000000 | 0000 |
| 1 1/2" | 0.425" | 1/8" | 3/16" | 11 | 25 | 000000000 | 00000 |
| 2" | 0.425" | 1/8" | 3/16" | 11 | 25 | 000000000 | 00000 |
No. 14 | |||||||
| 1/2" | 0.472" | 0.175" | 5.5 mm | 10 | 50 | 000000000 | 0000 |
| 3/4" | 0.472" | 0.175" | 5.5 mm | 10 | 25 | 000000000 | 0000 |
| 1" | 0.472" | 0.175" | 5.5 mm | 10 | 25 | 000000000 | 0000 |
| 1 1/2" | 0.472" | 0.175" | 5.5 mm | 10 | 25 | 000000000 | 00000 |
| 2" | 0.472" | 0.175" | 5.5 mm | 10 | 25 | 000000000 | 00000 |
| 3" | 0.472" | 0.175" | 5.5 mm | 10 | 10 | 000000000 | 0000 |
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 | 00000 |
| 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 | 0000 |
| 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 |
Drilled Spanner Rounded Head Screws for Sheet Metal
Install and remove these screws with a tamper-resistant spanner 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" | 0.27" | 0.082" | No. 6 | No. 32 | 18 | 25 | 000000000 | 00000 |
| 3/4" | 0.27" | 0.082" | No. 6 | No. 32 | 18 | 25 | 000000000 | 0000 |
| 1" | 0.27" | 0.082" | No. 6 | No. 32 | 18 | 25 | 000000000 | 0000 |
| 1 1/2" | 0.27" | 0.082" | No. 6 | No. 32 | 18 | 25 | 000000000 | 00000 |
No. 8 | ||||||||
| 3/8" | 0.322" | 0.096" | No. 8 | No. 29 | 15 | 25 | 000000000 | 0000 |
| 1/2" | 0.322" | 0.096" | No. 8 | No. 29 | 15 | 25 | 000000000 | 0000 |
| 3/4" | 0.322" | 0.096" | No. 8 | No. 29 | 15 | 25 | 000000000 | 0000 |
| 1" | 0.322" | 0.096" | No. 8 | No. 29 | 15 | 25 | 000000000 | 0000 |
| 1 1/2" | 0.322" | 0.096" | No. 8 | No. 29 | 15 | 25 | 000000000 | 00000 |
| 2" | 0.322" | 0.096" | No. 8 | No. 29 | 15 | 25 | 000000000 | 00000 |
No. 10 | ||||||||
| 1/2" | 0.373" | 0.11" | No. 10 | No. 21 | 12 | 25 | 000000000 | 0000 |
| 3/4" | 0.373" | 0.11" | No. 10 | No. 21 | 12 | 25 | 000000000 | 0000 |
| 1" | 0.373" | 0.11" | No. 10 | No. 21 | 12 | 25 | 000000000 | 00000 |
| 1 1/4" | 0.373" | 0.11" | No. 10 | No. 21 | 12 | 25 | 000000000 | 00000 |
| 1 1/2" | 0.373" | 0.11" | No. 10 | No. 21 | 12 | 25 | 000000000 | 00000 |
| 2" | 0.373" | 0.11" | No. 10 | No. 21 | 12 | 10 | 000000000 | 0000 |
No. 12 | ||||||||
| 1" | 0.425" | 1/8" | No. 12 | 3/16" | 11 | 25 | 000000000 | 00000 |
| 1 1/2" | 0.425" | 1/8" | No. 12 | 3/16" | 11 | 25 | 000000000 | 00000 |
| 2" | 0.425" | 1/8" | No. 12 | 3/16" | 11 | 10 | 000000000 | 0000 |
No. 14 | ||||||||
| 3/4" | 0.492" | 0.144" | No. 14 | 5.5 mm | 10 | 25 | 000000000 | 00000 |
| 1" | 0.492" | 0.144" | No. 14 | 5.5 mm | 10 | 10 | 000000000 | 0000 |
| 2" | 0.492" | 0.144" | No. 14 | 5.5 mm | 10 | 10 | 000000000 | 0000 |
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 |
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" | 0.277" | 0.097" | T15 | No. 32 | 18 | 25 | 000000000 | 000000 |
| 5/8" | 0.277" | 0.097" | T15 | No. 32 | 18 | 25 | 000000000 | 00000 |
| 3/4" | 0.277" | 0.097" | T15 | No. 32 | 18 | 25 | 000000000 | 00000 |
| 1" | 0.277" | 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" | 0.327" | 0.112" | T20 | No. 29 | 15 | 25 | 000000000 | 00000 |
| 5/8" | 0.327" | 0.112" | T20 | No. 29 | 15 | 25 | 000000000 | 00000 |
| 3/4" | 0.327" | 0.112" | T20 | No. 29 | 15 | 25 | 000000000 | 00000 |
| 1" | 0.327" | 0.112" | T20 | No. 29 | 15 | 25 | 000000000 | 00000 |
| 1 1/4" | 0.327" | 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" | 0.378" | 0.127" | T25 | No. 21 | 12 | 25 | 000000000 | 00000 |
| 3/4" | 0.378" | 0.127" | T25 | No. 21 | 12 | 25 | 000000000 | 00000 |
| 1" | 0.378" | 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" | 0.378" | 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 | 0000 |
| 1" | 0.531" | 0.161" | T30 | No. 4 | 14 | 10 | 000000000 | 0000 |
| 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" | 1/2" | 0.161" | T30 | 5.5 mm | 10 | 10 | 000000000 | 0000 |
| 1" | 1/2" | 0.161" | T30 | 5.5 mm | 10 | 10 | 000000000 | 0000 |
| 1 1/4" | 1/2" | 0.161" | T30 | 5.5 mm | 10 | 10 | 000000000 | 0000 |
Drilled Spanner Flat Head Screws for Sheet Metal
Install and remove these screws with a tamper-resistant spanner driver. 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" | 0.279" | 0.083" | No. 6 | No. 32 | 18 | 25 | 000000000 | 00000 |
| 3/4" | 0.279" | 0.083" | No. 6 | No. 32 | 18 | 25 | 000000000 | 0000 |
| 1" | 0.279" | 0.083" | No. 6 | No. 32 | 18 | 25 | 000000000 | 0000 |
No. 8 | ||||||||
| 1/2" | 0.332" | 0.1" | No. 8 | No. 29 | 15 | 25 | 000000000 | 0000 |
| 3/4" | 0.332" | 0.1" | No. 8 | No. 29 | 15 | 25 | 000000000 | 00000 |
| 1" | 0.332" | 0.1" | No. 8 | No. 29 | 15 | 25 | 000000000 | 00000 |
| 1 1/4" | 0.332" | 0.1" | No. 8 | No. 29 | 15 | 25 | 000000000 | 00000 |
| 1 1/2" | 0.332" | 0.1" | No. 8 | No. 29 | 15 | 25 | 000000000 | 00000 |
No. 10 | ||||||||
| 1/2" | 0.385" | 0.116" | No. 10 | No. 21 | 12 | 25 | 000000000 | 0000 |
| 3/4" | 0.385" | 0.116" | No. 10 | No. 21 | 12 | 25 | 000000000 | 0000 |
| 1" | 0.385" | 0.116" | No. 10 | No. 21 | 12 | 25 | 000000000 | 00000 |
| 1 1/2" | 0.385" | 0.116" | No. 10 | No. 21 | 12 | 25 | 000000000 | 00000 |
| 2" | 0.385" | 0.116" | No. 10 | No. 21 | 12 | 25 | 000000000 | 00000 |
No. 12 | ||||||||
| 1" | 0.412" | 0.132" | No. 12 | 3/16" | 11 | 25 | 000000000 | 00000 |
| 1 1/4" | 0.412" | 0.132" | No. 12 | 3/16" | 11 | 25 | 000000000 | 00000 |
| 1 1/2" | 0.412" | 0.132" | No. 12 | 3/16" | 11 | 25 | 000000000 | 00000 |
| 2" | 0.412" | 0.132" | No. 12 | 3/16" | 11 | 10 | 000000000 | 0000 |
Tamper-Resistant Hex Drive Flat
Head Screws for Sheet Metal
Also known as pin-in-hex, install and remove these screws with a tamper-resistant hex driver. They're beveled under the head for a flush finish in countersunk holes. Made from 18-8 stainless steel, they are chemical resistant and may be mildly magnetic. Screws 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" | 0.307" | 0.097" | 1/8" | No. 32 | 18 | 25 | 000000000 | 00000 |
| 3/4" | 0.307" | 0.097" | 1/8" | No. 32 | 18 | 25 | 000000000 | 00000 |
| 1" | 0.307" | 0.097" | 1/8" | No. 32 | 18 | 25 | 000000000 | 00000 |
No. 8 | ||||||||
| 1/2" | 0.359" | 0.112" | 5/32" | No. 29 | 15 | 25 | 000000000 | 0000 |
| 3/4" | 0.359" | 0.112" | 5/32" | No. 29 | 15 | 25 | 000000000 | 00000 |
| 1" | 0.359" | 0.112" | 5/32" | No. 29 | 15 | 25 | 000000000 | 00000 |
No. 10 | ||||||||
| 1/2" | 0.411" | 0.127" | 5/32" | No. 21 | 12 | 25 | 000000000 | 00000 |
| 3/4" | 0.411" | 0.127" | 5/32" | No. 21 | 12 | 25 | 000000000 | 00000 |
| 1" | 0.411" | 0.127" | 5/32" | No. 21 | 12 | 25 | 000000000 | 00000 |
| 1 1/4" | 0.411" | 0.127" | 5/32" | No. 21 | 12 | 25 | 000000000 | 00000 |
| 1 1/2" | 0.411" | 0.127" | 5/32" | No. 21 | 12 | 25 | 000000000 | 00000 |
No. 14 | ||||||||
| 3/4" | 0.531" | 0.161" | 5/32" | 5.5 mm | 10 | 10 | 000000000 | 0000 |
| 1" | 0.531" | 0.161" | 5/32" | 5.5 mm | 10 | 10 | 000000000 | 0000 |
| 1 1/4" | 0.531" | 0.161" | 5/32" | 5.5 mm | 10 | 10 | 000000000 | 0000 |
| 1 1/2" | 0.531" | 0.161" | 5/32" | 5.5 mm | 10 | 10 | 000000000 | 0000 |
One-Way Oval Head Screws for Sheet Metal
The S-shaped drive can be installed with a standard slotted driver, but requires a special tool for removal. These screws are beveled under the head for a flush finish in countersunk holes. Made from 18-8 stainless steel, they are chemical resistant and may be mildly magnetic. Screws 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.