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About Tapping Screws
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Screws for Joining Sheet Metal to Wood
Able to penetrate overlapping sheets, these screws have a secure hold in wood. The hex head allows for a firm grip with a wrench, while a rubber washer provides a watertight seal. They're corrosion-resistant-coated steel to resist corrosion in wet environments and minimize reactions between dissimilar metals. Length is measured from under the washer.
For technical drawings and 3-D models, click on a part number.
Head | |||||||
|---|---|---|---|---|---|---|---|
| Lg. | Wd. | Ht. | Washer OD | Approximate Threads per Inch | Pkg. Qty. | Pkg. | |
Corrosion-Resistant-Coated Steel | |||||||
No. 14  | |||||||
| 1 1/2" | 0.313" | 0.15" | 0.593" | 10 | 25 | 000000000 | 00000 |
Steel Hex Head Thread-Cutting Screws for Metal
External Hex with Flange
External Hex with Serrated Flange
External Hex/Phillips with Flange
External Hex/Slotted with Flange
Serrated Flange
These steel screws are zinc plated to resist corrosion in wet environments. They have a hex head for a secure grip with a wrench and a flange to reduce the risk of crushing thin metal. Screws 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 under the flange. Head height includes the flange.
Screws meet ASME B18.6.3 dimensional standards. They also meet SAE J933 standards for material quality.
Screws with serrations under the head grip the material surface for mild vibration resistance.
For technical drawings and 3-D models, click on a part number.
Head | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Wd. | Ht. | Flange Dia. | Drill Bit Size | Tapping Screw Type | For Use In | Pkg. Qty. | Specifications Met | Pkg. | |
External Hex—Zinc-Plated Steel | ||||||||||
4-40 | ||||||||||
| 1/4" | 0.188" | 0.079" | 0.243" | No. 41 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 100 | ASME B18.6.3, SAE J933 | 000000000 | 000000 |
6-32 | ||||||||||
| 1/4" | 0.25" | 0.118" | 0.328" | No. 31 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 50 | ASME B18.6.3, SAE J933 | 000000000 | 0000 |
| 3/8" | 0.25" | 0.118" | 0.328" | No. 31 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 100 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 1/2" | 0.25" | 0.118" | 0.328" | No. 31 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 100 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 3/4" | 0.25" | 0.118" | 0.328" | No. 31 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 100 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 1" | 0.25" | 0.118" | 0.328" | No. 31 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 50 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
8-32 | ||||||||||
| 1/4" | 0.25" | 0.141" | 0.348" | No. 26 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 100 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 5/16" | 0.25" | 0.141" | 0.348" | No. 26 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 50 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 3/8" | 0.25" | 0.141" | 0.348" | No. 26 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 100 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 1/2" | 0.25" | 0.141" | 0.348" | No. 26 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 100 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 5/8" | 0.25" | 0.141" | 0.348" | No. 26 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 100 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 3/4" | 0.25" | 0.141" | 0.348" | No. 26 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 50 | ASME B18.6.3, SAE J933 | 000000000 | 0000 |
| 1 1/2" | 0.25" | 0.141" | 0.348" | No. 26 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | ASME B18.6.3, SAE J933 | 000000000 | 0000 |
10-24 | ||||||||||
| 3/8" | 0.313" | 0.151" | 0.414" | No. 19 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 100 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 1/2" | 0.313" | 0.151" | 0.414" | No. 19 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 100 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 5/8" | 0.313" | 0.151" | 0.414" | No. 19 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 100 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 3/4" | 0.313" | 0.151" | 0.414" | No. 19 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 50 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 1" | 0.313" | 0.151" | 0.414" | No. 19 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 50 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 1 1/4" | 0.313" | 0.151" | 0.414" | No. 19 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 10 | ASME B18.6.3, SAE J933 | 000000000 | 0000 |
| 1 1/2" | 0.313" | 0.151" | 0.414" | No. 19 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 10 | ASME B18.6.3, SAE J933 | 000000000 | 0000 |
10-32 | ||||||||||
| 1/4" | 0.313" | 0.151" | 0.414" | 11/64" | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 5/16" | 0.313" | 0.151" | 0.414" | 11/64" | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 3/8" | 0.313" | 0.151" | 0.414" | 11/64" | F | Aluminum, Brass, Cast Iron, Sheet Metal | 100 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 1/2" | 0.313" | 0.151" | 0.414" | 11/64" | F | Aluminum, Brass, Cast Iron, Sheet Metal | 50 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 3/4" | 0.313" | 0.151" | 0.414" | 11/64" | F | Aluminum, Brass, Cast Iron, Sheet Metal | 50 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
12-24 | ||||||||||
| 1/2" | 0.313" | 0.194" | 0.432" | No. 11 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 50 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 5/8" | 0.313" | 0.194" | 0.432" | No. 11 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 3/4" | 0.313" | 0.194" | 0.432" | No. 11 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 1" | 0.313" | 0.194" | 0.432" | No. 11 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 10 | ASME B18.6.3, SAE J933 | 000000000 | 0000 |
1/4"-20 | ||||||||||
| 3/8" | 0.375" | 0.24" | 0.52" | No. 2 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 50 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 1/2" | 0.375" | 0.24" | 0.52" | No. 2 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 50 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 5/8" | 0.375" | 0.24" | 0.52" | No. 2 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 3/4" | 0.375" | 0.24" | 0.52" | No. 2 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 7/8" | 0.375" | 0.24" | 0.52" | No. 2 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 10 | ASME B18.6.3, SAE J933 | 000000000 | 0000 |
| 1" | 0.375" | 0.24" | 0.52" | No. 2 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 1 1/4" | 0.375" | 0.24" | 0.52" | No. 2 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 1 1/2" | 0.375" | 0.24" | 0.52" | No. 2 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 1 3/4" | 0.375" | 0.24" | 0.52" | No. 2 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 10 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 2" | 0.375" | 0.24" | 0.52" | No. 2 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 10 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 2 1/2" | 0.375" | 0.24" | 0.52" | No. 2 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 5 | ASME B18.6.3, SAE J933 | 000000000 | 0000 |
| 3" | 0.375" | 0.24" | 0.52" | No. 2 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 5 | ASME B18.6.3, SAE J933 | 000000000 | 0000 |
| 4" | 0.375" | 0.24" | 0.52" | No. 2 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 1 | ASME B18.6.3, SAE J933 | 000000000 | 0000 |
5/16"-18 | ||||||||||
| 1/2" | 0.5" | 0.285" | 0.676" | K | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 5/8" | 0.5" | 0.285" | 0.676" | K | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 3/4" | 0.5" | 0.285" | 0.676" | K | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 1" | 0.5" | 0.285" | 0.676" | K | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 1 1/4" | 0.5" | 0.285" | 0.676" | K | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 1 1/2" | 0.5" | 0.285" | 0.676" | K | F | Aluminum, Brass, Cast Iron, Sheet Metal | 10 | ASME B18.6.3, SAE J933 | 000000000 | 0000 |
| 1 3/4" | 0.5" | 0.285" | 0.676" | K | F | Aluminum, Brass, Cast Iron, Sheet Metal | 10 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 2" | 0.5" | 0.285" | 0.676" | K | F | Aluminum, Brass, Cast Iron, Sheet Metal | 5 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 2 1/2" | 0.5" | 0.285" | 0.676" | K | F | Aluminum, Brass, Cast Iron, Sheet Metal | 5 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 3" | 0.5" | 0.285" | 0.676" | K | F | Aluminum, Brass, Cast Iron, Sheet Metal | 5 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
3/8"-16 | ||||||||||
| 1/2" | 0.563" | 0.358" | 0.78" | R | F | Aluminum, Brass, Cast Iron, Sheet Metal | 10 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 5/8" | 0.563" | 0.358" | 0.78" | R | F | Aluminum, Brass, Cast Iron, Sheet Metal | 10 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 3/4" | 0.563" | 0.358" | 0.78" | R | F | Aluminum, Brass, Cast Iron, Sheet Metal | 10 | ASME B18.6.3, SAE J933 | 000000000 | 0000 |
| 1" | 0.563" | 0.358" | 0.78" | R | F | Aluminum, Brass, Cast Iron, Sheet Metal | 10 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 1 1/4" | 0.563" | 0.358" | 0.78" | R | F | Aluminum, Brass, Cast Iron, Sheet Metal | 10 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 1 1/2" | 0.563" | 0.358" | 0.78" | R | F | Aluminum, Brass, Cast Iron, Sheet Metal | 10 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 2" | 0.563" | 0.358" | 0.78" | R | F | Aluminum, Brass, Cast Iron, Sheet Metal | 10 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 2 1/2" | 0.563" | 0.358" | 0.78" | R | F | Aluminum, Brass, Cast Iron, Sheet Metal | 1 | ASME B18.6.3, SAE J933 | 000000000 | 0000 |
| 3" | 0.563" | 0.358" | 0.78" | R | F | Aluminum, Brass, Cast Iron, Sheet Metal | 1 | ASME B18.6.3, SAE J933 | 000000000 | 0000 |
| 3 1/2" | 0.563" | 0.358" | 0.78" | R | F | Aluminum, Brass, Cast Iron, Sheet Metal | 1 | ASME B18.6.3, SAE J933 | 000000000 | 0000 |
| 4" | 0.563" | 0.358" | 0.78" | R | F | Aluminum, Brass, Cast Iron, Sheet Metal | 1 | ASME B18.6.3, SAE J933 | 000000000 | 0000 |
| 5" | 0.563" | 0.358" | 0.78" | R | F | Aluminum, Brass, Cast Iron, Sheet Metal | 1 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
1/2"-13 | ||||||||||
| 3/4" | 0.75" | 0.485" | 1.04" | 29/64" | F | Aluminum, Brass, Cast Iron, Sheet Metal | 1 | ASME B18.6.3, SAE J933 | 000000000 | 0000 |
| 1" | 0.75" | 0.485" | 1.04" | 29/64" | F | Aluminum, Brass, Cast Iron, Sheet Metal | 1 | ASME B18.6.3, SAE J933 | 000000000 | 0000 |
| 1 1/4" | 0.75" | 0.485" | 1.04" | 29/64" | F | Aluminum, Brass, Cast Iron, Sheet Metal | 1 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 1 1/2" | 0.75" | 0.485" | 1.04" | 29/64" | F | Aluminum, Brass, Cast Iron, Sheet Metal | 1 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 2" | 0.75" | 0.485" | 1.04" | 29/64" | F | Aluminum, Brass, Cast Iron, Sheet Metal | 1 | ASME B18.6.3, SAE J933 | 000000000 | 0000 |
| 2 1/2" | 0.75" | 0.485" | 1.04" | 29/64" | F | Aluminum, Brass, Cast Iron, Sheet Metal | 1 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 3" | 0.75" | 0.485" | 1.04" | 29/64" | F | Aluminum, Brass, Cast Iron, Sheet Metal | 1 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 4" | 0.75" | 0.485" | 1.04" | 29/64" | F | Aluminum, Brass, Cast Iron, Sheet Metal | 1 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
External Hex with Serrated Flange—Zinc-Plated Steel | ||||||||||
8-32 | ||||||||||
| 3/8" | 0.25" | 0.141" | 0.348" | No. 26 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 50 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 1/2" | 0.25" | 0.141" | 0.348" | No. 26 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 50 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 5/8" | 0.25" | 0.141" | 0.348" | No. 26 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 50 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
10-24 | ||||||||||
| 3/8" | 0.313" | 0.151" | 0.414" | No. 19 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 50 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
10-32 | ||||||||||
| 1/2" | 0.313" | 0.151" | 0.414" | 11/64" | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
12-24 | ||||||||||
| 3/4" | 0.313" | 0.194" | 0.432" | No. 11 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 1" | 0.313" | 0.194" | 0.432" | No. 11 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
1/4"-20 | ||||||||||
| 3/8" | 0.375" | 0.24" | 0.52" | No. 2 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 1/2" | 0.375" | 0.24" | 0.52" | No. 2 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 5/8" | 0.375" | 0.24" | 0.52" | No. 2 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 10 | ASME B18.6.3, SAE J933 | 000000000 | 0000 |
| 3/4" | 0.375" | 0.24" | 0.52" | No. 2 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 10 | ASME B18.6.3, SAE J933 | 000000000 | 0000 |
| 1" | 0.375" | 0.24" | 0.52" | No. 2 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 10 | ASME B18.6.3, SAE J933 | 000000000 | 0000 |
| 1 1/2" | 0.375" | 0.24" | 0.52" | No. 2 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 10 | ASME B18.6.3, SAE J933 | 000000000 | 0000 |
5/16"-18 | ||||||||||
| 1/2" | 0.5" | 0.285" | 0.676" | K | F | Aluminum, Brass, Cast Iron, Sheet Metal | 5 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 1" | 0.5" | 0.285" | 0.676" | K | F | Aluminum, Brass, Cast Iron, Sheet Metal | 5 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 1 1/4" | 0.5" | 0.285" | 0.676" | K | F | Aluminum, Brass, Cast Iron, Sheet Metal | 5 | ASME B18.6.3, SAE J933 | 000000000 | 0000 |
3/8"-16 | ||||||||||
| 3/4" | 0.563" | 0.358" | 0.78" | R | F | Aluminum, Brass, Cast Iron, Sheet Metal | 5 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 1" | 0.563" | 0.358" | 0.78" | R | F | Aluminum, Brass, Cast Iron, Sheet Metal | 5 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 1 1/4" | 0.563" | 0.358" | 0.78" | R | F | Aluminum, Brass, Cast Iron, Sheet Metal | 5 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 1 1/2" | 0.563" | 0.358" | 0.78" | R | F | Aluminum, Brass, Cast Iron, Sheet Metal | 5 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 2" | 0.563" | 0.358" | 0.78" | R | F | Aluminum, Brass, Cast Iron, Sheet Metal | 1 | ASME B18.6.3, SAE J933 | 000000000 | 0000 |
| 2 1/2" | 0.563" | 0.358" | 0.78" | R | F | Aluminum, Brass, Cast Iron, Sheet Metal | 1 | ASME B18.6.3, SAE J933 | 000000000 | 0000 |
1/2"-13 | ||||||||||
| 1" | 0.75" | 0.485" | 1.04" | 29/64" | F | Aluminum, Brass, Cast Iron, Sheet Metal | 1 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 1 1/2" | 0.75" | 0.485" | 1.04" | 29/64" | F | Aluminum, Brass, Cast Iron, Sheet Metal | 1 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
External Hex/Phillips—Zinc-Plated Steel | ||||||||||
8-32 | ||||||||||
| 3/8" | 0.25" | 0.141" | 0.348" | No. 26 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 50 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 1/2" | 0.25" | 0.141" | 0.348" | No. 26 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | ASME B18.6.3, SAE J933 | 000000000 | 0000 |
External Hex/Slotted—Zinc-Plated Steel | ||||||||||
4-40 | ||||||||||
| 1/4" | 0.188" | 0.079" | 0.243" | No. 41 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 100 | ASME B18.6.3, SAE J933 | 000000000 | 0000 |
| 3/8" | 0.188" | 0.079" | 0.243" | No. 41 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 100 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
6-32 | ||||||||||
| 1/4" | 0.25" | 0.118" | 0.328" | No. 31 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 100 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 5/16" | 0.25" | 0.118" | 0.328" | No. 31 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 100 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 3/8" | 0.25" | 0.118" | 0.328" | No. 31 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 100 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 1/2" | 0.25" | 0.118" | 0.328" | No. 31 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 100 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 3/4" | 0.25" | 0.118" | 0.328" | No. 31 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 100 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 1" | 0.25" | 0.118" | 0.328" | No. 31 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 100 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 2" | 0.25" | 0.118" | 0.328" | No. 31 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | ASME B18.6.3, SAE J933 | 000000000 | 0000 |
8-32 | ||||||||||
| 1/4" | 0.25" | 0.141" | 0.348" | No. 26 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 100 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 5/16" | 0.25" | 0.141" | 0.348" | No. 26 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 100 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 3/8" | 0.25" | 0.141" | 0.348" | No. 26 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 100 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 1/2" | 0.25" | 0.141" | 0.348" | No. 26 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 100 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 5/8" | 0.25" | 0.141" | 0.348" | No. 26 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 100 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 3/4" | 0.25" | 0.141" | 0.348" | No. 26 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 100 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 1" | 0.25" | 0.141" | 0.348" | No. 26 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 50 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 1 1/2" | 0.25" | 0.141" | 0.348" | No. 26 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | ASME B18.6.3, SAE J933 | 000000000 | 0000 |
| 2" | 0.25" | 0.141" | 0.348" | No. 26 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 2 1/2" | 0.25" | 0.141" | 0.348" | No. 26 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
10-24 | ||||||||||
| 1/4" | 0.313" | 0.151" | 0.414" | No. 19 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | ASME B18.6.3, SAE J933 | 000000000 | 0000 |
| 3/8" | 0.313" | 0.151" | 0.414" | No. 19 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 100 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 1/2" | 0.313" | 0.151" | 0.414" | No. 19 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 100 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 5/8" | 0.313" | 0.151" | 0.414" | No. 19 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 100 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 3/4" | 0.313" | 0.151" | 0.414" | No. 19 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 100 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 1" | 0.313" | 0.151" | 0.414" | No. 19 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 100 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 1 1/4" | 0.313" | 0.151" | 0.414" | No. 19 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | ASME B18.6.3, SAE J933 | 000000000 | 0000 |
| 1 1/2" | 0.313" | 0.151" | 0.414" | No. 19 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 2" | 0.313" | 0.151" | 0.414" | No. 19 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 10 | ASME B18.6.3, SAE J933 | 000000000 | 0000 |
10-32 | ||||||||||
| 1/4" | 0.313" | 0.151" | 0.414" | 11/64" | F | Aluminum, Brass, Cast Iron, Sheet Metal | 100 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 3/8" | 0.313" | 0.151" | 0.414" | 11/64" | F | Aluminum, Brass, Cast Iron, Sheet Metal | 100 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 1/2" | 0.313" | 0.151" | 0.414" | 11/64" | F | Aluminum, Brass, Cast Iron, Sheet Metal | 100 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 5/8" | 0.313" | 0.151" | 0.414" | 11/64" | F | Aluminum, Brass, Cast Iron, Sheet Metal | 100 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 3/4" | 0.313" | 0.151" | 0.414" | 11/64" | F | Aluminum, Brass, Cast Iron, Sheet Metal | 100 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 1" | 0.313" | 0.151" | 0.414" | 11/64" | F | Aluminum, Brass, Cast Iron, Sheet Metal | 100 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 1 1/4" | 0.313" | 0.151" | 0.414" | 11/64" | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 1 1/2" | 0.313" | 0.151" | 0.414" | 11/64" | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 1 3/4" | 0.313" | 0.151" | 0.414" | 11/64" | F | Aluminum, Brass, Cast Iron, Sheet Metal | 10 | ASME B18.6.3, SAE J933 | 000000000 | 0000 |
| 2" | 0.313" | 0.151" | 0.414" | 11/64" | F | Aluminum, Brass, Cast Iron, Sheet Metal | 10 | ASME B18.6.3, SAE J933 | 000000000 | 0000 |
| 2 1/2" | 0.313" | 0.151" | 0.414" | 11/64" | F | Aluminum, Brass, Cast Iron, Sheet Metal | 10 | ASME B18.6.3, SAE J933 | 000000000 | 0000 |
12-24 | ||||||||||
| 3/8" | 0.313" | 0.194" | 0.432" | No. 11 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 1/2" | 0.313" | 0.194" | 0.432" | No. 11 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 50 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 5/8" | 0.313" | 0.194" | 0.432" | No. 11 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 3/4" | 0.313" | 0.194" | 0.432" | No. 11 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 1" | 0.313" | 0.194" | 0.432" | No. 11 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 1 1/4" | 0.313" | 0.194" | 0.432" | No. 11 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 10 | ASME B18.6.3, SAE J933 | 000000000 | 0000 |
1/4"-20 | ||||||||||
| 3/8" | 0.375" | 0.24" | 0.52" | No. 2 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 50 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 1/2" | 0.375" | 0.24" | 0.52" | No. 2 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 50 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 5/8" | 0.375" | 0.24" | 0.52" | No. 2 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 50 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 3/4" | 0.375" | 0.24" | 0.52" | No. 2 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 50 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 1" | 0.375" | 0.24" | 0.52" | No. 2 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 1 1/4" | 0.375" | 0.24" | 0.52" | No. 2 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 1 1/2" | 0.375" | 0.24" | 0.52" | No. 2 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 1 3/4" | 0.375" | 0.24" | 0.52" | No. 2 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 10 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 2" | 0.375" | 0.24" | 0.52" | No. 2 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 25 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 2 1/2" | 0.375" | 0.24" | 0.52" | No. 2 | F | Aluminum, Brass, Cast Iron, Sheet Metal | 5 | ASME B18.6.3, SAE J933 | 000000000 | 0000 |
5/16"-18 | ||||||||||
| 1/2" | 0.5" | 0.285" | 0.676" | K | F | Aluminum, Brass, Cast Iron, Sheet Metal | 10 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 3/4" | 0.5" | 0.285" | 0.676" | K | F | Aluminum, Brass, Cast Iron, Sheet Metal | 10 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 1" | 0.5" | 0.285" | 0.676" | K | F | Aluminum, Brass, Cast Iron, Sheet Metal | 10 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 1 1/2" | 0.5" | 0.285" | 0.676" | K | F | Aluminum, Brass, Cast Iron, Sheet Metal | 5 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
3/8"-16 | ||||||||||
| 5/8" | 0.563" | 0.358" | 0.78" | R | F | Aluminum, Brass, Cast Iron, Sheet Metal | 5 | ASME B18.6.3, SAE J933 | 000000000 | 0000 |
| 1" | 0.563" | 0.358" | 0.78" | R | F | Aluminum, Brass, Cast Iron, Sheet Metal | 5 | ASME B18.6.3, SAE J933 | 000000000 | 0000 |
| 1 1/4" | 0.563" | 0.358" | 0.78" | R | F | Aluminum, Brass, Cast Iron, Sheet Metal | 5 | ASME B18.6.3, SAE J933 | 000000000 | 00000 |
| 2" | 0.563" | 0.358" | 0.78" | R | F | Aluminum, Brass, Cast Iron, Sheet Metal | 1 | ASME B18.6.3, SAE J933 | 000000000 | 0000 |
Stainless Steel Hex Head Thread-Cutting Screws for Metal
Made from 410 stainless steel, these screws are strong, wear resistant, and mildly chemical resistant. They have a hex head for a secure grip with a wrench and a flange to reduce the risk of crushing thin metal. Screws 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. Not for use with aluminum. Length is measured from under the flange. Head height includes the flange.
For technical drawings and 3-D models, click on a part number.
Head | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Lg. | Wd. | Ht. | Flange Dia. | Drill Bit Size | Tapping Screw Type | For Use In | Pkg. Qty. | Pkg. | |
410 Stainless Steel | |||||||||
8-32 | |||||||||
| 1/4" | 0.25" | 0.141" | 0.348" | No. 26 | F | Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 00000 |
| 3/8" | 0.25" | 0.141" | 0.348" | No. 26 | F | Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 0000 |
| 1/2" | 0.25" | 0.141" | 0.348" | No. 26 | F | Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 00000 |
10-24 | |||||||||
| 3/8" | 0.313" | 0.151" | 0.414" | No. 17 | F | Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 00000 |
| 1/2" | 0.313" | 0.151" | 0.414" | No. 17 | F | Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 00000 |
| 5/8" | 0.313" | 0.151" | 0.414" | No. 17 | F | Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 00000 |
| 3/4" | 0.313" | 0.151" | 0.414" | No. 17 | F | Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 00000 |
| 1" | 0.313" | 0.151" | 0.414" | No. 17 | F | Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 00000 |
| 1 1/4" | 0.313" | 0.151" | 0.414" | No. 17 | F | Brass, Cast Iron, Sheet Metal | 50 | 000000000 | 00000 |
| 1 1/2" | 0.313" | 0.151" | 0.414" | No. 17 | F | Brass, Cast Iron, Sheet Metal | 50 | 000000000 | 00000 |
10-32 | |||||||||
| 3/8" | 0.313" | 0.151" | 0.414" | No. 17 | F | Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 00000 |
| 1/2" | 0.313" | 0.151" | 0.414" | No. 17 | F | Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 00000 |
| 5/8" | 0.313" | 0.151" | 0.414" | No. 17 | F | Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 00000 |
| 3/4" | 0.313" | 0.151" | 0.414" | No. 17 | F | Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 00000 |
| 1" | 0.313" | 0.151" | 0.414" | No. 17 | F | Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 00000 |
| 1 1/4" | 0.313" | 0.151" | 0.414" | No. 17 | F | Brass, Cast Iron, Sheet Metal | 50 | 000000000 | 00000 |
| 1 1/2" | 0.313" | 0.151" | 0.414" | No. 17 | F | Brass, Cast Iron, Sheet Metal | 50 | 000000000 | 00000 |
12-24 | |||||||||
| 1/2" | 0.313" | 0.155" | 0.432" | No. 8 | F | Brass, Cast Iron, Sheet Metal | 50 | 000000000 | 00000 |
| 3/4" | 0.313" | 0.155" | 0.432" | No. 8 | F | Brass, Cast Iron, Sheet Metal | 50 | 000000000 | 00000 |
| 1" | 0.313" | 0.155" | 0.432" | No. 8 | F | Brass, Cast Iron, Sheet Metal | 50 | 000000000 | 00000 |
| 1 1/2" | 0.313" | 0.155" | 0.432" | No. 8 | F | Brass, Cast Iron, Sheet Metal | 25 | 000000000 | 0000 |
1/4"-20 | |||||||||
| 3/8" | 0.375" | 0.19" | 0.52" | No. 1 | F | Brass, Cast Iron, Sheet Metal | 50 | 000000000 | 00000 |
| 1/2" | 0.375" | 0.24" | 0.52" | No. 1 | F | Brass, Cast Iron, Sheet Metal | 50 | 000000000 | 00000 |
| 5/8" | 0.375" | 0.19" | 0.52" | No. 1 | F | Brass, Cast Iron, Sheet Metal | 50 | 000000000 | 00000 |
| 3/4" | 0.375" | 0.24" | 0.52" | No. 1 | F | Brass, Cast Iron, Sheet Metal | 50 | 000000000 | 00000 |
| 1" | 0.375" | 0.24" | 0.52" | No. 1 | F | Brass, Cast Iron, Sheet Metal | 50 | 000000000 | 00000 |
| 1 1/4" | 0.375" | 0.24" | 0.52" | No. 1 | F | Brass, Cast Iron, Sheet Metal | 50 | 000000000 | 00000 |
| 1 1/2" | 0.375" | 0.24" | 0.52" | No. 1 | F | Brass, Cast Iron, Sheet Metal | 25 | 000000000 | 00000 |
| 2" | 0.375" | 0.19" | 0.52" | No. 1 | F | Brass, Cast Iron, Sheet Metal | 25 | 000000000 | 00000 |
5/16"-18 | |||||||||
| 3/4" | 0.5" | 0.23" | 0.676" | L | F | Brass, Cast Iron, Sheet Metal | 25 | 000000000 | 00000 |
| 1" | 0.5" | 0.23" | 0.676" | L | F | Brass, Cast Iron, Sheet Metal | 25 | 000000000 | 00000 |
| 1 1/4" | 0.5" | 0.23" | 0.676" | L | F | Brass, Cast Iron, Sheet Metal | 10 | 000000000 | 0000 |
| 1 1/2" | 0.5" | 0.23" | 0.676" | L | F | Brass, Cast Iron, Sheet Metal | 10 | 000000000 | 00000 |
| 2" | 0.5" | 0.23" | 0.676" | L | F | Brass, Cast Iron, Sheet Metal | 10 | 000000000 | 00000 |
Electrical Grounding Screws
The green color identifies these as grounding screws. They have a flange that provides a wide flat surface for making solid electrical connections. Screws 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 under the flange. Head height includes the flange.
For technical drawings and 3-D models, click on a part number.
Head | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Lg. | Wd. | Ht. | Flange Dia. | Drill Bit Size | Tapping Screw Type | For Use In | Pkg. Qty. | Pkg. | |
Green-Dyed Zinc-Plated Steel | |||||||||
6-32 | |||||||||
| 1/4" | 0.25" | 0.118" | 0.328" | No. 31 | F | Aluminum, Brass, Sheet Metal, Steel | 25 | 000000000 | 00000 |
| 3/8" | 0.25" | 0.118" | 0.328" | No. 31 | F | Aluminum, Brass, Sheet Metal, Steel | 25 | 000000000 | 0000 |
8-32 | |||||||||
| 1/4" | 0.25" | 0.141" | 0.348" | No. 26 | F | Aluminum, Brass, Sheet Metal, Steel | 25 | 000000000 | 0000 |
| 5/16" | 0.25" | 0.141" | 0.348" | No. 26 | F | Aluminum, Brass, Sheet Metal, Steel | 25 | 000000000 | 0000 |
| 3/8" | 0.25" | 0.141" | 0.348" | No. 26 | F | Aluminum, Brass, Sheet Metal, Steel | 25 | 000000000 | 0000 |
| 1/2" | 0.25" | 0.141" | 0.348" | No. 26 | F | Aluminum, Brass, Sheet Metal, Steel | 25 | 000000000 | 0000 |
10-24 | |||||||||
| 3/8" | 0.313" | 0.151" | 0.414" | No. 16 | F | Aluminum, Brass, Sheet Metal, Steel | 25 | 000000000 | 00000 |
| 1/2" | 0.313" | 0.151" | 0.414" | No. 16 | F | Aluminum, Brass, Sheet Metal, Steel | 25 | 000000000 | 00000 |
10-32 | |||||||||
| 1/4" | 0.313" | 0.151" | 0.414" | No. 17 | F | Aluminum, Brass, Sheet Metal, Steel | 25 | 000000000 | 0000 |
| 5/16" | 0.313" | 0.151" | 0.414" | No. 17 | F | Aluminum, Brass, Sheet Metal, Steel | 25 | 000000000 | 0000 |
| 3/8" | 0.313" | 0.151" | 0.414" | No. 17 | F | Aluminum, Brass, Sheet Metal, Steel | 25 | 000000000 | 0000 |
| 1/2" | 0.313" | 0.151" | 0.414" | No. 17 | F | Aluminum, Brass, Sheet Metal, Steel | 25 | 000000000 | 0000 |
| 3/4" | 0.313" | 0.151" | 0.414" | No. 17 | F | Aluminum, Brass, Sheet Metal, Steel | 25 | 000000000 | 00000 |