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Steel Rounded Head Thread-Cutting Screws for Metal
These steel screws are zinc plated to resist corrosion in wet environments. 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 under the head.
Screws meet ASME B18.6.3 dimensional standards. They also meet SAE J933 for material quality.
Head | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Dia. | Ht. | Drive Size | Drill Bit Size | Tapping Screw Type | For Use In | Specifications Met | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel | ||||||||||
2-56  | ||||||||||
| 1/8" | 0.167" | 0.062" | No. 1 | No. 48 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 50 | 000000000 | 000000 |
| 3/16" | 0.167" | 0.062" | No. 1 | No. 49 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 100 | 000000000 | 0000 |
| 1/4" | 0.167" | 0.062" | No. 1 | No. 49 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 100 | 000000000 | 0000 |
| 5/16" | 0.167" | 0.062" | No. 1 | No. 48 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 50 | 000000000 | 00000 |
| 3/8" | 0.167" | 0.062" | No. 1 | No. 49 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 100 | 000000000 | 00000 |
| 7/16" | 0.167" | 0.062" | No. 1 | No. 48 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 50 | 000000000 | 00000 |
4-40 | ||||||||||
| 3/16" | 0.219" | 0.08" | No. 1 | No. 41 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 100 | 000000000 | 00000 |
| 1/4" | 0.219" | 0.08" | No. 1 | No. 41 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 100 | 000000000 | 0000 |
| 5/16" | 0.219" | 0.08" | No. 1 | No. 41 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 100 | 000000000 | 00000 |
| 3/8" | 0.219" | 0.08" | No. 1 | No. 41 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 100 | 000000000 | 00000 |
| 7/16" | 0.219" | 0.08" | No. 1 | No. 41 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 50 | 000000000 | 00000 |
| 1/2" | 0.219" | 0.08" | No. 1 | No. 41 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 100 | 000000000 | 0000 |
| 5/8" | 0.219" | 0.08" | No. 1 | No. 41 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 100 | 000000000 | 00000 |
| 3/4" | 0.219" | 0.08" | No. 1 | No. 41 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 100 | 000000000 | 00000 |
| 7/8" | 0.219" | 0.08" | No. 1 | No. 41 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 25 | 000000000 | 00000 |
| 1" | 0.219" | 0.08" | No. 1 | No. 41 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 50 | 000000000 | 00000 |
| 1 1/4" | 0.219" | 0.08" | No. 1 | No. 41 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 25 | 000000000 | 00000 |
5-40 | ||||||||||
| 1/4" | 0.245" | 0.089" | No. 2 | No. 35 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 25 | 000000000 | 0000 |
| 3/8" | 0.245" | 0.089" | No. 2 | No. 35 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 25 | 000000000 | 0000 |
6-32 | ||||||||||
| 3/16" | 0.27" | 0.097" | No. 2 | No. 31 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 100 | 000000000 | 00000 |
| 1/4" | 0.27" | 0.097" | No. 2 | No. 31 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 100 | 000000000 | 00000 |
| 5/16" | 0.27" | 0.097" | No. 2 | No. 31 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 100 | 000000000 | 00000 |
| 3/8" | 0.27" | 0.097" | No. 2 | No. 31 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 100 | 000000000 | 00000 |
| 7/16" | 0.27" | 0.097" | No. 2 | No. 31 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 100 | 000000000 | 00000 |
| 1/2" | 0.27" | 0.097" | No. 2 | No. 31 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 100 | 000000000 | 00000 |
| 5/8" | 0.27" | 0.097" | No. 2 | No. 31 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 100 | 000000000 | 00000 |
| 3/4" | 0.27" | 0.097" | No. 2 | No. 31 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 100 | 000000000 | 00000 |
| 7/8" | 0.27" | 0.097" | No. 2 | No. 31 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 100 | 000000000 | 00000 |
| 1" | 0.27" | 0.097" | No. 2 | No. 31 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 100 | 000000000 | 00000 |
| 1 1/4" | 0.27" | 0.097" | No. 2 | No. 31 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 50 | 000000000 | 00000 |
| 2" | 0.27" | 0.097" | No. 2 | No. 31 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 25 | 000000000 | 00000 |
8-32 | ||||||||||
| 1/4" | 0.322" | 0.115" | No. 2 | No. 26 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 100 | 000000000 | 00000 |
| 5/16" | 0.322" | 0.115" | No. 2 | No. 26 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 100 | 000000000 | 00000 |
| 3/8" | 0.322" | 0.115" | No. 2 | No. 26 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 100 | 000000000 | 00000 |
| 1/2" | 0.322" | 0.115" | No. 2 | No. 26 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 100 | 000000000 | 00000 |
| 5/8" | 0.322" | 0.115" | No. 2 | No. 26 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 100 | 000000000 | 00000 |
| 3/4" | 0.322" | 0.115" | No. 2 | No. 26 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 100 | 000000000 | 00000 |
| 1" | 0.322" | 0.115" | No. 2 | No. 26 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 100 | 000000000 | 00000 |
| 1 1/4" | 0.322" | 0.115" | No. 2 | No. 20 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 50 | 000000000 | 00000 |
| 1 1/2" | 0.322" | 0.115" | No. 2 | No. 20 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 25 | 000000000 | 0000 |
| 1 3/4" | 0.322" | 0.115" | No. 2 | No. 20 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 25 | 000000000 | 0000 |
| 2" | 0.322" | 0.115" | No. 2 | No. 20 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 25 | 000000000 | 00000 |
| 2 1/2" | 0.322" | 0.115" | No. 2 | No. 20 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 25 | 000000000 | 00000 |
| 3" | 0.322" | 0.115" | No. 2 | No. 20 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 25 | 000000000 | 00000 |
10-24 | ||||||||||
| 1/4" | 0.373" | 0.133" | No. 2 | No. 19 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 50 | 000000000 | 00000 |
| 5/16" | 0.373" | 0.133" | No. 2 | No. 19 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 100 | 000000000 | 00000 |
| 3/8" | 0.373" | 0.133" | No. 2 | No. 17 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 100 | 000000000 | 00000 |
| 1/2" | 0.373" | 0.133" | No. 2 | No. 17 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 100 | 000000000 | 00000 |
| 5/8" | 0.373" | 0.133" | No. 2 | No. 17 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 100 | 000000000 | 00000 |
| 3/4" | 0.373" | 0.133" | No. 2 | No. 17 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 100 | 000000000 | 00000 |
| 7/8" | 0.373" | 0.133" | No. 2 | No. 19 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 50 | 000000000 | 00000 |
| 1" | 0.373" | 0.133" | No. 2 | No. 17 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 50 | 000000000 | 00000 |
| 1 1/4" | 0.373" | 0.133" | No. 2 | No. 17 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 50 | 000000000 | 00000 |
| 1 1/2" | 0.373" | 0.133" | No. 2 | No. 17 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 50 | 000000000 | 00000 |
| 1 3/4" | 0.373" | 0.133" | No. 2 | No. 19 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 25 | 000000000 | 0000 |
| 2" | 0.373" | 0.133" | No. 2 | No. 19 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 25 | 000000000 | 00000 |
10-32 | ||||||||||
| 1/4" | 0.373" | 0.133" | No. 2 | 11/64" | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 50 | 000000000 | 0000 |
| 5/16" | 0.373" | 0.133" | No. 2 | 11/64" | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 100 | 000000000 | 00000 |
| 3/8" | 0.373" | 0.133" | No. 2 | No. 17 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 100 | 000000000 | 00000 |
| 1/2" | 0.373" | 0.133" | No. 2 | No. 17 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 100 | 000000000 | 00000 |
| 5/8" | 0.373" | 0.133" | No. 2 | No. 17 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 100 | 000000000 | 00000 |
| 3/4" | 0.373" | 0.133" | No. 2 | No. 17 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 100 | 000000000 | 00000 |
| 7/8" | 0.373" | 0.133" | No. 2 | 11/64" | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 25 | 000000000 | 00000 |
| 1" | 0.373" | 0.133" | No. 2 | No. 17 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 50 | 000000000 | 00000 |
| 1 1/4" | 0.373" | 0.133" | No. 2 | No. 17 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 50 | 000000000 | 00000 |
| 1 1/2" | 0.373" | 0.133" | No. 2 | No. 17 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 50 | 000000000 | 00000 |
| 2" | 0.373" | 0.133" | No. 2 | 11/64" | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 25 | 000000000 | 00000 |
| 3" | 0.373" | 0.133" | No. 2 | 11/64" | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 10 | 000000000 | 00000 |
12-24 | ||||||||||
| 1/4" | 0.425" | 0.151" | No. 3 | No. 11 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 10 | 000000000 | 00000 |
| 3/8" | 0.425" | 0.151" | No. 3 | No. 11 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 50 | 000000000 | 00000 |
| 1/2" | 0.425" | 0.151" | No. 3 | No. 8 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 50 | 000000000 | 00000 |
| 5/8" | 0.425" | 0.151" | No. 3 | No. 11 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 50 | 000000000 | 00000 |
| 3/4" | 0.425" | 0.151" | No. 3 | No. 8 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 50 | 000000000 | 00000 |
| 1" | 0.425" | 0.151" | No. 3 | No. 11 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 25 | 000000000 | 0000 |
| 1 1/4" | 0.425" | 0.151" | No. 3 | No. 11 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 25 | 000000000 | 00000 |
| 2" | 0.425" | 0.151" | No. 3 | No. 11 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 10 | 000000000 | 00000 |
1/4"-20 | ||||||||||
| 3/8" | 0.492" | 0.175" | No. 3 | No. 2 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 25 | 000000000 | 0000 |
| 1/2" | 0.492" | 0.175" | No. 3 | No. 1 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 25 | 000000000 | 00000 |
| 5/8" | 0.492" | 0.175" | No. 3 | No. 1 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 25 | 000000000 | 00000 |
| 3/4" | 0.492" | 0.175" | No. 3 | No. 1 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 25 | 000000000 | 00000 |
| 1" | 0.492" | 0.175" | No. 3 | No. 1 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 25 | 000000000 | 00000 |
| 1 1/4" | 0.492" | 0.175" | No. 3 | No. 1 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 25 | 000000000 | 00000 |
| 1 1/2" | 0.492" | 0.175" | No. 3 | No. 1 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 25 | 000000000 | 00000 |
| 2" | 0.492" | 0.175" | No. 3 | No. 1 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 25 | 000000000 | 00000 |
| 2 1/2" | 0.492" | 0.175" | No. 3 | No. 2 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 10 | 000000000 | 00000 |
| 3" | 0.492" | 0.175" | No. 3 | No. 2 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 10 | 000000000 | 00000 |
| 3 1/2" | 0.492" | 0.175" | No. 3 | No. 2 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 5 | 000000000 | 00000 |
| 4" | 0.492" | 0.175" | No. 3 | No. 2 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 5 | 000000000 | 00000 |
5/16"-18 | ||||||||||
| 1/2" | 0.615" | 0.218" | No. 4 | K | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 5 | 000000000 | 0000 |
| 3/4" | 0.615" | 0.218" | No. 4 | K | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 10 | 000000000 | 00000 |
| 1" | 0.615" | 0.218" | No. 4 | K | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 10 | 000000000 | 00000 |
| 1 1/4" | 0.615" | 0.218" | No. 4 | K | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 10 | 000000000 | 00000 |
| 2" | 0.615" | 0.218" | No. 4 | K | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 5 | 000000000 | 00000 |
3/8"-16 | ||||||||||
| 1/2" | 0.74" | 0.261" | No. 4 | R | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 1 | 000000000 | 0000 |
| 3/4" | 0.74" | 0.261" | No. 4 | R | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 1 | 000000000 | 0000 |
| 1" | 0.74" | 0.261" | No. 4 | R | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 1 | 000000000 | 0000 |
Black Zinc-Plated Steel | ||||||||||
4-40 | ||||||||||
| 1/4" | 0.219" | 0.08" | No. 1 | No. 41 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 50 | 000000000 | 00000 |
| 3/8" | 0.219" | 0.08" | No. 1 | No. 41 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 50 | 000000000 | 0000 |
6-32 | ||||||||||
| 3/8" | 0.27" | 0.097" | No. 2 | No. 31 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 50 | 000000000 | 00000 |
| 1/2" | 0.27" | 0.097" | No. 2 | No. 31 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 50 | 000000000 | 00000 |
| 3/4" | 0.27" | 0.097" | No. 2 | No. 31 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 50 | 000000000 | 00000 |
8-32 | ||||||||||
| 3/8" | 0.322" | 0.115" | No. 2 | No. 26 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 50 | 000000000 | 00000 |
| 1/2" | 0.322" | 0.115" | No. 2 | No. 26 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 50 | 000000000 | 00000 |
| 3/4" | 0.322" | 0.115" | No. 2 | No. 26 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 50 | 000000000 | 00000 |
| 1" | 0.322" | 0.115" | No. 2 | No. 26 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 50 | 000000000 | 00000 |
10-24 | ||||||||||
| 3/8" | 0.373" | 0.133" | No. 2 | No. 17 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 50 | 000000000 | 00000 |
| 1/2" | 0.373" | 0.133" | No. 2 | No. 17 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 50 | 000000000 | 00000 |
| 3/4" | 0.373" | 0.133" | No. 2 | No. 17 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 50 | 000000000 | 00000 |
10-32 | ||||||||||
| 3/8" | 0.373" | 0.133" | No. 2 | No. 17 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 50 | 000000000 | 00000 |
| 1/2" | 0.373" | 0.133" | No. 2 | No. 17 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 50 | 000000000 | 00000 |
| 3/4" | 0.373" | 0.133" | No. 2 | No. 17 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 50 | 000000000 | 00000 |
| 1" | 0.373" | 0.133" | No. 2 | No. 17 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 25 | 000000000 | 00000 |
12-24 | ||||||||||
| 1/2" | 0.425" | 0.151" | No. 3 | No. 8 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 25 | 000000000 | 00000 |
| 3/4" | 0.425" | 0.151" | No. 3 | No. 8 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 25 | 000000000 | 00000 |
1/4"-20 | ||||||||||
| 1/2" | 0.492" | 0.175" | No. 3 | No. 1 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 25 | 000000000 | 00000 |
| 3/4" | 0.492" | 0.175" | No. 3 | No. 1 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 25 | 000000000 | 00000 |
| 1" | 0.492" | 0.175" | No. 3 | No. 1 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 25 | 000000000 | 00000 |
| 1 1/2" | 0.492" | 0.175" | No. 3 | No. 1 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 25 | 000000000 | 00000 |
| 2" | 0.492" | 0.175" | No. 3 | No. 1 | F | Aluminum, Brass, Cast Iron, Sheet Metal | ASME B18.6.3, SAE J933 | 10 | 000000000 | 0000 |
Stainless Steel Rounded Head Thread-Cutting Screws for Metal
Made from 410 stainless steel, these screws are strong, wear resistant, and mildly chemical resistant. 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. Not for use with aluminum. Length is measured from under the head.
Head | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Lg. | Dia. | Ht. | Drive Size | Drill Bit Size | Tapping Screw Type | For Use In | Pkg. Qty. | Pkg. | |
410 Stainless Steel | |||||||||
4-40 | |||||||||
| 1/4" | 0.219" | 0.08" | No. 1 | 2.2 mm | F | Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 00000 |
| 3/8" | 0.219" | 0.08" | No. 1 | 2.2 mm | F | Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 0000 |
| 1/2" | 0.219" | 0.08" | No. 1 | 2.2 mm | F | Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 0000 |
6-32 | |||||||||
| 1/4" | 0.27" | 0.097" | No. 2 | No. 36 | F | Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 0000 |
| 3/8" | 0.27" | 0.097" | No. 2 | No. 36 | F | Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 0000 |
| 1/2" | 0.27" | 0.097" | No. 2 | No. 36 | F | Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 0000 |
| 5/8" | 0.27" | 0.097" | No. 2 | No. 36 | F | Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 0000 |
| 3/4" | 0.27" | 0.097" | No. 2 | No. 36 | F | Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 0000 |
8-32 | |||||||||
| 1/4" | 0.322" | 0.115" | No. 2 | No. 29 | F | Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 00000 |
| 3/8" | 0.322" | 0.115" | No. 2 | No. 29 | F | Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 00000 |
| 1/2" | 0.322" | 0.115" | No. 2 | No. 29 | F | Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 0000 |
| 5/8" | 0.322" | 0.115" | No. 2 | No. 29 | F | Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 00000 |
| 3/4" | 0.322" | 0.115" | No. 2 | No. 29 | F | Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 00000 |
| 1" | 0.322" | 0.115" | No. 2 | No. 29 | F | Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 00000 |
10-24 | |||||||||
| 3/8" | 0.373" | 0.133" | No. 2 | No. 25 | F | Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 00000 |
| 1/2" | 0.373" | 0.133" | No. 2 | No. 25 | F | Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 00000 |
| 5/8" | 0.373" | 0.133" | No. 2 | No. 25 | F | Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 00000 |
| 3/4" | 0.373" | 0.133" | No. 2 | No. 25 | F | Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 00000 |
| 1" | 0.373" | 0.133" | No. 2 | No. 25 | F | Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 00000 |
| 1 1/2" | 0.373" | 0.133" | No. 2 | No. 25 | F | Brass, Cast Iron, Sheet Metal | 25 | 000000000 | 0000 |
10-32 | |||||||||
| 3/8" | 0.373" | 0.133" | No. 2 | No. 21 | F | Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 00000 |
| 1/2" | 0.373" | 0.133" | No. 2 | No. 21 | F | Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 00000 |
| 5/8" | 0.373" | 0.133" | No. 2 | No. 21 | F | Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 00000 |
| 3/4" | 0.373" | 0.133" | No. 2 | No. 21 | F | Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 00000 |
| 1" | 0.373" | 0.133" | No. 2 | No. 21 | F | Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 00000 |
12-24 | |||||||||
| 3/8" | 0.425" | 0.151" | No. 3 | No. 18 | F | Brass, Cast Iron, Sheet Metal | 50 | 000000000 | 0000 |
| 1/2" | 0.425" | 0.151" | No. 3 | No. 18 | F | Brass, Cast Iron, Sheet Metal | 50 | 000000000 | 00000 |
1/4"-20 | |||||||||
| 1/2" | 0.492" | 0.175" | No. 3 | No. 7 | F | Brass, Cast Iron, Sheet Metal | 50 | 000000000 | 00000 |
| 3/4" | 0.492" | 0.175" | No. 3 | No. 7 | F | Brass, Cast Iron, Sheet Metal | 50 | 000000000 | 00000 |
| 1" | 0.492" | 0.175" | No. 3 | No. 7 | F | Brass, Cast Iron, Sheet Metal | 50 | 000000000 | 00000 |
| 1 1/4" | 0.492" | 0.175" | No. 3 | No. 7 | F | Brass, Cast Iron, Sheet Metal | 25 | 000000000 | 0000 |
| 1 1/2" | 0.492" | 0.175" | No. 3 | No. 7 | F | Brass, Cast Iron, Sheet Metal | 10 | 000000000 | 0000 |
5/16"-18 | |||||||||
| 3/4" | 0.615" | 0.218" | No. 4 | F | F | Brass, Cast Iron, Sheet Metal | 10 | 000000000 | 0000 |
| 1" | 0.615" | 0.218" | No. 4 | F | F | Brass, Cast Iron, Sheet Metal | 10 | 000000000 | 0000 |
Quick-Install Thread-Cutting Screws for Soft Metal
A wide cutting slot provides excellent chip clearing and low driving torque in soft metal such as brass. Made from 410 stainless steel, these screws are strong, wear resistant, and mildly chemical resistant. Not for use with aluminum. Length is measured from under the head.
Head | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Lg. | Dia. | Ht. | Drive Size | Drill Bit Size | Tapping Screw Type | For Use In | Pkg. Qty. | Pkg. | |
410 Stainless Steel | |||||||||
4-40 | |||||||||
| 1/4" | 0.219" | 0.08" | No. 1 | No. 41 | 23/T | Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 00000 |
| 3/8" | 0.219" | 0.08" | No. 1 | No. 41 | 23/T | Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 0000 |
| 1/2" | 0.219" | 0.08" | No. 1 | No. 41 | 23/T | Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 0000 |
6-32 | |||||||||
| 1/4" | 0.27" | 0.097" | No. 2 | No. 31 | 23/T | Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 0000 |
| 3/8" | 0.27" | 0.097" | No. 2 | No. 31 | 23/T | Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 0000 |
| 1/2" | 0.27" | 0.097" | No. 2 | No. 31 | 23/T | Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 0000 |
8-32 | |||||||||
| 1/4" | 0.322" | 0.115" | No. 2 | No. 26 | 23/T | Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 0000 |
| 3/8" | 0.322" | 0.115" | No. 2 | No. 26 | 23/T | Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 00000 |
| 1/2" | 0.322" | 0.115" | No. 2 | No. 26 | 23/T | Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 0000 |
10-24 | |||||||||
| 3/8" | 0.373" | 0.133" | No. 2 | No. 17 | 23/T | Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 00000 |
| 1/2" | 0.373" | 0.133" | No. 2 | No. 17 | 23/T | Brass, Cast Iron, Sheet Metal | 50 | 000000000 | 0000 |
| 3/4" | 0.373" | 0.133" | No. 2 | No. 17 | 23/T | Brass, Cast Iron, Sheet Metal | 50 | 000000000 | 00000 |
10-32 | |||||||||
| 3/8" | 0.373" | 0.133" | No. 2 | No. 17 | 23/T | Brass, Cast Iron, Sheet Metal | 100 | 000000000 | 00000 |
| 1/2" | 0.373" | 0.133" | No. 2 | No. 17 | 23/T | Brass, Cast Iron, Sheet Metal | 50 | 000000000 | 0000 |
| 3/4" | 0.373" | 0.133" | No. 2 | No. 17 | 23/T | Brass, Cast Iron, Sheet Metal | 50 | 000000000 | 00000 |
1/4"-20 | |||||||||
| 1/2" | 0.492" | 0.175" | No. 3 | No. 1 | 23/T | Brass, Cast Iron, Sheet Metal | 50 | 000000000 | 00000 |
| 3/4" | 0.492" | 0.175" | No. 3 | No. 1 | 23/T | Brass, Cast Iron, Sheet Metal | 25 | 000000000 | 00000 |
| 1" | 0.492" | 0.175" | No. 3 | No. 1 | 23/T | Brass, Cast Iron, Sheet Metal | 25 | 000000000 | 00000 |
Thread-Cutting Screws for Plastic
These screws cut threads into drilled holes as they’re turned, so they require less driving torque and cause less stress on material than thread-forming screws. Also known as Type BT and Type 25 screws, they have coarse threads that grip soft plastic. They're 410 stainless steel, which is strong, wear resistant, and mildly chemical resistant. Length is measured from under the head.
Head | ||||||||
|---|---|---|---|---|---|---|---|---|
| Lg. | Dia. | Ht. | Drive Size | Drill Bit Size | Approximate Threads per Inch | Pkg. Qty. | Pkg. | |
410 Stainless Steel | ||||||||
No. 2 | ||||||||
| 1/4" | 0.167" | 0.062" | No. 1 | No. 49 | 32 | 100 | 000000000 | 00000 |
| 5/16" | 0.167" | 0.062" | No. 1 | No. 49 | 32 | 100 | 000000000 | 00000 |
| 3/8" | 0.167" | 0.062" | No. 1 | No. 49 | 32 | 100 | 000000000 | 00000 |
| 1/2" | 0.167" | 0.062" | No. 1 | No. 49 | 32 | 100 | 000000000 | 00000 |
No. 4 | ||||||||
| 1/4" | 0.219" | 0.08" | No. 1 | No. 41 | 24 | 100 | 000000000 | 0000 |
| 5/16" | 0.219" | 0.08" | No. 1 | No. 41 | 24 | 100 | 000000000 | 0000 |
| 3/8" | 0.219" | 0.08" | No. 1 | No. 41 | 24 | 100 | 000000000 | 0000 |
| 1/2" | 0.219" | 0.08" | No. 1 | No. 41 | 24 | 100 | 000000000 | 0000 |
| 3/4" | 0.219" | 0.08" | No. 1 | No. 41 | 24 | 100 | 000000000 | 0000 |
No. 6 | ||||||||
| 1/4" | 0.27" | 0.097" | No. 2 | No. 31 | 20 | 100 | 000000000 | 0000 |
| 5/16" | 0.27" | 0.097" | No. 2 | No. 31 | 20 | 100 | 000000000 | 0000 |
| 3/8" | 0.27" | 0.097" | No. 2 | No. 31 | 20 | 100 | 000000000 | 0000 |
| 1/2" | 0.27" | 0.097" | No. 2 | No. 31 | 20 | 100 | 000000000 | 0000 |
| 5/8" | 0.27" | 0.097" | No. 2 | No. 31 | 20 | 100 | 000000000 | 00000 |
| 3/4" | 0.27" | 0.097" | No. 2 | No. 31 | 20 | 100 | 000000000 | 00000 |
| 1" | 0.27" | 0.097" | No. 2 | No. 31 | 20 | 100 | 000000000 | 00000 |
No. 8 | ||||||||
| 3/8" | 0.322" | 0.115" | No. 2 | No. 26 | 18 | 100 | 000000000 | 00000 |
| 1/2" | 0.322" | 0.115" | No. 2 | No. 26 | 18 | 100 | 000000000 | 00000 |
| 5/8" | 0.322" | 0.115" | No. 2 | No. 26 | 18 | 100 | 000000000 | 00000 |
| 3/4" | 0.322" | 0.115" | No. 2 | No. 26 | 18 | 100 | 000000000 | 00000 |
| 1" | 0.322" | 0.115" | No. 2 | No. 26 | 18 | 100 | 000000000 | 00000 |
| 1 1/4" | 0.322" | 0.115" | No. 2 | No. 26 | 18 | 100 | 000000000 | 00000 |
| 1 1/2" | 0.322" | 0.115" | No. 2 | No. 26 | 18 | 100 | 000000000 | 00000 |
No. 10 | ||||||||
| 3/8" | 0.373" | 0.133" | No. 2 | No. 17 | 16 | 100 | 000000000 | 00000 |
| 1/2" | 0.373" | 0.133" | No. 2 | No. 17 | 16 | 100 | 000000000 | 00000 |
| 5/8" | 0.373" | 0.133" | No. 2 | No. 17 | 16 | 100 | 000000000 | 00000 |
| 3/4" | 0.373" | 0.133" | No. 2 | No. 17 | 16 | 100 | 000000000 | 00000 |
| 1" | 0.373" | 0.133" | No. 2 | No. 17 | 16 | 100 | 000000000 | 00000 |
| 1 1/4" | 0.373" | 0.133" | No. 2 | No. 17 | 16 | 50 | 000000000 | 00000 |
| 1 1/2" | 0.373" | 0.133" | No. 2 | No. 17 | 16 | 50 | 000000000 | 00000 |