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About Set Screws
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Alloy Steel Knurl-Grip Cup-Point Set Screws
Made from black-oxide alloy steel, these set screws resist corrosion in dry environments. They dig into hard surfaces for a secure hold and have serrations on the cup edge that grip the material surface to resist loosening. Length listed is the overall length.
For technical drawings and 3-D models, click on a part number.
| Lg. | Drive Size | Hardness | Specifications Met | Pkg. Qty. | Pkg. | |
Black-Oxide Alloy Steel | ||||||
|---|---|---|---|---|---|---|
4-40 | ||||||
| 1/8" | 0.050" | Rockwell C45 | ASME B18.3 | 100 | 000000000 | 000000 |
| 1/4" | 0.050" | Rockwell C45 | ASME B18.3 | 100 | 000000000 | 0000 |
| 3/8" | 0.050" | Rockwell C45 | ASME B18.3 | 100 | 000000000 | 0000 |
| 1/2" | 0.050" | Rockwell C45 | ASME B18.3 | 50 | 000000000 | 0000 |
4-48 | ||||||
| 1/8" | 0.050" | Rockwell C45 | ASME B18.3 | 50 | 000000000 | 00000 |
5-40 | ||||||
| 1/8" | 1/16" | Rockwell C45 | ASME B18.3 | 100 | 000000000 | 0000 |
| 3/16" | 1/16" | Rockwell C45 | ASME B18.3 | 100 | 000000000 | 0000 |
| 1/4" | 1/16" | Rockwell C45 | ASME B18.3 | 100 | 000000000 | 0000 |
| 5/16" | 1/16" | Rockwell C45 | ASME B18.3 | 100 | 000000000 | 0000 |
6-32 | ||||||
| 1/8" | 1/16" | Rockwell C45 | ASME B18.3 | 100 | 000000000 | 00000 |
| 3/16" | 1/16" | Rockwell C45 | ASME B18.3 | 100 | 000000000 | 00000 |
| 1/4" | 1/16" | Rockwell C45 | ASME B18.3 | 100 | 000000000 | 00000 |
6-40 | ||||||
| 1/8" | 1/16" | Rockwell C45 | ASME B18.3 | 50 | 000000000 | 0000 |
| 3/16" | 1/16" | Rockwell C45 | ASME B18.3 | 50 | 000000000 | 0000 |
| 1/4" | 1/16" | Rockwell C45 | ASME B18.3 | 50 | 000000000 | 0000 |
8-32 | ||||||
| 1/8" | 5/64" | Rockwell C45 | ASME B18.3 | 100 | 000000000 | 00000 |
| 3/16" | 5/64" | Rockwell C45 | ASME B18.3 | 100 | 000000000 | 00000 |
| 1/4" | 5/64" | Rockwell C45 | ASME B18.3 | 100 | 000000000 | 00000 |
| 5/16" | 5/64" | Rockwell C45 | ASME B18.3 | 100 | 000000000 | 00000 |
| 3/8" | 5/64" | Rockwell C45 | ASME B18.3 | 100 | 000000000 | 00000 |
| 7/16" | 5/64" | Rockwell C45 | ASME B18.3 | 25 | 000000000 | 00000 |
| 1/2" | 5/64" | Rockwell C45 | ASME B18.3 | 50 | 000000000 | 0000 |
| 3/4" | 5/64" | Rockwell C45 | ASME B18.3 | 50 | 000000000 | 0000 |
| 1" | 5/64" | Rockwell C45 | ASME B18.3 | 50 | 000000000 | 00000 |
10-24 | ||||||
| 1/8" | 3/32" | Rockwell C45 | ASME B18.3 | 25 | 000000000 | 00000 |
| 3/16" | 3/32" | Rockwell C45 | ASME B18.3 | 50 | 000000000 | 0000 |
| 1/4" | 3/32" | Rockwell C45 | ASME B18.3 | 100 | 000000000 | 00000 |
| 5/16" | 3/32" | Rockwell C45 | ASME B18.3 | 100 | 000000000 | 0000 |
| 3/8" | 3/32" | Rockwell C45 | ASME B18.3 | 50 | 000000000 | 0000 |
| 1/2" | 3/32" | Rockwell C45 | ASME B18.3 | 50 | 000000000 | 0000 |
10-32 | ||||||
| 1/8" | 3/32" | Rockwell C45 | ASME B18.3 | 25 | 000000000 | 0000 |
| 3/16" | 3/32" | Rockwell C45 | ASME B18.3 | 100 | 000000000 | 00000 |
| 1/4" | 3/32" | Rockwell C45 | ASME B18.3 | 100 | 000000000 | 00000 |
| 3/8" | 3/32" | Rockwell C45 | ASME B18.3 | 100 | 000000000 | 00000 |
| 7/16" | 3/32" | Rockwell C45 | ASME B18.3 | 50 | 000000000 | 0000 |
| 1/2" | 3/32" | Rockwell C45 | ASME B18.3 | 50 | 000000000 | 0000 |
| 5/8" | 3/32" | Rockwell C45 | ASME B18.3 | 50 | 000000000 | 0000 |
1/4"-20 | ||||||
| 3/16" | 1/8" | Rockwell C45 | ASME B18.3 | 50 | 000000000 | 0000 |
| 1/4" | 1/8" | Rockwell C45 | ASME B18.3 | 50 | 000000000 | 00000 |
| 5/16" | 1/8" | Rockwell C45 | ASME B18.3 | 100 | 000000000 | 00000 |
| 3/8" | 1/8" | Rockwell C45 | ASME B18.3 | 100 | 000000000 | 00000 |
| 7/16" | 1/8" | Rockwell C45 | ASME B18.3 | 50 | 000000000 | 0000 |
| 1/2" | 1/8" | Rockwell C45 | ASME B18.3 | 50 | 000000000 | 0000 |
| 5/8" | 1/8" | Rockwell C45 | ASME B18.3 | 50 | 000000000 | 0000 |
| 3/4" | 1/8" | Rockwell C45 | ASME B18.3 | 50 | 000000000 | 0000 |
| 7/8" | 1/8" | Rockwell C45 | ASME B18.3 | 25 | 000000000 | 0000 |
| 1" | 1/8" | Rockwell C45 | ASME B18.3 | 25 | 000000000 | 0000 |
| 1 1/2" | 1/8" | Rockwell C45 | ASME B18.3 | 10 | 000000000 | 0000 |
| 2" | 1/8" | Rockwell C45 | ASME B18.3 | 10 | 000000000 | 0000 |
1/4"-28 | ||||||
| 3/16" | 1/8" | Rockwell C45 | ASME B18.3 | 50 | 000000000 | 00000 |
| 1/4" | 1/8" | Rockwell C45 | ASME B18.3 | 50 | 000000000 | 00000 |
| 5/16" | 1/8" | Rockwell C45 | ASME B18.3 | 50 | 000000000 | 0000 |
| 3/8" | 1/8" | Rockwell C45 | ASME B18.3 | 50 | 000000000 | 0000 |
| 1/2" | 1/8" | Rockwell C45 | ASME B18.3 | 50 | 000000000 | 0000 |
| 3/4" | 1/8" | Rockwell C45 | ASME B18.3 | 50 | 000000000 | 0000 |
5/16"-18 | ||||||
| 1/4" | 5/32" | Rockwell C45 | ASME B18.3 | 100 | 000000000 | 00000 |
| 5/16" | 5/32" | Rockwell C45 | ASME B18.3 | 50 | 000000000 | 0000 |
| 3/8" | 5/32" | Rockwell C45 | ASME B18.3 | 50 | 000000000 | 0000 |
| 7/16" | 5/32" | Rockwell C45 | ASME B18.3 | 25 | 000000000 | 00000 |
| 1/2" | 5/32" | Rockwell C45 | ASME B18.3 | 50 | 000000000 | 0000 |
| 5/8" | 5/32" | Rockwell C45 | ASME B18.3 | 50 | 000000000 | 00000 |
| 3/4" | 5/32" | Rockwell C45 | ASME B18.3 | 25 | 000000000 | 0000 |
| 1" | 5/32" | Rockwell C45 | ASME B18.3 | 25 | 000000000 | 0000 |
| 1 1/2" | 5/32" | Rockwell C45 | ASME B18.3 | 10 | 000000000 | 0000 |
| 2" | 5/32" | Rockwell C45 | ASME B18.3 | 5 | 000000000 | 0000 |
5/16"-24 | ||||||
| 1/4" | 5/32" | Rockwell C45 | ASME B18.3 | 50 | 000000000 | 00000 |
| 5/16" | 5/32" | Rockwell C45 | ASME B18.3 | 50 | 000000000 | 00000 |
| 3/8" | 5/32" | Rockwell C45 | ASME B18.3 | 50 | 000000000 | 00000 |
| 1/2" | 5/32" | Rockwell C45 | ASME B18.3 | 50 | 000000000 | 00000 |
3/8"-16 | ||||||
| 1/4" | 3/16" | Rockwell C45 | ASME B18.3 | 25 | 000000000 | 0000 |
| 5/16" | 3/16" | Rockwell C45 | ASME B18.3 | 25 | 000000000 | 0000 |
| 3/8" | 3/16" | Rockwell C45 | ASME B18.3 | 50 | 000000000 | 0000 |
| 7/16" | 3/16" | Rockwell C45 | ASME B18.3 | 25 | 000000000 | 00000 |
| 1/2" | 3/16" | Rockwell C45 | ASME B18.3 | 50 | 000000000 | 00000 |
| 5/8" | 3/16" | Rockwell C45 | ASME B18.3 | 25 | 000000000 | 0000 |
| 3/4" | 3/16" | Rockwell C45 | ASME B18.3 | 25 | 000000000 | 0000 |
| 1" | 3/16" | Rockwell C45 | ASME B18.3 | 25 | 000000000 | 0000 |
| 1 1/4" | 3/16" | Rockwell C45 | ASME B18.3 | 25 | 000000000 | 0000 |
| 1 1/2" | 3/16" | Rockwell C45 | ASME B18.3 | 10 | 000000000 | 0000 |
| 2" | 3/16" | Rockwell C45 | ASME B18.3 | 5 | 000000000 | 0000 |
3/8"-24 | ||||||
| 5/16" | 3/16" | Rockwell C45 | ASME B18.3 | 25 | 000000000 | 0000 |
| 3/8" | 3/16" | Rockwell C45 | ASME B18.3 | 50 | 000000000 | 0000 |
| 1/2" | 3/16" | Rockwell C45 | ASME B18.3 | 50 | 000000000 | 0000 |
1/2"-13 | ||||||
| 3/8" | 1/4" | Rockwell C45 | ASME B18.3 | 10 | 000000000 | 0000 |
| 1/2" | 1/4" | Rockwell C45 | ASME B18.3 | 10 | 000000000 | 0000 |
| 5/8" | 1/4" | Rockwell C45 | ASME B18.3 | 10 | 000000000 | 0000 |
| 3/4" | 1/4" | Rockwell C45 | ASME B18.3 | 10 | 000000000 | 0000 |
| 1" | 1/4" | Rockwell C45 | ASME B18.3 | 10 | 000000000 | 0000 |
| 1 3/4" | 1/4" | Rockwell C45 | ASME B18.3 | 5 | 000000000 | 0000 |
| 2" | 1/4" | Rockwell C45 | ASME B18.3 | 5 | 000000000 | 00000 |
1/2"-20 | ||||||
| 3/4" | 1/4" | Rockwell C45 | ASME B18.3 | 5 | 000000000 | 0000 |
| 7/8" | 1/4" | Rockwell C45 | ASME B18.3 | 5 | 000000000 | 0000 |
| 1" | 1/4" | Rockwell C45 | ASME B18.3 | 5 | 000000000 | 0000 |
| 1 1/4" | 1/4" | Rockwell C45 | ASME B18.3 | 5 | 000000000 | 00000 |
| 1 1/2" | 1/4" | Rockwell C45 | ASME B18.3 | 5 | 000000000 | 00000 |
5/8"-11 | ||||||
| 1/2" | 5/16" | Rockwell C45 | ASME B18.3 | 1 | 000000000 | 0000 |
| 5/8" | 5/16" | Rockwell C45 | ASME B18.3 | 5 | 000000000 | 00000 |
| 3/4" | 5/16" | Rockwell C45 | ASME B18.3 | 1 | 000000000 | 0000 |
| 1" | 5/16" | Rockwell C45 | ASME B18.3 | 1 | 000000000 | 0000 |
3/4"-10 | ||||||
| 3/4" | 3/8" | Rockwell C45 | ASME B18.3 | 5 | 000000000 | 0000 |
Metric Alloy Steel Knurl-Grip Cup-Point Set Screws
Alloy steel set screws dig into hard surfaces for a secure hold. They have serrations on the cup edge that grip the material surface to resist loosening. Length listed is the overall length.
For technical drawings and 3-D models, click on a part number.
| Lg., mm | Drive Size, mm | Hardness | Specifications Met | Pkg. Qty. | Pkg. | |
Alloy Steel | ||||||
|---|---|---|---|---|---|---|
M3 × 0.5 mm | ||||||
| 3 | 1.5 | Rockwell C45 | ISO 4029 | 50 | 000000000 | 00000 |
| 4 | 1.5 | Rockwell C45 | ISO 4029 | 50 | 000000000 | 00000 |
| 5 | 1.5 | Rockwell C45 | ISO 4029 | 50 | 000000000 | 00000 |
| 6 | 1.5 | Rockwell C45 | ISO 4029 | 50 | 000000000 | 00000 |
| 8 | 1.5 | Rockwell C45 | ISO 4029 | 25 | 000000000 | 0000 |
M4 × 0.7 mm | ||||||
| 4 | 2 | Rockwell C45 | ISO 4029 | 50 | 000000000 | 00000 |
| 5 | 2 | Rockwell C45 | ISO 4029 | 50 | 000000000 | 00000 |
| 6 | 2 | Rockwell C45 | ISO 4029 | 50 | 000000000 | 00000 |
| 8 | 2 | Rockwell C45 | ISO 4029 | 50 | 000000000 | 00000 |
| 10 | 2 | Rockwell C45 | ISO 4029 | 25 | 000000000 | 0000 |
M5 × 0.8 mm | ||||||
| 5 | 2.5 | Rockwell C45 | ISO 4029 | 50 | 000000000 | 00000 |
| 6 | 2.5 | Rockwell C45 | ISO 4029 | 50 | 000000000 | 00000 |
| 8 | 2.5 | Rockwell C45 | ISO 4029 | 50 | 000000000 | 00000 |
| 10 | 2.5 | Rockwell C45 | ISO 4029 | 50 | 000000000 | 00000 |
M6 × 1 mm | ||||||
| 6 | 3 | Rockwell C45 | ISO 4029 | 50 | 000000000 | 00000 |
| 8 | 3 | Rockwell C45 | ISO 4029 | 50 | 000000000 | 00000 |
| 10 | 3 | Rockwell C45 | ISO 4029 | 50 | 000000000 | 00000 |
| 12 | 3 | Rockwell C45 | ISO 4029 | 50 | 000000000 | 00000 |
| 20 | 3 | Rockwell C45 | ISO 4029 | 25 | 000000000 | 00000 |
M8 × 1.25 mm | ||||||
| 8 | 4 | Rockwell C45 | ISO 4029 | 50 | 000000000 | 00000 |
| 10 | 4 | Rockwell C45 | ISO 4029 | 50 | 000000000 | 00000 |
| 12 | 4 | Rockwell C45 | ISO 4029 | 50 | 000000000 | 00000 |
| 20 | 4 | Rockwell C45 | ISO 4029 | 10 | 000000000 | 0000 |
| 25 | 4 | Rockwell C45 | ISO 4029 | 10 | 000000000 | 0000 |
| 30 | 4 | Rockwell C45 | ISO 4029 | 10 | 000000000 | 0000 |
Stainless Steel Knurl-Grip Cup-Point Set Screws
Made from 18-8 stainless steel, these set screws are chemical resistant and may be mildly magnetic. They have serrations on the cup edge that grip the material surface to resist loosening. Length listed is the overall length.
For technical drawings and 3-D models, click on a part number.
| Lg. | Drive Size | Hardness | Specifications Met | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | ||||||
|---|---|---|---|---|---|---|
4-40 | ||||||
| 1/8" | 0.050" | Rockwell B80 | ASME B18.3 | 50 | 000000000 | 000000 |
| 3/16" | 0.050" | Rockwell B80 | ASME B18.3 | 50 | 000000000 | 00000 |
| 1/4" | 0.050" | Rockwell B80 | ASME B18.3 | 50 | 000000000 | 00000 |
6-32 | ||||||
| 1/8" | 1/16" | Rockwell B80 | ASME B18.3 | 50 | 000000000 | 00000 |
| 3/16" | 1/16" | Rockwell B80 | ASME B18.3 | 50 | 000000000 | 00000 |
| 1/4" | 1/16" | Rockwell B80 | ASME B18.3 | 50 | 000000000 | 0000 |
| 3/8" | 1/16" | Rockwell B80 | ASME B18.3 | 50 | 000000000 | 0000 |
8-32 | ||||||
| 1/8" | 5/64" | Rockwell B80 | ASME B18.3 | 50 | 000000000 | 00000 |
| 3/16" | 5/64" | Rockwell B80 | ASME B18.3 | 50 | 000000000 | 00000 |
| 1/4" | 5/64" | Rockwell B80 | ASME B18.3 | 50 | 000000000 | 0000 |
| 3/8" | 5/64" | Rockwell B80 | ASME B18.3 | 50 | 000000000 | 0000 |
| 1/2" | 5/64" | Rockwell B80 | ASME B18.3 | 25 | 000000000 | 0000 |
10-24 | ||||||
| 3/16" | 3/32" | Rockwell B80 | ASME B18.3 | 25 | 000000000 | 0000 |
| 1/4" | 3/32" | Rockwell B80 | ASME B18.3 | 50 | 000000000 | 0000 |
| 3/8" | 3/32" | Rockwell B80 | ASME B18.3 | 50 | 000000000 | 00000 |
10-32 | ||||||
| 1/4" | 3/32" | Rockwell B80 | ASME B18.3 | 50 | 000000000 | 0000 |
| 3/8" | 3/32" | Rockwell B80 | ASME B18.3 | 25 | 000000000 | 0000 |
| 1/2" | 3/32" | Rockwell B80 | ASME B18.3 | 25 | 000000000 | 00000 |
1/4"-20 | ||||||
| 1/4" | 1/8" | Rockwell B80 | ASME B18.3 | 50 | 000000000 | 0000 |
| 3/8" | 1/8" | Rockwell B80 | ASME B18.3 | 25 | 000000000 | 0000 |
| 1/2" | 1/8" | Rockwell B80 | ASME B18.3 | 25 | 000000000 | 00000 |
| 3/4" | 1/8" | Rockwell B80 | ASME B18.3 | 10 | 000000000 | 0000 |
| 1" | 1/8" | Rockwell B80 | ASME B18.3 | 10 | 000000000 | 0000 |
5/16"-18 | ||||||
| 1/4" | 5/32" | Rockwell B80 | ASME B18.3 | 10 | 000000000 | 0000 |
| 5/16" | 5/32" | Rockwell B80 | ASME B18.3 | 10 | 000000000 | 0000 |
| 3/8" | 5/32" | Rockwell B80 | ASME B18.3 | 10 | 000000000 | 0000 |
| 1/2" | 5/32" | Rockwell B80 | ASME B18.3 | 10 | 000000000 | 0000 |
3/8"-16 | ||||||
| 3/8" | 3/16" | Rockwell B80 | ASME B18.3 | 10 | 000000000 | 0000 |
| 1/2" | 3/16" | Rockwell B80 | ASME B18.3 | 10 | 000000000 | 00000 |
| 5/8" | 3/16" | Rockwell B80 | ASME B18.3 | 10 | 000000000 | 00000 |
| 3/4" | 3/16" | Rockwell B80 | ASME B18.3 | 10 | 000000000 | 00000 |
Metric Stainless Steel Knurl-Grip Cup-Point Set Screws
18-8 stainless steel set screws are chemical resistant and may be mildly magnetic. They have serrations on the cup edge that grip the material surface to resist loosening. Length listed is the overall length.
For technical drawings and 3-D models, click on a part number.
| Lg., mm | Drive Size, mm | Hardness | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||
|---|---|---|---|---|---|
M3 × 0.5 mm | |||||
| 3 | 1.5 | Rockwell B80 | 25 | 000000000 | 00000 |
| 4 | 1.5 | Rockwell B80 | 25 | 000000000 | 0000 |
| 5 | 1.5 | Rockwell B80 | 25 | 000000000 | 0000 |
M4 × 0.7 mm | |||||
| 4 | 2 | Rockwell B80 | 25 | 000000000 | 0000 |
| 5 | 2 | Rockwell B80 | 25 | 000000000 | 0000 |
| 6 | 2 | Rockwell B80 | 25 | 000000000 | 0000 |
M5 × 0.8 mm | |||||
| 5 | 2.5 | Rockwell B80 | 25 | 000000000 | 0000 |
| 6 | 2.5 | Rockwell B80 | 25 | 000000000 | 0000 |
| 10 | 2.5 | Rockwell B80 | 25 | 000000000 | 0000 |
M6 × 1 mm | |||||
| 6 | 3 | Rockwell B80 | 25 | 000000000 | 0000 |
| 10 | 3 | Rockwell B80 | 25 | 000000000 | 0000 |
| 12 | 3 | Rockwell B80 | 25 | 000000000 | 0000 |
M8 × 1.25 mm | |||||
| 8 | 4 | Rockwell B80 | 10 | 000000000 | 0000 |
| 10 | 4 | Rockwell B80 | 10 | 000000000 | 0000 |
| 12 | 4 | Rockwell B80 | 10 | 000000000 | 0000 |
Set Screw Assortments
Cup Point with Serrations
Set screws exert pressure at the tip to hold objects in place. All have a cup point with a thin edge that digs into the contact surface for a secure hold. Length listed is the overall length.
Set screws with serrations on the cup edge grip the material surface to resist loosening.
Black-oxide alloy steel screws resist corrosion in dry environments.
| Number of Pieces | Screw Sizes Included | Locking Type | Drive Style | Container Type | Each | |
Inch | ||||||
|---|---|---|---|---|---|---|
Black-Oxide Alloy Steel | ||||||
| 300 | 8-32 to 1/2"-13 in 3/16" to 1/2" Lengths | Serrations | Hex | Plastic Box | 000000000 | 000000 |