Sems Screws
 SEMS Screws are a style of machine screw that comes with a pre-assembled free-spinning lockwasher.
Available in the following finishes and sizes:
Plain, Zinc Plated, Hot Dipped Galvanized, Black Oxide, Silicone Bronze, Yellow Zinc, Aluminum, 316 SS, and 304/18-8/410 SS.
| 4-40 x1/4 |
8-32 x 1 1/4 |
| 4-40 x 5/16 |
10-24 x 3/8 |
| 4-40 x 3/8 |
10-24 x 1/2 |
| 4-40 x 1/2 |
10-24 x 5/8 |
| 4-40 x 5/8 |
10-24 x 3/4 |
| 4-40 x 3/4 |
10-32 x 1/4 |
| 6-32 x 1/4 |
10-32 x 3/8 |
| 6-32 x 5/16 |
10-32 x 1/2 |
| 6-32 x 3/8 |
10-32 x 5/8 |
| 6-32 x 1/2 |
10-32 x 3/4 |
| 6-32 x 5/8 |
1/4-20 x 3/8 |
| 6-32 x 3/4 |
1/4-20 x 1/2 |
| 6-32 x 1 |
1/4-20 x 5/8 |
| 6-32 x 1 1/4 |
1/4-20 x 3/4 |
| 8-32 x 1/4 |
1/4-20 x 1 |
| 8-32 x 5/16 |
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| 8-32 x 3/8 |
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| 8-32 x 1/2 |
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| 8-32 x 5/8 |
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| 8-32 x 3/4 |
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| 8-32 x 1 |
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