About Shoulder Screws
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Metric 18-8 Stainless Steel Shoulder Screws
Made from 18-8 stainless steel, these shoulder screws have good chemical resistance and may be mildly magnetic. A standard shoulder with an undersized tolerance allows them to fit most machinery and equipment. They’re often used to guide or align components, and as an axle or pivot point.
Passivated stainless steel screws have added protection against oxidation and corrosion.
For technical drawings and 3-D models, click on a part number.
Metric 18-8 Stainless Steel Precision Shoulder Screws
Made of 18-8 stainless steel, these shoulder screws have good corrosion resistance and may be mildly magnetic. With a shoulder diameter that is twice as precise as our general purpose shoulder screws, they provide smooth, accurate movement. Use them where precision matters, such as in measuring devices, optical fixtures, and laboratory equipment.
For technical drawings and 3-D models, click on a part number.
Each | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Shoulder Lg., mm | Thread Size  | Thread Pitch, mm | Thread Lg., mm | Head Dia., mm | Head Ht., mm | Tensile Strength, psi | Drive Size, mm | 1-4 | 5-Up | |
3.5 mm Shoulder Dia.—Precise Fit (-0.025 to 0 mm Dia. Tolerance) | ||||||||||
| 4 | M2.5 | 0.45 | 4 | 5 | 2 | 70,000 | 2 | 000000000 | 00000 | 00000 |
| 5 | M2.5 | 0.45 | 4 | 5 | 2 | 70,000 | 2 | 000000000 | 0000 | 0000 |
| 6 | M2.5 | 0.45 | 4 | 5 | 2 | 70,000 | 2 | 000000000 | 0000 | 0000 |
| 8 | M2.5 | 0.45 | 4 | 5 | 2 | 70,000 | 2 | 000000000 | 0000 | 0000 |
| 10 | M2.5 | 0.45 | 4 | 5 | 2 | 70,000 | 2 | 000000000 | 0000 | 0000 |
| 12 | M2.5 | 0.45 | 4 | 5 | 2 | 70,000 | 2 | 000000000 | 0000 | 0000 |
| 14 | M2.5 | 0.45 | 4 | 5 | 2 | 70,000 | 2 | 000000000 | 0000 | 0000 |
| 15 | M2.5 | 0.45 | 4 | 5 | 2 | 70,000 | 2 | 000000000 | 0000 | 0000 |
| 22 | M2.5 | 0.45 | 4 | 5 | 2 | 70,000 | 2 | 000000000 | 0000 | 0000 |
| 30 | M2.5 | 0.45 | 4 | 5 | 2 | 70,000 | 2 | 000000000 | 0000 | 0000 |