These set screws make the finest adjustments of any we sell. With ultra-fine threads, these screws are found on measuring devices and photonic equipment, where minute adjustments and tight tolerances are critical. They also fine-tune sensors on automated equipment and ensure repeatable positioning on jigs and fixtures. Generally used in dry, controlled environments, the alloy steel tip can oxidize in wet or outdoor environments.

The most corrosion-resistant ball-tip set screws we offer. Made of stainless steel, they won't rust, but they're not as strong as alloy steel. These screws are used to keep pressure consistent on workpieces that aren't fully flat or parallel. A rolling ball on the tip maintains contact and swivels 360° to make small adjustments without loosening the screw.