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.

Thread these screws over a pin or another set screw to lock it in place, or over a spring to adjust tension. You can also peek through the hollow center to inspect locked parts. Made of alloy steel, these screws are strong enough to hold components without wearing down. Also known as jam set screws.

Made of alloy steel, these screws are strong enough to hold components without wearing down. The tip has thin edges that dig into surfaces for a secure hold. They often lock gears, pulleys, and other transmission components onto shafts.