Metric Socket Shoulder Cap Screws

Metric socket shoulder cap screws are often called shoulder bolts or shoulder screws due to the key component that sets them apart from the socket product family- the shoulder. A metric socket shoulder screw has a raised cylindrical head that is often knurled, the same head design as found in metric socket head cap screws. Installation is completed the same too with a hexagon drive tool, such as a hex key. Directly below the bolt head is the key element, an unthreaded section or the shoulder. Lastly, a threaded shaft is found at the far end of the bolt.  Metric socket shoulder cap screws are most commonly utilized in mechanical applications that require a pivot point, guide pin, or extra spacing. The unthreaded shoulder allows for components to rotate around it, yet maintain consistent connection in place.