Precision Ground Dowel Pins are used in a variety of applications and are generally made to fractional diameters and lengths. Dowel Pins are machined with a chamfer on one end and a radius on the other for easy installation. Dowels are made from 4037 Alloy Steel, 303 and 316 Stainless Steel, and 360 Brass. All Stainless and Brass Dowels are generally non-magnetic and corrosion resistant, however, they are not very hard and can be bent or dented easily. Hardened ground Alloy Steel Dowel Pins do not bend, dent, or break very easily because they are case hardened to Rockwell HRC 60 and have a core hardness from HRC 52-58. Alloy Dowel Pins are excellent for applications where high strength is required. Though these pins are not corrosion resistant they can be coated with a black oxide finish to help reduce their tendency to rust.

A set screw is generally used to secure one object within another. The set screw passes through a threaded hole in the outer object and is tightened against the inner object to prevent it from moving relative to the outer object. Exerting its clamping force through the bottom tip of the screw that projects through the hole rather than with a larger head that remains outside. This type of screw is used to prevent relative motion between two rotating parts, such as the movement of pulley on a shaft.