The 12L14 carbon steel slotted washer has a black oxide finish and is made in USA. The slotted washer has a C-shaped slot that allows it to be installed and removed from an assembly without removing a mating fastener. The 12L14 carbon steel grade provides strength. The black oxide finish offers mild corrosion resistance and lubricity.

Washers distribute the load of a fastener across a surface and can also be used as spacers, springs, shims, or locking devices. Several different washer styles fit a variety of application and installation requirements. The most common style is a flat washer. More specialized washers provide additional benefits. A cup washer, for example, helps protect fasteners from electrical currents, while a lock washer offers additional security in an assembled workpiece.