Slotted shim stock from Grainger can help solve alignment and leveling issues. Slotted shim stock is available in a variety of thicknesses to provide an economical and accurate spacing solution for many applications. Use rust-resistant and corrosion-resistant stainless steel slotted shim stock for spacing on motors, pumps, generators and other plant machinery. Slotted shim stock conforms to standard bolt and stud sizes, and a tab on the top of the steel shim makes installation easier and safer.