A stock of material that is one foot or greater in length, and from which shaft keys are made. We manufacture keystock to suit every application need you have, in every size, grade and tolerance imaginable. Available in stocked standard sizes or custom made to your specifications. Moltrup key stock is tightly toleranced material designed to provide a tight, Interference fit when a class 2 fit is desired. MAK-A-KEY Key Stock, Imperial Moltrup Oversized, 5/8 in Width, 5/8 in Height, 1 ft Length, Medium Carbon/Alloy Steel, Plain, Square, 90 HRB Hardness