Posted in Web Lock nuts requiring a keyway (inch) – AN-32 July 12, 2019 Product tables +. Lock nuts requiring a keyway (metric) Lock nuts requiring a keyway (inch) MB(L) lock washers; W inch lock washers; MS locking clips; PL inch locking plates : https://www.skf.com/us/products/bearings-units-housings/bearing-accessories/lock-nuts/requiring-keyway/n-and-an-inch-lock-nuts/index.html?designation=AN-32