A sash lock assembly comprises a window sash frame component, a sash lock having a sash body, and at least one fastener. The sash lock body is mounted on a top of the window sash frame component. The sash lock body includes at least one fastener passage. One exemplary sash lock assembly has the at least one fastener is installed from a rear of the sash lock body, through the at least one angled fastener passage, and into the top of the window sash frame component to secure the sash lock body to the window sash frame component and conceal the at least one fastener is from view without applying an additional cover. One exemplary sash lock assembly has at least one mounting projection that fits within at least one opening in the top of the window sash frame component.