Abstract: A format-part fastener for attaching an interchangeable format part to a machine frame includes a first connecting element having a mounting stud that extends along the stud's axis and that has an angled face that defines an acute angle relative to the stud's axis. A second connecting element has a locating sleeve for receiving the mounting stud. The locating sleeve has walls forming a slot. When used to attach a format part, a spring cotter's undulating section surrounds part of the locating sleeve's circumference while the slot supports the spring cotter's shank against the mounting stud's angled face. This converts some of the spring cotter's radial force into an axially directed force along the stud's axis.

Abstract: A format-part fastener for attaching an interchangeable format part to a machine frame includes a first connecting element having a mounting stud that extends along the stud's axis and that has an angled face that defines an acute angle relative to the stud's axis. A second connecting element has a locating sleeve for receiving the mounting stud. The locating sleeve has walls forming a slot. When used to attach a format part, a spring cotter's undulating section surrounds part of the locating sleeve's circumference while the slot supports the spring cotter's shank against the mounting stud's angled face. This converts some of the spring cotter's radial force into an axially directed force along the stud's axis.