Oversize, Marlin lever-action chromoly steel quick take down screws allow for easy lever removal for a thorough cleaning, plus makes it easy to swap out standard levers for larger loop levers for gloved hands or cowboy action shooting. Large diameter, six points provide a non-slip grasp during installation and removal. Replaces the original, factory lever screw without alteration. Made of 4140 chromoly steel with a black nitride coating with Marlin proprietary thread pitch .210-28.
Does not fit Marlin 39A rifles
Other lever parts https://rangerpointstore.com/medium-loop-levers-parts/