A similar style of Storm Brake, Rail Brakes incorporate a hardened tool steel shoe, which is applied directly to the top of a rail head by spring force. Rail brakes are sill-mounted with shims and plated emergency release bolts. The spring stack can be varied to deliver the required holding force. Lubrication points are provided at the head/shoe mating surfaces. Features and options include a release indicating/interlock limit switch, special alloys, coatings and custom mountings.