Dynemech Machine Base Mounts - Series SLM Dynemech Machine Base Mounts, SLM Series Anti Vibration Mounts having square/rectangular base, developed in cast iron body allow anchor-free machinery installations. Type F - The bolt is fixed with the mount body. Two free nuts and a washer is provided. Machine base rests over the bottom nut and washer. Levelling is done by rotating the bottom nut. Machine base must have plain holes. The top nut is used for clamping after the levelling is completed.