Shimpo FG-M6FLM50U Grip Adapter (50mm wide film grip). Shimpo Film Grip 100 lb Capacity, M6 Thread, Accepts Samples to 10 mm Thick 50 mm Wide, These heavy-duty, spring-loaded grips have serrated jaws for handling samples up to 0.39" (10 mm) thick and 1.97" (50 mm). Shimpo parts and accessories.