Rayco CMM Fixture Plate Rayco cast aluminum fixture plates are the toughest plates on the market, all of their plates are Hard-Coat Anodized for added strength. We offer plates for all size machines and applications. RAYCO CMM FIXTURE has been the leading CMM Fixture brand and in business for 33 years. Features include... 12" x 12" x 0.5" Plate 1/4-20 threaded holes spaced apart, 0.5" center to center Engraved Numbers on X-Axis Engraved Letters on Y-Axis Mounting Holes can be added to this plate for your specific CMM at no additional charge. This FREE service from Rayco usually adds 1-2 days to the lead time before shipping.