Aviall Product Catalog And Source Book Page 184 Hardware, Hose & Fittings

CHERRYMAX RIVETS CHERRY RIVETS aviall.com North America and AOG 1.800.AVIALL.1 International Sales 1.800.AVIALL.3 or +1 972.586.1985 184 CherryMAX Rivet Features The CherryMAX rivet is the most reliable, high strength structural fastener with visual inspectability in the world today. It features the "Safe-lock" locking collar for more reliable joint integrity. Meets requirements of PS-CMR-3000. CherryMAX Rivet consists of four components assembled as a single unit: 1. A fully serrated stem with break notch, shear-ring and integral grip adjustment cone. 2. A driving anvil to insure a visible mechanical lock with each fastener installation. 3. A separate, visible and inspectable locking collar that mechanically locks the stem to the rivet sleeve. 4. A rivet sleeve with recess in the head to receive the locking collar. Covered by U.S. Patent No. 4012984 1. The CherryMAX rivet is inserted into the prepared hole. The pulling head (installation tool) is slipped over the rivet's stem. Applying a firm, steady pressure, which seats the rivet head, the installation tool is then actuated. 2. The pulling head holds the rivet sleeve in place as it begins to pull the rivet stem thru the rivet sleeve. This pulling action causes the stem shear ring to upset the rivet sleeve and form the "bulbed" blind head. 3. The continued pulling action of the installation tool causes the stem shear ring to shear from the main body of the stem as the stem continues to move thru the rivet sleeve. This action allows the fastener to accommodate a minimum of 1 /16" variation in structure thickness. The locking collar then contacts the driving anvil. As the stem continues to be pulled by the action of the installation tool, the "Safe-lock" locking collar deforms into the rivet sleeve head recess. Formation of the rivet sleeve's "bulbed" blind head is complete. 4. The "Safe-lock" locking collar fills the rivet sleeve head recess, locking the stem and rivet sleeve securely together. Continued pulling by the installation tool causes the stem to fracture at the break notch, providing a flush, burr-free, inspectable installation. Installation

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