Great looking kits for converting Bonanza cowlings to the superior MilSpec C-Lock fasteners. Convert any Bonanza main engine cowling from the original Dzus fasteners  to the heavy duty MilSpec 4000 series C-Locks. Convert early Bonanza gill (cheek panels from Airloc to the MilSpec 2700 series fasteners. Convert later Bonanza gill (cheek) panels to the heavy duty MilSpec 4000 series C-Locks.

All kits are stainless steel. Slotted or Phillips head options available, please specify when ordering. Simple installation. Instructions and tips included with each kit. Main and cheek can be done in less than 5 hours. All kits include a Form 337 for field approval. STC approval.