Yamaha Bolt, Hexagon Socket Head - 90110-06218-00. Precision-Engineered Yamaha Bolt for Secure Fastening. The Yamaha Bolt, Hexagon Socket Head - 90110-06218-00 is a high-quality fastening solution designed to ensure a secure and durable connection in your Yamaha engine. This OEM-grade bolt features a hexagonal socket head for easy installation and removal, offering maximum strength and reliability for engine repairs and maintenance. Constructed with corrosion-resistant materials, it is suitable