Yamaha Bolt, Button Head - 92012-10016-00. Reliable and Durable Fastening Solution for Your Yamaha Engine. The Yamaha Bolt, Button Head - 92012-10016-00 is an essential fastening component designed for various Yamaha engines. Featuring a sleek, low-profile button head, this bolt provides both aesthetic appeal and functional durability. Made to withstand the harsh conditions of marine environments, this high-quality bolt ensures that your engine parts remain securely in place, even in the most de