Mine are all steel with brass washers. If you want cool, and eliminate the need for a wrench, get a set of Antler Limb Bolts. Some are real Antler, some are cast, with carvings on them. They usually go for around $45 and up, but they pay for themselves if you have to take the bow down often. They really dress a bow up too. I love mine. There are several Sponsors that can fix you up, but I only know "SticShooter" from personal experience, and he does great work. Look in the Sponsors classifieds for his handle and shoot him a PM.