It says they are b.to b. But if you need special fasteners, go there or call them. The Germay drive store is a GO-TO spot for all my stainless supplies. The personal are first class professionals.After 7 months and spending thousands in your store, you changed it up. So, lets see, there is triangle fastener, lily fastener, lowes, home depot, and true value. Your not competitive so you loose.