Round Bar, Nominal Bar, Pitch Diameter Bar are in the group Raw Materials. In the context of fasteners, raw materials are the raw rod or wire which is the primary input into the machinery used to manufacture the fasteners. In this context, Raw Materials could be rolled or polished rod, square or rectangular bar, key stock, or drill rod.
Round Bar Diameters
Round Bar are available on the FCH Network with Imperial/US diameters that range from #1 to 6 and with Metric diameters that range from M3 to M65.
Round Bar are available on the FCH Network in materials that range from Steel to Resin (Phenolic, etc.)