Two industrial suppliers

If you are in need of either hard-to-find parts and/or parts in quantity, then McMaster-Carr or MSC Direct may be you ticket. Both sell a range of items: fasteners, electrical components, raw materials, paint, and even janitorial supplies. Prices vary, some items are less expensive than your average Home Depot, especially in quantity, others that are hard to find are spendy. Either way, if you like hardware stores, these are great places. Shipping costs are reasonable and the items arrive within a day or two.