04-16-2010, 06:38 AM
Join Date: Nov 2008
Location: Houston, TX
Total Cats: 26
Being in the fastener business myself I can help here.
There are 5 specific design variables that go into a flat washer:
OD (outside diameter)
ID (inside diameter)
While this may sound simple, the part has to be designed for the constraints involved. While many washers are an off the shelf part, this one likely does not fit any spec, and is custom made. Custom made washers come directly from bar stock, and our nicer ones are actually CNC produced. That's right, CNC washers. This labor/overhead cost, combined with a more expensive material (doesn't look like cheap ASTM A193) to me, and what is apparently a catchy custom coating procedure, can easily add up to $13.
He probably had those custom made in which case no, you won't find one. But the only way to know for sure is to buy just one, hit it with the calipers, break it in half, and report back. I'll check it against our part list and see what we've got. If it is a standard size, we'll have them in B7 and L7, plain, zinc plated and teflon coated, and possibly in a few other materials. I get a considerable discount at work considering my wife is in charge of inventory management