Detail of Nord-Lock Washer #1

http://www.nord-lock.com/default.asp?url=2.16.37

Supposed to be better than nylocks, loc-tite, safety-wire, etc. Since these bolts will be hidden under the CVs, I have no way of checking on them unless I disassemble them. They cost 50 cents per washer, but McMaster-Carr doesn't sell proper 10mm washers, only 3/8" size, which would probably work, but doesn't fit over the unthreaded portion of bolt. If using these on a free bolt, you're supposed to place a washer under the bolt head and another under the nut. Also, mounting surface must not be hardened greater than the hardness of the washers, as they need to be able to "bite". ALso available in stainless steel.