|
The only real way to buy any critical fastener is to specify the specification/standard required and buy them for 'qualified' suppliers.
For example we always buy Unbrako Socket Cap Heads for CV joints from a local supplier (NSSS) who have ISO 9001 Quality Approval.
Whilst not traceable to Aero standards it is a pretty good bet that we are buying a high quality fastener from an reliable supplier.
It is interesting that Unbrako is now owned by Deepak Fasteners in India but still seem to be produce high quality parts.
I imagine that the issue with case savers is that they are manufactured in small batches (by fastener standards) by companies with limited inspection and quality control and there will always be a risk.
I prefer to stick with Timerserts and Bigserts for just this reason.
|