Rodger
True Classic
I am in the process of replating or replacing most of the fasteners on my K20 restomod. In disassembling the car, I have come across three basic different ways that things are bolted together.
1. Hex head bolt or nut with a split type lock washer and a flat washer under that.
2. Hex head bolt or nut with a serrated tooth type lock washer (some internal, some external) and a flat or fender washer under that.
3. Flange type hex nut with built in serrations in the flange. Sometimes there is a fender washer under these but not always.
On my K20A2 engine, Honda seems to use almost exclusively hex head bolts with an integral flange that is flat underneath. No lock or other washers. Since this engine is only about 13 years old, I would venture to say that it is more up to date with the current state of the art in fastener technology.
I have seen a couple of threads where Bernice has made a convincing case for the poor performance of split lock washers. How do tooth washers compare to split washer performance? Why are there internal and external tooth washers and is one more indicated than the other in certain applications? Are lock washers even needed? :confuse2: I am a dentist (prosthodontist) by day and I do a lot of dental implant restorations. They are all clamped together by small screws at specified torque values (yes, we use little tiny torque wrenches) and there is nary a lock or other washer to be seen.
I have looked at websites for purchasing new fasteners and have noted the availability of all these types of washers as well as flange nuts and bolts, with and without serrations. What would be the optimum choice for new fasteners for the X? Should I follow Honda's lead and use hex head flange bolts? If so, with or without serrations?
I just want to use the best, current technology as I put the X back together. Thanks in advance for educating me as there are a lot of really smart folks on this forum that I have already learned a ton from.:worship:
1. Hex head bolt or nut with a split type lock washer and a flat washer under that.
2. Hex head bolt or nut with a serrated tooth type lock washer (some internal, some external) and a flat or fender washer under that.
3. Flange type hex nut with built in serrations in the flange. Sometimes there is a fender washer under these but not always.
On my K20A2 engine, Honda seems to use almost exclusively hex head bolts with an integral flange that is flat underneath. No lock or other washers. Since this engine is only about 13 years old, I would venture to say that it is more up to date with the current state of the art in fastener technology.
I have seen a couple of threads where Bernice has made a convincing case for the poor performance of split lock washers. How do tooth washers compare to split washer performance? Why are there internal and external tooth washers and is one more indicated than the other in certain applications? Are lock washers even needed? :confuse2: I am a dentist (prosthodontist) by day and I do a lot of dental implant restorations. They are all clamped together by small screws at specified torque values (yes, we use little tiny torque wrenches) and there is nary a lock or other washer to be seen.
I have looked at websites for purchasing new fasteners and have noted the availability of all these types of washers as well as flange nuts and bolts, with and without serrations. What would be the optimum choice for new fasteners for the X? Should I follow Honda's lead and use hex head flange bolts? If so, with or without serrations?
I just want to use the best, current technology as I put the X back together. Thanks in advance for educating me as there are a lot of really smart folks on this forum that I have already learned a ton from.:worship:
