All of TR's pillars come as standard with undercut or non standard without undercut. The advantages of undercut are that there is no need for washers in assembly and they offer a flush fit. This data sheet details the range of materials and sizes the spacers and pillars are available in.
Promoted content: Does social media work for engineers – and how can you make it work for you?
So in addition to doing their own job, engineers are expected to do the marketing department´s work for them as well? Sorry, wait a minute, I know the...