I am not sure I understand your question. However the standard ar trigger pins are .1554 and have grooves that the fire control group fits into when installed. The notch closest to the end of the pins goes towards the right side of the receiver or shall I say passenger side. If they are installed incorrectly, notch close to the left they can walk.
I have several sets of kns antiwalk trigger pins on ar rifles. They are mainly designed for receivers that the trigger pin holes are enlarged due to prolonged use and the stock trigger pins moving or walking during firing. This is more so seen on rifles that have full auto capability, and have been ran alot. The pins are designed to provide a captured setup that will not walk. They do that job really well. The .1555 pins are designed a bit larger for fit in receivers that are even more worn, or for certain triggers that require them like the rock river match 2 stage. They will be a tight fit in a .1554 hole, and can be used if desired for an extra tight fit. So from what I know you do not need the kns to make the timney work, however they are a good preventive maintenance tool, and cheap insurance that prevents issues. Just purchase the correct size listed by timney for use with their trigger.
Hope that answers your question.