I used one of Poulters set ups from a irish race as a base for my indoors and outdoors carpet and astro.
Axel pins... I use a drop of shoe goo in the slot then push in the pin and smooth/cover it again with goo.
This works great and you can remove and insert them again and again without problems.
Make sure you insert them at an angle so you get some goo between the pin and hex
|