Magrail TL 3/8" studs and T bolts, 10 each per bag
Featured positive reviews:
The studs work great in the magrail's. You can tighten them down to where your sockets don't move or leave them a little loose so you can slid the sockets a little. Very easy to do. Just put them in a magrail and spin the studs down and add sockets. The studs or pegs and magrails are expensive but they work great and look great.