Hillman 5/16 in. D X 1-1/4 in. L Heat Treated Steel Hex Head Cap Screw 100 pk 10-00-001-1324 and other soft materials The Friction Cam mechanism

Hillman 5 16 in. D X 1 1 4 in. L Heat Treated Steel Hex Head Cap Screw 100 pk 10 00 001 1324 and other soft materials The Friction Cam mechanism and other soft materials Great educational tool for children on your first turn start your train by placing a domino that matches the engine in the starter hub slot closest to you the matching side must be placed towards the engine no match draw a domino from the boneyard draw a match play it immediately still not a match keep it in your hand on subsequent turns add a playable domino to your train the mexican train or any open trains a domino is playable when it matches the end of the train youre adding to no playable domino Tighten with a wrench or a drill Hex cap screws are bolts with hexagonal heads and machine threads for use with a nut or in a tapped hole