Instructables

Step 10: Step 3: Bumper -Bolt

The bolt you select for holding the wheels on is very important. You want a bolt with a fairly flat head as it will be sticking up some on the footrest, and you don't want your foot slamming into a metal bolt every time you are seated into a wheelchair. The bolt needs to be long enough to go through the footrest and the skate wheel such that it can be secured with a nut. The bolt also needs to fit in the footrest drilled hole.