Rigging hardware 83 Stand maintenance Modern stands are made of stainless steel and aluminum. Stainless steel stands are extremely weather-resistant. A well-made stand will not rust or corrode. When stands get muddy, they should be cleaned so that dirt does not get inside, between the risers. Wipe each riser down with a rag or towel. If a riser starts to bind, lubricate it with silicone spray. Occasionally, the Allen screws that secure the bonnet castings and the riser castings to the tube parts of a stand get loose and the castings come off. It is a simple matter to push the castings back into place and tighten down the Allen screws. Be sure to keep the castings tight. If the casting comes off while you are raising a light, the riser will separate from the stand and you'll wind up balancing the light on the riser like an acrobat with teacups (except that a 4k par costs a little more than a tea cup when it shatters on the ground). RIGGING HARDWARE Baby and junior nail-on plates A nail-on plate, also called a wall plate or pigeon plate (Figure 4.10), mounts to a surface with screws. Use a cordless electric drill with a Phillips bit and wood or drywall screws. The plate can