FPS Super Mafer Clamp: Mount Lights and Monitors Safely

Quick answer

Clamp the FPS Super Mafer Clamp onto a rigid, load-rated edge or pipe, tighten until the jaws bite without crushing the surface, then attach your light or monitor to the 5/8-inch baby pin or the 1/4-inch-20 side thread. Test the whole rig by hand before you walk away.

Step-by-step Mafer clamp mounting

1. Inspect the mounting surface: Press on the pipe, door, or set piece with your hand. If it flexes, rattles, or feels hollow, pick another location. Common mistake: clamping to a lightweight door or hollow flat that looks solid but will sag or tear under load. If the surface moves under hand pressure, do not clamp to it.
2. Open the jaws and seat the clamp: Squeeze the spring handles and slide the jaws over the edge so both pads contact flat surfaces. Keep the clamp body square to the edge rather than biting at an angle. Common mistake: letting one jaw catch only the corner of a pipe, which reduces grip and can twist. Both jaws should sit flush before you tighten anything.
3. Tighten until the jaws bite: Close the clamp until the spring tension holds it firmly. Do not overcompress the spring or use tools to force it. Check that the clamp cannot rotate by hand. Common mistake: assuming a tight-feeling clamp is secure without testing rotation. Test rotation by hand before attaching any accessory.
4. Attach the accessory to the correct mount: For a light or flag with a baby-pin receiver, slide it onto the 5/8-inch pin and tighten its locking knob. For a monitor or cage accessory, thread it onto the 1/4-inch-20 side thread and snug it by hand. Common mistake: cross-threading the 1/4-inch-20 screw or leaving the baby-pin receiver loose. Match the accessory receiver to the mount, then tighten both connections.
5. Balance and test the full rig: Support the accessory with one hand while you gently push and pull the clamp body. Look for movement at the jaws, the pin, and the accessory connection. Reposition the clamp or remove the accessory if anything shifts. Common mistake: skipping the test because the clamp felt tight earlier. A rig that moves during a hand test will move more once the light or monitor is adjusted on set.
6. Add a safety tether for overhead use: If the clamp is above head height or over a walkway, loop a rated safety tether from the accessory or clamp body to a separate structural point. Common mistake: relying on the clamp alone for overhead safety. Overhead mounting always needs a secondary retention point.

Product facts

• FPS Super Mafer Clamp with 5/8" and 1/4" Pin - Black: Heavy-duty spring clamp with a built-in 5/8-inch baby pin and a 1/4-inch-20 thread on the side. Gives you two mounting options from one clamp, so you can hang a small light on the pin and a monitor or accessory on the thread without adding another grip head.