Description
- The AC-TK28 clamp knob is an original design for the Ultralight AC-CSF28 clamps.
- They are more stylish than the Ultralight AC-TK and have a 1/4"-28 fine thread.
- Made out of 6061 T6 aircraft-grade aluminum with Type III anodizing.
- Comes in selected colors, black is Type III anodizing and color is Type II.
- Will work in the harshest of environments, time-proven and built to last.
The Ultralight AC-TK28 is a durable replacement knob for any 1/4"-28 fine-thread ball clamps. It offers a secure grip and reliable tightening for both underwater photography and professional cinema setups and is ideal for replacing worn hardware.




















Thomas (verified owner) –
Having the ability to color code my existing clamps with colored knobs is great for keeping my various rigs sorted out when packing. I feel the price was fair, and my order shipped quickly! What more could I ask for? It will be nice if Ultralight adds one or two more colors in the fine thread knobs.