I would like to pimp my system with colored T-knobs for my clamps:

https://www.bhphotovideo.com/c/product/1595469-REG/ultralight_ac_tk_sr_splashy_red_t_knob_for.html

However, I am not sure if they would fit on my clamps from H2OTools:

unterwasser-fotografieren.de

H2o-Tools Kugel-Klammer Schwarz - unterwasser-fotografier...

Blitzarm

Any idea if they would fit? I am not sure if the H2O-Tools are maybe metric (ultralight are us/inch) or have another thread pitch)?

Thanks for your help,

Jens

30 minutes ago, Jens H said:

I would like to pimp my system with colored T-knobs for my clamps:

https://www.bhphotovideo.com/c/product/1595469-REG/ultralight_ac_tk_sr_splashy_red_t_knob_for.html

However, I am not sure if they would fit on my clamps from H2OTools:

unterwasser-fotografieren.de

H2o-Tools Kugel-Klammer Schwarz - unterwasser-fotografier...

Blitzarm

Any idea if they would fit? I am not sure if the H2O-Tools are maybe metric (ultralight are us/inch) or have another thread pitch)?

Thanks for your help,

Jens

It's almost guaranteed to be metric unless it is made in USA or possibly in Canada. You could pickup some colourful anodised clamps on the likes of Temu or Ebay for about the same price and just use the handle perhaps - the clamps themselves may not be great, more than likely same thread but no guarantee and the anodizing may not be great either so potentially disposable items. My Nauticam clamps are m6 x 1.0 FYI.

I have mostly ULCS and Nauticam clamps. The ULCS are US standard 1/4X20 and 1/4X28 (fine). The M6 is quite close to 1/4X20 which is slightly larger in diameter. You could possibly convert your M6 outer clamp to 1/4X20 by running a tap through it and then thereafter use the ULCS clamp knobs in your preferred color. Use a permanent thread locker (271 or similar) on the outer clamp half. Just a thought, have not tried it.

Edited May 15May 15 by Nemrod

22 minutes ago, Nemrod said:

I have mostly ULCS and Nauticam clamps. The ULCS are US standard 1/4X20 and 1/4X28 (fine). The M6 is quite close to 1/4X20 which is slightly larger in diameter. You could possibly convert your M6 outer clamp to 1/4X20 by running a tap through it and then thereafter use the ULCS clamp knobs in your preferred color. Use a permanent thread locker (271 or similar) on the outer clamp half. Just a thought, have not tried it.

Problem with doing this is you cut through the anodizing on the threads meaning it's more prone to corrosion and the thread won't be as strong. It would be quite easy to strip the threads out. There's a few different brands of clamps that offer coloured versions, including nitescuba or you could convert to full ULCS clamps.

Even the cheap colored Ali express clamps are 1/4 20, not metric

Bill

I just did some compatibility tests which confused me:

The knobs from my long Nauticam clamps (https://www.nauticam.com/products/long-standard-clamp) fit on my H2O Tools clamps and vice versa. The screws are M6 50 mm (metric)!