برغي حامل ثلاثي قابل للعكس Promaster 4014 - 1/4"-20 و 3/8"-16

Finally, a bolt that fits both my old and new tripod plates without needing an adapter. The reversible threading is exactly what I needed for my quick-release setup.

Was worried the threading might strip on my heavier rig, but the dual 1/4"-20 and 3/8"-16 ends screwed on snug and held firm during a full afternoon shoot. Flipping it between my ball head and a quick-release plate took seconds, no adapter needed.

The reversible threads mean I can keep this as a single backup in my bag instead of carrying two separate adapters. Took it on a weekend shoot and swapped between my 3/8" head and 1/4" plate without any wobble. Comes in a small pouch, which is a nice touch for a part this easy to misplace.