SmallRig QR Rail Clamp (12mm Rod) 1403 could attach on a 12mm rod easily, and the rod could be locked tight by a wingnut. It is equipped with one 1/4’’-20 threaded holed and an array of M3 threaded holes for more accessories. It is lightweight, durable and ideal for DIY operations.
1 x Rail Clamp
Product Dimensions: 32 x 16 x 20mm
Net Weight: 27g
Package Size: 90 x 60 x 25mm
Material(s): Aluminum Alloy
I buyed four of this clamps to quickly release the gimbal of a DIY drone. I find this diameter perfect. On web there are cheaper 15mm clamps but 12mm carbon fiber tubes are strong enough to bear every camera. I apreciate very much the repositionable lever (pull and turn to reposition it): it is helpful in all cases you can not rotate continuosly the screw and, also, to avoid protruding levers. Quality is excellent, without defects. This clamps are really reliable and do not scratch the carbon fiber even if tighten.
This little stuff works like a wonder. It is compatible with 12mm rod and features a wingnut for quick locking. It is equipped with threaded holes for extensions!