The B2-FABN Screw-Knob Clamp from Really Right Stuff is a small, lightweight quick release with a knurled knob, which offers a better grip and more clamping pressure onto a plate. The clamp is compatible with many Arca-type camera plates, multi-purpose bars, camera bars, and L-brackets. There are three strap bosses located on the clamp. The first one is located on the opposite side of the screw-knob, and the other two strap bosses are perpendicular to the jaws of the clamp. Therefore, straps can be looped through, and the clamp becomes a convenient way of carrying your camera around your shoulder or your neck.

A convenient 1/4"-20 socket is located on the bottom of the clamp and gives the option of screwing in a swivel mount and adapting a sling strap. The 1/4"-20 socket also gives the option of adding quick release functionality to many ball heads and monopods that do not have a quick release system.

The clamp has a laser-engraved scale with 1mm increments, so a camera can be positioned precisely or to repeat a position. The clamp is made from CNC machined 6061-T6 aluminum and it has a black anodized type II finish.

Arca-type compatible plate

Three built-in strap bosses for camera straps

1/4"-20 socket on the bottom of the clamp for Swivel Sling Mounts

Adds quick release function to a tripod or monopod

CNC machined 6061-T6 type II anodized black aluminum

Laser-engraved scale with 1mm increments