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Really Right Stuff B2-FABN Screw-Knob Clamp with Strap Bosses (38mm)

BH #REB2FABN • MFR #B2-FABN
Really Right Stuff B2-FABN Screw-Knob Clamp with Strap Bosses (38mm)
Key Features
  • Arca-Type Compatible Clamp
  • Built-In Bosses for Camera Straps
  • 1/4"-20 Socket for Swivel Sling Mounts
  • Bottom Dovetail Design on the Clamp
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.
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Really Right Stuff B2-FABN Overview

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
UPC: 818413023109

Really Right Stuff B2-FABN Specs

Assembly
Assembly Dimensions
L: 2.9 x W: 1.5 x H: 0.6" / L: 73.2 x W: 38.0 x H: 15.0 mm
General
Quick Release Type
Arca-Type
Material
Aluminum
Weight
2.2 oz / 62.4 g
Packaging Info
Package Weight
0.165 lb
Box Dimensions (LxWxH)
4.85 x 3.65 x 0.8"

Really Right Stuff B2-FABN Reviews

See any errors on this page? Let us know

What is the diameter of the top plate?

What is the diameter of the top plate?
Asked by: Alvin P
Fully open 45mm from groove to grove or 39mm from edge to edge not including the grooves. Fully closed 40mm groove to grove or 34mm from edge to edge. Groove meaning the portion of the plate that goes into the groove of the clamp.
Answered by: Rodney
Date published: 2022-01-06

how wide are the three strap bosses? Will a 1" ...

how wide are the three strap bosses? Will a 1" strap fit?
Asked by: Paul
The side lugs of the Really Right Stuff B2-FABN Screw-Knob Clamp with Strap Bosses (38mm) will fit a 0.70" strap, the front lug is 0.98" max, and both are 0.125" thickness maximum.
Answered by: Boyd H
Date published: 2022-12-06
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