B2-Pro-II: Screw-knob clamp with M6 screw

SKU: B2-Pro-II-M6
$86.00

In Stock

Screw-knob Clamp, 60mm jaws

Why should you invest in a quick-release system? Because screwing your camera or lens onto a platform with standard 1/4"-20 screw is tedious and insecure. Not only is it a hassle to screw your gear onto that platform, but once installed the camera or lens is free to rotate; there's nothing to prevent it from coming loose. Why invest your money in a tripod and tripod head only to compromise your shots with an insecure connection between camera and head? Instead, adopt the Really Right Stuff quick-release system.

The Really Right Stuff quick-release system is based on the Arca-Swiss standard and has two parts: a quick-release clamp and a quick-release plate. You always need both pieces of the system. The clamp will stay on your tripod head/accessory all the time, and the plate will stay on your camera all the time. You will need to purchase a separate quick-release plate for each camera or collared, telephoto lens that you want to mount in the quick-release clamp on your tripod head.

Clamp jaws open and close in one of two ways: by twisting a knurled knob on our tried & true screw-knob clamps; or by flipping a single lever on our innovative, patented lever-release clamps. Traditional screw-knob clamps are tried & true and can deliver slightly greater clamping force than our Lever Release clamps.

This clamp has a NON-threaded center socket with countersink; mounting screw drops through from above into tapped female socket. This clamp cannot spin onto a threaded post. For mounting compatibility, consult our Clamp Selector Table.

*Some of the most recent Arca Swiss ballheads have clamps that cannot be removed by the consumer, such as the newest Z1. Please check your model to verify you can swap clamps or consult our knowledgeable Customer Support Representatives for compatibility.
  • B2 Pro II has a recessed non-threaded center socket for installation on a head or platform with tapped 1/4"-20 socket or tapped metric 6 socket.
  • Clamp features captive knob and safety stop relief grooves. It can mount on RRS ballheads, current model Arca-Swiss ballheads, and Manfrotto 468, 488RCO, 469, 468RC2, & 469RC heads.
  • B2 Pro II is 60mm (2.36") long with one recessed non-threaded center socket, safety stop relief grooves, captive knob, spirit level, and centering index marks, 4.3oz/124g
  • Metric 6 or 1/4"-20? Clamp comes with one flat head screw. Determine which one you need before purchase. Really Right Stuff ballheads use the 1/4"-20 screw, all other heads use metric 6 screws.
    1. B2-Pro II Screw-knob style quick-release clamp
    2. (1) Flat head screw, stainless steel, Metric 6
    3. (1) 5/32" hex-key
    4. user's guide
  • Jaw Length: 2.4" / 60mm
  • Width: 4.4" / 112mm
  • Height: 1.0" / 25mm
  • Weight: 4.4 oz / 125g
  • Center Hole not threaded; comes with one Metric 6 flathead screw and hex key