User Manual-SCREW-KNOB CLAMPS

Center hole is keyed;
some clamps have
single groove, some
have double groove.
Additional mounting
holes threaded ¼”‑20
(not on all models).
Top View of B2-Pro II:
KEY FEATURES KEY FEATURES
All mounting holes have
countersink. Some models
have threaded center
hole, some models are
non‑threaded.
Relief grooves allow
greater adjustment
for plates with
safety stops.
Laser engraved scale
in 1mm increments
(not on all models).
Bullseye spirit
level for quick
leveling (not on
all models).
Tried & true screw knob
mechanism delivers
maximum pressure on RRS‑
style quick‑release plates.
Captive Knob is
contoured for grip and
stops at maximum
opening: cannot be
lost in the field!
Bottom View of B2-Pro:
B2-Pro II pictured;
models vary.
__________________________
CLAMP ID
SCREW-KNOB CLAMPS
1146 Farmhouse Lane, San Luis Obispo, CA 93401 USA
1‑805‑528‑6321 | 1‑888‑777‑5557
www.ReallyRightStu.com
Really Right Stuff screw-knob clamps are compatible with
all Really Right Stuff and Arca-style quick-release plates.
Models vary in jaw length and features. Models with non-
threaded center holes include mounting screw and hex key.
Check our website for detailed specifications on all clamps.
Center hole is keyed;
some clamps have
single groove, some
have double groove.
Additional mounting
holes threaded ¼”‑20
(not on all models).
Top View of B2-Pro II:
KEY FEATURES KEY FEATURES
All mounting holes have
countersink. Some models
have threaded center
hole, some models are
non‑threaded.
Relief grooves allow
greater adjustment
for plates with
safety stops.
Laser engraved scale
in 1mm increments
(not on all models).
Bullseye spirit
level for quick
leveling (not on
all models).
Tried & true screw knob
mechanism delivers
maximum pressure on RRS‑
style quick‑release plates.
Captive Knob is
contoured for grip and
stops at maximum
opening: cannot be
lost in the field!
Bottom View of B2-Pro:
B2-Pro II pictured;
models vary.
__________________________
CLAMP ID
SCREW-KNOB CLAMPS
1146 Farmhouse Lane, San Luis Obispo, CA 93401 USA
1‑805‑528‑6321 | 1‑888‑777‑5557
www.ReallyRightStu.com
Really Right Stuff screw-knob clamps are compatible with
all Really Right Stuff and Arca-style quick-release plates.
Models vary in jaw length and features. Models with non-
threaded center holes include mounting screw and hex key.
Check our website for detailed specifications on all clamps.