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The Carr Lock System requires that each Carr Lock Clamp be used together with a Carr Lock Receiver Bushing – either the face-mount type or the back-mount type. The clamp's locking balls engage the angled ID section of the Receiver Bushing, pulling the clamp firmly downward. Face-Mount Receiver Bushings can be bolted into a slip-fit bored hole from above the subplate, with three socket-head cap screws. Made in USA.
Each mounting point consists of three components: (1) Carr Lock Clamp, with a precisely ground shank (2) Carr Lock Liner Bushing or clearance hole in the top plate (3) Carr Lock Receiver Bushing in the subplate.

Face-Mount Receiver Bushings can be bolted into a slip-fit bored hole from above the subplate, with three socket-head cap screws (furnished). The installation hole must be jig bored for accurate size and location. Installed bushings will be approximately .012" below the subplate's top surface.
| Material | Heat Treat | Finish | DFARS | RoHS |
| 4340 Steel | Heat Treated Rc 50-54 | Black Oxide | ✔ | ✔ |

| Id (mm) | A Diameter Nominal (mm) | A Bushing Diameter (mm) | A Hole Diameter (mm) | B Bushing Length (mm) | B Hole Depth (mm) | C (mm) | F Thread | Thread Pitch (mm) | G (mm) | H (mm) | J Diameter (mm) | M (mm) |
| 20mm | 45mm | 44.990 / 44.980mm | 45 / 45.010mm | 15.8mm | 16.18 / 16.23mm | 21mm | M5 | 0.8mm | 12mm | 6mm | 35mm | 20mm |
Ships within 48 hours · Estimated delivery Jun 30 - Jul 5
US$40
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