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Round aluminium knuckle ball with 3/8 and 1/4 inch holes, M5 screws and nuts included

Kupo

Kupo Super Knuckle Ball studio mount for Convi Clamp & Cheese Plate

SKU CH-50AD-WZ4J7

Mounts lights, monitors and cameras with 3/8" and 1/4" threads, includes M5 screws and nuts, aluminium construction

  • Rock-solid stability for lights and monitors with superior grip design
  • High load capacity handles heavier gear without compromising stability
  • Durable aluminium construction withstands professional studio use
  • Smooth, precise adjustment for quick angle changes on set
  • Dual 3/8" and 1/4" holes fit Convi Clamp and cheese plate systems

Superior Grip for Studio Mounting

The Kupo Super Knuckle Ball provides rock-solid stability for lights, monitors and cameras on set or in the studio. Its design prevents slips and keeps equipment securely locked in position during shoots. The accessory connects directly to a Convi Clamp or standard cheese plate for immediate use.

High Load Capacity and Aluminium Build

Crafted from high-quality aluminium, the knuckle ball supports substantial weight without compromising stability. The durable construction withstands the rigors of daily professional use while maintaining reliable performance. No active cooling or power draw is involved, so operation remains completely silent.

Dual Threaded Holes and Included Hardware

The round plate features both 3/8" and 1/4" mounting holes for broad compatibility with industry-standard gear. M5 screws, nuts and bolts are supplied to fit the 1" centre-to-centre hole pattern, allowing quick assembly. Builders needing a different hole spacing or a larger mounting surface will need a separate adapter.

How it compares

Measured against everything we stock in Photo Lighting & Studio Flashes, at today’s prices. Recalculated every night.

Price $41.99
Cheaper than about 65% of the 3,696 comparable items (median $57.99).

Specifications

No published specifications for this item yet.

Questions about this item

How do I mount the Super Knuckle Ball to a Convi Clamp or cheese plate?

Align the 1" center-to-center holes, insert the included M5 screws with the supplied 3/8" and 1/4" nuts and bolts, then tighten securely for a rigid connection.

What maintenance does the aluminum knuckle ball need over time?

Periodically check and re-tighten the M5 fasteners, inspect the 3/8" and 1/4" threads for wear, and wipe the aluminum surfaces clean to prevent grit from affecting smooth adjustment.

At what point does the joint start to slip under a heavy continuous load?

The high-load-capacity design resists slipping until the mounted weight exceeds the friction limit of the tightened ball joint, which varies with leverage and orientation.

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