Kupo KS-426 Super Knuckle Ball With 3/8"""" Screw & Locating Pin

Kupo KS-426 Super Knuckle Ball – 3/8in-16 Screw with Arri Locating Pins to Prevent Rotation

This Kupo KS-426 Super Knuckle Ball is part of the Super Knuckle system and provides a secure mounting point for camera accessories. It features a 3/8in-16 screw and Arri locating pins that prevent equipment from rotating after mounting, a connection commonly used in the video and cinema industries and often found on camera cages.

Key features

• Part of the Super Knuckle system for modular accessory mounting.
• Includes a 3/8in-16 screw and Arri locating pins to stop rotation once mounted.
• Thumb screw with a knurled tightening knob for quick locking and easy hand operation.
• Can also be re-tightened with a #3 Allen Key when additional torque is required.
• CNC machined aluminum construction for a precise fit and reliable performance.
• Compatible with other Super Knuckle Ball accessories to expand mounting options.

How you can use it

Mount the KS-426 onto a camera cage, handle, or other rigging points where rotational security matters. The locating pins engage with corresponding holes to prevent unwanted spin, making the part well suited for positions where stable alignment is essential. Because it is compatible with other Super Knuckle accessories, you can build or adapt multi-point mounting solutions.

Operation and tightening

Use the knurled thumbscrew for fast, tool-free adjustments and quick release when swapping gear. If you need a firmer setting, use a #3 Allen Key to re-tighten the thumbscrew and secure the joint further. This combination offers both convenience and the ability to achieve a more permanent hold when needed.

Specifications

FAQ

Question: Will this knuckle ball prevent my accessory from rotating once mounted?
Answer: Yes. The KS-426 uses Arri locating pins together with a 3/8in-16 screw to prevent rotation after mounting, making it suitable for camera cages and handles where stable alignment is required.

Question: Can I tighten the thumbscrew without tools?
Answer: Yes. The knurled thumbscrew is designed for quick hand tightening and easy quick release. If you prefer more torque, you can re-tighten the thumbscrew with a #3 Allen Key.

Question: Is this compatible with other super knuckle accessories?
Answer: Yes. The KS-426 is compatible with other Super Knuckle Ball accessories, allowing you to expand or adapt your mounting configuration as needed.

Question: What is the knuckle ball made of and why does that matter?
Answer: The ball is CNC machined from aluminum, which provides precise tolerances and a reliable connection within the Super Knuckle system.