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A black plastic ARION-embossed tension knob with a grooved adjustable clamp, designed for use with Robust™ Series mounts and compatible with the 2.75-inch Metal Mount Shaft—25mm (1 inch) ball.
The Robust™ Series 2.75 inch Metal Mount Shaft features a 25mm (1 inch) ball, a black adjustable arm with tightening knob for mounting accessories, and displays the ARKON logo in the bottom right corner.
A hand holds a black mounting plate with a ball joint, ready to attach it to an ARION-labeled clamp. The adjustable clamp with ridged grip and tightening knob fits the Robust™ Series 2.75 Metal Mount Shaft—25mm (1) Ball Compatible.
A black plastic ARION locking knob with textured grip is shown beside a 2.75-inch vertical line, designed for Robust™ Series 2.75 inch Metal Mount Shaft (25mm/1 inch ball compatible), displayed on a white background.
A black plastic ARION-embossed tension knob with a grooved adjustable clamp, designed for use with Robust™ Series mounts and compatible with the 2.75-inch Metal Mount Shaft—25mm (1 inch) ball.
The Robust™ Series 2.75 inch Metal Mount Shaft features a 25mm (1 inch) ball, a black adjustable arm with tightening knob for mounting accessories, and displays the ARKON logo in the bottom right corner.
A hand holds a black mounting plate with a ball joint, ready to attach it to an ARION-labeled clamp. The adjustable clamp with ridged grip and tightening knob fits the Robust™ Series 2.75 Metal Mount Shaft—25mm (1) Ball Compatible.
A black plastic ARION locking knob with textured grip is shown beside a 2.75-inch vertical line, designed for Robust™ Series 2.75 inch Metal Mount Shaft (25mm/1 inch ball compatible), displayed on a white background.

ROBUST® 2.75" Metal Double Socket Arm – 25mm Ball

SKU SPRMSMET
Rated 4.87/5 by thousands of happy customers
$21.49 - $21.49
$21.49
$21.49 - $21.49
$21.49
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Build or upgrade your mounting setup with the ROBUST® 2.75" Metal Double Socket Arm. Designed to connect two compatible 25mm (1") ball components, this compact shaft arm provides a strong, adjustable connection for custom mounting configurations.

The double socket design allows the arm to pivot at both ends for flexible positioning. A center adjustment knob makes it easy to loosen, reposition, and securely tighten the connected components.

FEATURES:

  • Double socket arm connects two 25mm (1") ball components
  • Metal construction provides a strong, durable connection
  • Adjustable design supports flexible positioning and viewing angles
  • Center knob allows quick adjustment and secure tightening
  • Compact profile for building low-profile mounting configurations
  • Ideal as a replacement component or for creating custom mounting systems

Compatibility with:

Compatible with any device, shaft, or holder that utilizes a 25mm / 1 inch ball size.

Compatible with all Quadlock 1" ball mounting systems.

  • Design: Compact metal double socket arm with two 25mm ball sockets and a center adjustment knob for positioning and tension control.
  • Ball Compatibility: 25mm (1")
  • Arm Length: 2.75"
  • Material: Metal
  • Mounting Type: Double Socket Arm

California Prop 65 Warning

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30% OFF SITEWIDE

Valid now through September 8th, 2026. Restrictions apply. Use code LABORDAY at checkout.

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