Mounting Magic Arm with Super Clamp K&F Kf31.131s2 — 1/4" & 3/8" threads, clamp 15–55 mm, phone holder compatible

K&F Mounting Magic Arm with Super Clamp Kf31.131s2 is a versatile mounting accessory that provides adjustable support for cameras, phone holders and photo-video accessories. The arm features both 1/4" and 3/8" threaded connections and a super clamp with a clamping range of 15–55 mm, allowing secure attachment to tables, poles, tripods, rails and other fixtures. Its articulated joints enable precise positioning and stable hold for still photography, video recording, live streaming and desktop setups.

Advantages

The magic arm combines dual-threaded connectors and a wide-range super clamp to offer compatibility with a variety of devices and mounting points. Articulated joints with tightening controls provide fine adjustment and rigid locking to maintain the chosen angle under load. The compact design and metal construction deliver durability while keeping the assembly relatively lightweight. The inclusion of both 1/4" and 3/8" threads eliminates the need for extra adapters in many common configurations.

Suitable for

• Mounting mirrorless or compact cameras to tables, posts or light stands
• Attaching phone holders for hands-free mobile recording and streaming
• Holding small LED lights, microphones or monitors in place
• Setting up desktop rigs for product photography, tutorials or video calls

Key specifications

• Thread options: 1/4" and 3/8" threaded connectors for accessories
• Clamp opening range: 15–55 mm for attachment to surfaces and tubes
• Articulated arm: adjustable joints with tightening knobs for angle control
• Material: metal construction for strength and stability
• Compatibility: works with standard camera and accessory mounts and phone holders

How to use

Open the super clamp and position it around the desired mounting surface within the 15–55 mm range, then tighten the clamp screw until the clamp holds firmly. Attach the accessory to the arm using the 1/4" or 3/8" threaded connector as required, or mount a phone holder to the appropriate thread. Adjust the arm joints to the preferred angle and tighten the knobs to lock the position. Check stability before leaving any equipment unattended on the mount.

Usage recommendations

For safe operation, confirm the combined weight of mounted devices does not exceed the arm's practical load capacity, distribute weight close to the clamp when possible, and periodically check and re-tighten knobs during extended use. Use on clean, non-slippery surfaces and avoid overtightening the clamp on delicate finishes.