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Ships within 48 hours · Estimated delivery Jul 6 - Jul 11
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Description
Hollyland Spares - Screw Fitting (for Mars 4K & Cosmo C1)The Hollyland Screw Fitting (Model: HL SF02) is an official OEM mounting expansion plate tailored specifically for the Mars 4K and Cosmo C1 wireless video transmission systems. Because the Mars 4K and Cosmo C1 share a similar heavy duty, vertical chassis design, they utilize this specialized rectangular cold shoe expansion plate to convert their side or bottom alignment points into a fully stabilized, anti twist rigging node. Core Structural & Rigging
The Hollyland Screw Fitting (Model: HL-SF02) is an official OEM mounting expansion plate tailored specifically for the Mars 4K and Cosmo C1 wireless video transmission systems.
Because the Mars 4K and Cosmo C1 share a similar heavy-duty, vertical chassis design, they utilize this specialized rectangular cold-shoe expansion plate to convert their side or bottom alignment points into a fully stabilized, anti-twist rigging node.
Core Structural & Rigging Features
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Dual-Point Stabilization: The plate features two integrated, captive thumb-tightening screws positioned on either side of the center hub. These lock directly into the matching dual-thread spacing on the back or side panel of the transmitter/receiver chassis, completely eliminating the twisting or spinning common with single-screw mounts.
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Reinforced $1/4"-20$ Female Port: The center of the plate provides a deep, precision-threaded $1/4"-20$ female receiver hole. This lets you attach articulating friction arms, quick-release plates, or cold shoe adapters natively without putting stress directly on the main chassis body.
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Low-Profile Vertical Integration: Designed to maintain the sleek, aerodynamic profile of your wireless systems. When bolted to the back of a Cosmo C1 or Mars 4K, it sits perfectly flush, ensuring it doesn't block access to the SDI loopout ports, HDMI sockets, or the battery release mechanism.
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CNC Aluminum Construction: Machined out of high-grade, lightweight aluminum alloy and finished in a non-reflective matte black anodized coating to handle heavy daily on-set production abuse.
System Interoperability
This expansion accessory attaches directly to the dedicated hardware mounting channels found on:
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Hollyland Mars 4K Transmitter & Receiver Units
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Hollyland Cosmo C1 SDI/HDMI Wireless Video Systems
Technical Specifications Matrix
| Component Attribute | Technical Specifications Detail |
| Official Model SKU | HL-SF02 (Screw Fitting 02) |
| Ecosystem Compatibility | Hollyland Mars 4K / Cosmo C1 Systems |
| Chassis Connection | 2 × Integrated Captive Thumbscrews |
| Output Rigging Interface | 1 × Standard 1/4"-20 Female Threaded Core |
| Material Composition | CNC-Machined Anodized Aluminum Alloy |
| Color Configuration Finish | Production Matte Black |
On-Set Rigging Tip: When utilizing this fitting to mount your transmitter vertically on a camera cage, ensure both thumbscrews are tightened completely flat against the chassis frame. This distributes the weight of attached SDI/HDMI cables evenly across the plate, preventing localized thread wear during sudden camera pans or rapid handheld movements.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy