
You could probably mount your cameras without a mounting bracket, but why would you? Use these mounting boxes and you'll have a watertight zone for your connections, the option of a stronger, more professional mount, and better protection from natural disasters and vandals. At around $10 each, they're a bargain for what you're getting.

WOSODA Trail Camera: Waterproof 16MP 1080P Hunting Game Camera with Night Vision for Home Security & Wildlife Monitoring
11 Review

Versatile Adjustable Wall Mount with Enhanced Security for Both Indoor and Outdoor Use
11 Review

Wasserstein Solar Panel 13 1Ft Compatible Camera & Photo and Video Surveillance
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WiFi Hidden Spy Camera with Live Feed & Video Recording - Remote Access Mini Nanny Cam | Spy Camera Wireless Hidden for Home Surveillance
11 Review