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  • 🔗 API
    • 🔑 Authentication
    • 🎨 GraphQL API
    • 🗂️ REST APIs
      • Telemetry API
      • Gate Video Stream
    • 🚪 Rate limiting
    • Share Token Authentication
  • 📱 Web-app
    • Features
      • apiary management
      • Billing System
      • bottom board management
      • frame photo upload
      • frame side management
      • hive management
      • hive placement planner
      • join colonies
      • keyboard support
      • queen detection
      • queen management
      • split colony
      • telemetry storage
      • timeseries analytics
      • user profile editing
      • user registration
      • varroa bottom detection
    • Tech stack, conventions, environments
    • User Journey Maps
    • UX UI wireframes
    • 🥞 DB schemas
      • gate video stream
      • image splitter
      • swarm api
      • user cycle
  • 🌡️ Beehive IoT sensors
    • Phase 1 - Lab
      • Product description
      • Bill of materials
      • Wiring diagrams
        • ESP32 ↔ HX711 + load cell wiring diagram
        • ESP32 ↔ DS18B20 wiring diagram
        • Complete lab wiring with pin allocation
      • System overview
    • Phase 2 - Field MVP
      • Product description
      • Bill of materials
    • Phase 3 - Production
      • Product description
      • Bill of materials
    • 🧪 Research references
    • 3d model
    • Choice of processor chip
    • Installation
  • 👁️‍🗨️ Entrance observer
    • Phase 1 - Lab
      • Product description
      • Bill of materials
    • Phase 2 - Field MVP
      • Product description
      • Bill of materials
    • Phase 3 - Production
      • Product description
      • Bill of materials
    • Legacy research archive
      • Components jetson
        • Camera Mokose 4k
        • Camera lens
        • Camera mount
        • Jetson Nano
        • Jetson Nano case
        • SD card for Jetson Nano
        • Wi Fi antennas
        • WiFi module for Jetson Nano
      • Jetson Nano setup
      • ML processing devices
      • Remote Desktop connection setup 🖥️
      • Which model to use for vision
    • Bill of materials
    • Component analysis and alternatives
    • Components orin
      • 2020 Aluminum Extrusion
      • Camera
      • Camera lens
      • Case
      • Display
      • M2 SSD
      • Mounts
      • Orin Nano
      • Plexiglass
      • WiFi antennas
    • Future production hardware alternatives
    • Jetson Orin setup
    • On-demand entrance video streaming
  • 🧿 Robotic beehive
    • index
      • Camera Mokose 4k
      • NVMe M2 SSD for Jetson Orin
    • 4 axis gantry
    • CAD modelling 🫖
    • Design
    • FUYU 3 axis gantry + AMC 4030 controller info
    • Jetson Orin Nano setup
    • Robot Vendors
  • Research paper discovery and update
  1. Home
  2. 👁️‍🗨️ Entrance observer
  3. 🌡️ Beehive IoT sensors
  4. Components
  5. Screws

Screws M4 x 25mm

https://www.amazon.de/-/en/gp/product/B0D6R4QCB3/?th=1

Gratheon OÜ
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Copyright © 2026 Gratheon OÜ. Gratheon™ is registered by the Estonian Patent Office under registration no. 65350 (application M202501179).