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M3 Nuts and Bolts Kit – 200 Piece Hardware Set for Electronics
Rs. 180.00
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M3 Nuts and Bolts Kit – 200 Piece Electronics Hardware Set
A 200-piece M3 hardware kit with hex bolts (6-20 mm lengths) and nuts, essential for mounting Arduino, ESP32, Raspberry Pi boards, sensors, and 3D printed enclosures in prototyping projects.
Key Specifications
| Material | Stainless Steel (A2) or Zinc-plated Steel |
| Finish | Plain (stainless) or Zinc Plated |
| Thread Size | M3 × 0.5 mm (standard metric coarse) |
| Bolt Lengths Included | 6 mm, 10 mm, 12 mm, 16 mm, 20 mm (approx distribution) |
| Head Type | Hex Socket Cap (Allen key driven) |
| Quantity | ~200 pieces (mix of bolts and nuts) |
| Nut Type | Hex nuts, M3 thread |
| Drive Size (Hex Key) | 2 mm (typically included or user-supplied) |
What You Can Build With This
- Simple LED matrix stand: Secure an 8×8 matrix to a rigid base using M3 bolts and standoffs for a stable beginner display project.
- Weather station enclosure: Fasten an ESP32 and environmental sensors inside a 3D printed box, protected by M3 screws.
- Pi camera mount: Attach a Raspberry Pi camera module to a tripod or bracket with M3 bolts for time‑lapse or monitoring applications.
- CBSE class 11‑12 electric circuit board: Mount battery holders, switches, and wiring on a wooden demonstration board using M3 hardware.
- Smart irrigation prototype (SIH): Assemble a water‑resistant housing for soil moisture sensors and a microcontroller with M3 bolts for field deployments.
Compatibility
| Platform | Compatible | Connection | Library / Method |
|---|---|---|---|
| Arduino Uno R3 | Yes | M3 bolts through board mounting holes (3.2 mm) | N/A (mechanical only) |
| Arduino Nano | Yes | M3 bolts through board mounting holes | N/A (mechanical only) |
| Arduino Mega 2560 | Yes | M3 bolts through board mounting holes | N/A (mechanical only) |
| ESP8266 NodeMCU | Yes | M3 bolts through board mounting holes | N/A (mechanical only) |
| ESP32 Dev Board | Yes | M3 bolts through board mounting holes | N/A (mechanical only) |
| Raspberry Pi Pico | Yes with bracket | Use PCB standoffs; Pico lacks direct M3 holes | N/A (mechanical only) |
| Raspberry Pi 4 / 5 | Yes | M3 bolts through board mounting holes | N/A (mechanical only) |
Wiring and Interface Notes
M3 bolts are purely mechanical; they do not carry electrical signals. Use plastic or nylon washers when mounting on PCB boards near traces to prevent shorts. Tighten bolts to ~0.5 N·m torque to avoid stripping threads.
Frequently Asked Questions
Are these bolts compatible with Arduino board mounting holes?
Yes, standard Arduino boards (Uno, Mega) have M3 clearance holes (3.2 mm). These bolts fit directly.
Can I use this kit for 3D printed projects?
Yes, M3 is the most common size for 3D printed enclosures and brackets. The included lengths accommodate wall thicknesses up to 6 mm.
Ask Soldr above what you can build with this — it knows every Compoden kit this part appears in.
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items