M3 x 20mm Male-Female Black Nylon Hex Spacer Standoff

Specifications:

• Thread Size: M3 (Metric 3mm)
• Body Height: 20mm 
• Male Thread Length (B): 6mm
  
• Material: High-Strength Nylon 
• Hex Width: 5.5mm
• Color: Industrial Black
  
• Type: Male to Female (M-F Standoff) 
• Shape: Hexagonal (Easy tool grip)
• Insulation: Fully Non-conductive

Key Applications:

• PCB Stacking: Perfect for multi-layer Arduino or ESP32 shield mounting.
• Drone Frames: Lightweight motor and flight controller isolation.
• Compact Enclosures: Ideal for slim-profile 3D printed cases where vertical space is limited.
• Robotics: Securing sensor modules (Ultrasonic, IR) to a plastic or metal chassis.

Project Evolution

• Past Projects (Prerequisites): If you have previously used bulky 20mm or 25mm spacers, you know they often make your projects look "fat" or difficult to fit into standard project boxes.
• Feature Upgrade: Switching to this 20mm variant allows for ultra-low profile builds. This unlocks the ability to create wearable tech or handheld devices that are significantly thinner.
• Effort/Requirements: Beginner Level. Requires a standard M3 nut or a pre-tapped M3 hole in your baseplate.

Virtual Technician & Wiring 

• Torque Warning: Do not over-tighten! Since these are nylon, excessive torque can strip the threads. Finger-tight plus a quarter turn with a wrench is sufficient.
• Weight Support: Nylon spacers are excellent for PCBs but are not intended for heavy structural loads (e.g., mounting heavy lead-acid batteries).
• Environment: Avoid use in direct contact with concentrated acids.

1 X M3 x 20mm Male-Female Black Nylon Hex Spacer Standoff

Frequently Asked Questions (FAQ) 

1. What is the total length of the spacer including the male thread?
   The total length is 26mm (20mm body + 6mm thread).
2. Will these fit into a standard breadboard?
   No, breadboard holes are too small for M3 threads.
3. Are these spacers conductive?
   No, they are made of Nylon , which is an excellent electrical insulator.
4. Can I use these with metal M3 screws?
   Yes, nylon threads are compatible with standard M3 metal screws.
5. What is the hex size for the wrench?
   You should use a 5.5mm hex socket or wrench.
6. Are these resistant to high heat?
   They are rated up to 120°C, suitable for most electronic components but not for direct mounting on high-power heat sinks.
7. Can I trim the male thread if it's too long?
   Yes, nylon can be easily trimmed with a flush cutter.
8. What is the advantage of Nylon over Brass?
   Nylon is much lighter and provides electrical isolation, preventing accidental shorts.
9. Do these come with nuts?
   No, nuts must be purchased separately.
10. Are they RoHS compliant?
    Yes, our Nylon spacers are RoHS compliant.
11. Will they rust in humid environments?
    No, nylon is completely immune to corrosion and rust.
12. What size hole do I need to drill for the male end?
    A 3mm or 3.2mm hole is standard for M3 clearance.
13. Can I stack two of these together?
    Yes, you can screw the male end of one into the female end of another to create a 40mm spacer.
14. Is the black color painted or molded?
    The color is molded into the material; it will not chip or peel.
15. Are these suitable for marine applications?
    Yes, they are salt-water resistant.
16. How much weight can a single spacer hold?
    For static PCB mounting, a set of 4 can easily support several kilograms, but they are not for structural mechanical loads.
17. Is the thread pitch standard?
    Yes, it is the standard M3 x 0.5mm pitch.
18. Can I use these in a vacuum?
    Yes, Nylon has low outgassing properties.
19. Are they UV resistant for outdoor use?
    Black nylon has better UV resistance than white/natural nylon, but prolonged exposure may eventually cause brittleness.
20. How are they shipped?
    We use Probots™ Secure-Transit  packaging to ensure threads are protected during delivery.