Best Plastic Spacers for PCB: Top Picks for Insulation and Support
The following selection highlights durable plastic spacers and standoffs designed for PCBs, motherboards, and arcade boards. These non-conductive components help isolate boards, prevent shorts, and provide reliable mounting in a variety of electronics projects. Below are five well-suited options with notable features to consider when choosing spacers for your build.
| Product | Brand | Key Feature |
|---|---|---|
| Ladinka 580 PCS M3 Nylon Standoff Kit | Ladinka | Non-conductive nylon, 13 sizes, includes screws and nuts |
| Marsui Sticky PCB Spacers 0.25 | Marsui | Adhesive mounting, 100 pieces, insulating plastic |
| Marsui Sticky PCB Spacers 0.5 | Marsui | Adhesive mounting, 100 pieces, varied device compatibility |
| Zorveiio PCB Feet with Screws | Zorveiio | Plastic feet, screws included, stands 0.8 in |
| LQ Industrial Sticky PCB Spacers | LQ Industrial | Adhesive backing, white plastic, 25 pieces |
Ladinka 580 PCS M3 Nylon Standoff Kit
Ladinka offers an M3 nylon standoff kit that includes spacers, screws, nuts, and threaded pillar standoffs across 13 lengths (1mm–20mm). The kit is designed for motherboards, PCBs, and general circuit board mounting. The non-conductive, reinforced nylon construction reduces corrosion risk and prevents electrical shorts, ensuring stable insulation for sensitive electronics. Compatible with computer builds, 3D printers, Raspberry Pi projects, and industrial panels, this kit secures components without metal-induced interference.
Marsui Sticky PCB Spacers 0.25 inch
Marsui’s 0.25-inch sticky PCB spacers come in a 100-piece pack. They feature an adhesive backing for easy placement and a buckled design to secure the circuit board without damage during installation or removal. The base measures 12.5 x 12.5 mm, with a 4 mm support column and a total height of 15 mm, suitable for a range of devices and mounting configurations. These spacers are designed to stay in place, offering reliable insulative support for PCBs and computer boards.
Marsui Sticky PCB Spacers 0.5 inch
This Marsui offering provides 100 adhesive PCB spacers at a 0.5-inch height, with the same adhesive design that helps keep boards securely in place. With a base of 12.5 x 12.5 mm and a 4 mm diameter support, these spacers are compatible with diverse devices. The 0.5-inch height is suitable for applications requiring a taller offset, maintaining clean insulation and simple removal when needed.
Marsrut 100Pcs HC-5 Nylon Sticky Spacers
Marsrut provides a 100-piece set of 3 mm locking snap-in posts with an insulating layer and double-sided sponge adhesive. The design emphasizes safe installation with a snug grip to prevent PCB movement, reducing the risk of damage during handling. The material and locking mechanism support stable mounting without drilling or screws, suitable for compact electronics and console builds.
LQ Industrial Sticky PCB Spacers
LQ Industrial offers 25 white plastic spacers with a back adhesive design for stable, long-lasting fixation on circuit boards. The spacers measure 20 x 20 mm with a height of about 22.8 mm, providing reliable insulation and support for stacked PCBs or compact assemblies. The adhesive backing simplifies placement and helps protect boards from movement during operation.
Buying Guide: Key Purchase Considerations
- Material and insulation: Choose non-conductive plastics (nylon or similar) to prevent shorts and corrosion, especially in high-humidity or high- EMI environments.
- Height and diameter: Match the spacer height to your board clearance needs. Consider base size compatibility with mounting holes and screw sizes.
- Adhesive-backed vs. screw-in: Adhesive spacers are quick to install and great for compact builds; screw-in or locking standoffs offer higher removal durability and reuse in rugged setups.
- Load and vibration tolerance: Heavier boards or devices with vibration may benefit from standoffs with locking features or reinforced materials.
- Compatibility: Ensure the spacers fit your board’s mounting pattern (M3, standard 0.1 inches, etc.) and that length increments cover your required offsets.
- Application range: Some spacers are tailored for PCBs, others for arcade boards or Raspberry Pi projects—select according to your primary use case.
- Quantity and packaging: For large builds, bulk packs reduce procurement frequency; for small projects, starter packs with mixed heights can be more convenient.
- Installation considerations: Adhesive spacers may require surface cleaning and cure time; screw-in options demand compatible screws and driver access.
- Durability and environmental exposure: Look for nylon or reinforced plastics with good wear resistance for long-term use in electronics enclosures.
- Cost-effectiveness: Compare per-piece pricing and included hardware to determine best value for your project scope.