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POM Washers M3–M10 – Flat & Conical Plastic Insulation Gaskets for Screws and Electronics

Availability: In Stock
SKU: 100006028:200040020#M3x10x2.5 Flat;200116262:202796826#10Pcs
Regular price $30.47 $10.47 | Save $-20.00 (-192% off)
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Size chart showing POM washer dimensions in metric and inch units

POM Washers M3–M10 – Flat & Conical Plastic Insulation Gaskets for Screws and Electronics

M3x10x2.5 Flat / 10Pcs - $30.47
  • M3x10x2.5 Flat / 10Pcs - $30.47
  • M4x12x3 Flat / 10Pcs - $30.72
  • M4x13x3.5 Flat / 10Pcs - $30.72
  • M5x15x3.5 Flat / 10Pcs - $31.24
  • M6x18x4 Flat / 10Pcs - $32.02
  • M3x12x3 Cone / 10Pcs - $32.72
  • M4x14x3 Cone / 10Pcs - $32.99
  • M5x16x3.5 Cone / 10Pcs - $32.24
  • M6x18x4 Cone / 10Pcs - $32.02
  • M6x19x4 Cone / 10Pcs - $32.54
  • M8x25x5 Cone / 10Pcs - $27.85
  • M10x30x6 Cone / 10Pcs - $27.55

POM Washers M3–M10 – Flat & Conical Plastic Insulation Gaskets for Screws and Electronics

PRODUCT DETAILS

POM Plastic Washers – M3 to M10 Flat & Conical Insulation Gaskets | Inch & Metric Sizes Available

High-Strength POM Washers for Electronics, Engineering, and Custom Projects

Looking for a dependable solution for electrical insulation, precise spacing, or high-performance fastening? Our POM plastic washers offer outstanding strength, dimensional stability, and electrical resistance. Available in flat and countersunk (conical) styles, these M3 to M10 washers fit a wide range of hardware configurations and are ideal for use in electronics, robotics, 3D printing, automotive, and engineering projects.

Made from high-quality Polyoxymethylene (POM), these washers provide excellent wear resistance, thermal stability, and dielectric performance, making them a smart choice for professionals and DIYers alike.


Key Features and Benefits

  • Premium Material: Manufactured from industrial-grade POM (Polyoxymethylene) for high mechanical strength and rigidity.

  • Flat & Countersunk Styles: Choose from flat washers for load distribution or tapered cone washers for flush countersunk screw installations.

  • Wide Size Range: Available from M3 to M10 with exact dimensions in both mm and inch formats.

  • Corrosion & Chemical Resistant: Ideal for long-term use in harsh or outdoor environments.

  • Excellent Insulation Properties: POM is a strong dielectric material—perfect for electrical and electronic insulation.

  • Custom Orders Welcome: Need a specific size, color, or custom machining? We’ve got you covered.


Sizing Options – Metric & Inch Equivalents

Metric Size Approx. Inch Size Type
M3×10×2.5 0.12" × 0.39" × 0.10" Flat
M3×12×3 0.12" × 0.47" × 0.12" Cone
M4×12×3 0.16" × 0.47" × 0.12" Flat
M4×13×3.5 0.16" × 0.51" × 0.14" Flat
M4×14×3 0.16" × 0.55" × 0.12" Cone
M5×15×3.5 0.20" × 0.59" × 0.14" Flat
M5×16×3.5 0.20" × 0.63" × 0.14" Cone
M6×18×4 0.24" × 0.71" × 0.16" Flat / Cone
M6×19×4 0.24" × 0.75" × 0.16" Cone
M8×25×5 0.31" × 0.98" × 0.20" Cone
M10×30×6 0.39" × 1.18" × 0.24" Cone

Each set includes 10 pieces for easy use in projects and repairs.


Applications and Use Cases

Our POM insulation washers are trusted by:

  • 🔌 Electronics and PCB manufacturers

  • 🤖 Robotics and mechanical assembly teams

  • 🏗️ Construction and engineering professionals

  • 🔧 Automotive repair and modification technicians

  • 🧪 3D printing and prototyping labs

  • 🏠 DIY enthusiasts working on home improvement projects

Whether you're insulating a sensitive circuit board or spacing components in a high-stress environment, these washers deliver reliable performance and long service life.


Why Choose BeePlastic?

At BeePlastic, we do more than just supply plastic washers—we offer:

  • 🌍 A wide selection of engineering plastics, from POM to PTFE, PEI, FR4, and more.

  • 🛠️ Custom CNC cutting and machining services tailored to your application.

  • 💬 Professional support that helps you select the right material, fastener, or gasket.

  • 💰 Cost-effective solutions that help reduce your project expenses without compromising on quality.

We help you save time and money by offering flexible order sizes, fast fulfillment, and reliable global shipping.


Frequently Asked Questions

Q: What’s the difference between flat and conical POM washers?

A: Flat washers evenly distribute load and are ideal for general spacing and insulation. Conical (countersunk) washers are used with countersunk screws for a smooth, flush finish.

Q: Can I request custom sizes or bulk orders?

A: Absolutely. We support custom size manufacturing and large volume discounts. Just click the “Request a Custom Order” button below or message us with your requirements.

Q: Are these washers safe for electronics or high voltage use?

A: Yes! POM offers excellent dielectric strength and is widely used in electronic insulation. For high-voltage applications, we also offer materials like PTFE or FR4—just ask us.


Ready to Order or Customize?

🔹 Select your size and washer type from the dropdown above
🔹 Click "Add to Cart" to place your order

Or, for custom sizing, high-volume orders, or expert material advice:

👉 Request a Custom Order – Click Here

REVIEWS

SHIPPING & RETURNS

Shipping Information

Free Standard Shipping
We offer free standard shipping on all orders. Delivery time is approximately 10-25 business days, depending on your location and carrier performance. Tracking information will be provided once your order is shipped.

Express Shipping Available
Need your order faster? We offer express shipping with delivery in 4-7 business days. Express shipping fees are calculated based on your specific shipping address. To arrange express shipping, please contact our customer service team at beeplastic@beeplastic.com or via WhatsApp before placing your order. Our team will confirm the express shipping cost and process your request.

Processing Time
Standard items: Ships within 1-3 business days
Custom items: Requires 7-10 days production time before shipping

Returns & Refunds Policy

Important Notice: Returns are accepted ONLY for products with quality defects. Non-defective items cannot be returned or refunded.

Standard Items (Non-Customized Products)
Standard items without quality defects are not eligible for return or refund. If you receive a standard item with manufacturing defects or quality issues, you may request a return or replacement within 30 days of receipt.

Custom Items (Made-to-Order Products)
All customized products are NON-RETURNABLE and NON-REFUNDABLE under any circumstances. This includes any items manufactured according to your specific dimensions, shapes, quantities, or specifications. Please carefully verify your requirements before placing a custom order.

Quality Defects - How to Report
If you receive a product with quality defects, please contact us within 7 days of receipt at beeplastic@beeplastic.com. Include your order number, clear photos or videos showing the defect, and a description of the problem. Our quality team will review your case within 24 hours and provide a solution (replacement or refund) if the defect is confirmed.

Damaged During Shipping
Please inspect your order immediately upon delivery. If items are damaged during transit, contact us within 48 hours with photos of the damaged items and packaging. We will arrange a free replacement or full refund at no cost to you.

Non-Returnable Items
The following items cannot be returned: All custom-made products, items without quality defects, products damaged due to improper use or storage, and items returned without prior authorization from our team.

Refund Process
For approved returns, refunds will be processed within 10-15 business days after we receive and inspect the returned item. Refunds will be credited to your original payment method. Please allow an additional 5-7 business days for your bank or credit card company to process the refund. You will receive email confirmation once the refund is issued.

EU 14-Day Cooling-Off Period
For non-customized items shipped to EU countries, you have the right to cancel within 14 days of receipt under EU consumer protection laws. However, this right applies only to items with quality defects. Custom-made items remain non-returnable under all circumstances, as permitted by EU regulations for personalized goods.

Contact Us

For any questions about shipping or returns, please contact our customer service team:
Email: beeplastic@beeplastic.com
Response Time: Within 12 hours

We are committed to ensuring your satisfaction and will work with you to resolve any issues promptly and professionally.

CUSTOM FABRICATION

Can't Find the Right Size or Specification?

If our standard products don't match your requirements, we offer comprehensive custom fabrication services. Whether you need a specific dimension, unique shape, different thickness, or special material grade - we can manufacture it to your exact specifications.

Our Custom Capabilities

Precision Machining:

CNC machining, laser cutting, drilling, milling, and turning with ±0.03mm tolerance. Suitable for complex geometries and tight specifications.

Size Range:

Thickness: 0.5mm - 300mm

Maximum dimensions: 2000mm × 3000mm

Custom shapes: Round, square, rectangular, irregular profiles, holes, cutouts, and complex contours

Available Materials:

HDPE, PTFE, POM, Nylon, PEEK, ABS, PC, PMMA, PP, PVC, and more. Food-grade, conductive, anti-static, and flame-retardant options available.

Processing Methods:

CNC machining, laser cutting, injection molding, thermoforming, welding, and bonding. Multiple finishing options including polishing, sandblasting, and color matching.

Why Choose Custom Fabrication?

Perfect Fit: Parts manufactured to your exact specifications eliminate the need for modifications or adaptations.

No Minimum Order: Whether you need 1 piece for testing or 10,000 pieces for production, we accommodate all order sizes.

Cost Savings on Volume: Bulk custom orders receive 15-30% discount compared to purchasing multiple standard items.

Expert Technical Support: Our engineering team provides free consultation on material selection and design optimization.

Custom Order Process

Step 1: Contact us with your requirements - dimensions, material preferences, quantity, and application details. Technical drawings (PDF, CAD, DWG) are helpful but not required.

Step 2: Receive a detailed quotation within 24 hours including pricing, production lead time, and technical recommendations.

Step 3: Approve the quote and specifications. For complex projects, we can provide samples for testing before full production.

Step 4: Production begins. Typical lead time is 7-15 days depending on complexity and quantity.

Step 5: Quality inspection and shipping. Every custom piece undergoes strict dimensional checks before delivery.

Industries We Serve

Automotive components, food processing equipment, medical devices, laboratory instruments, packaging machinery, semiconductor equipment, industrial automation, and more.

Get Your Custom Quote Today

Don't see the exact size or specification you need? Let us manufacture it for you.


Contact us: beeplastic@beeplastic.com

Response time: Quote within 24 hours

What to include: Material type, dimensions, quantity, and intended application. If you have technical drawings, please attach them. If not, simply describe what you need and our team will assist you.


Not sure about material selection or specifications? No problem - our technical team will guide you through the process and recommend the best solution for your application.

Custom Plastic Fabrication

1pc to 10,000+ | ±0.03mm | No MOQ

🔧
Precision Machining
CNC milling & turning
✂️
Cutting & Engraving
Laser & waterjet cutting
🏭
Forming & Molding
Thermoforming & injection
🔗
Joining & Assembly
Welding & bonding
📐
Design & Prototyping
CAD design & samples

General

HDPE

PP

PVC

ABS

Engineering

POM

Nylon

PC

PMMA

High-Performance

PEEK

PEI

PTFE

Composites

FR-4

G10

Flexible

TPU

Silicone

Why Choose BeePlastic?

🎯
Perfect Fit
Custom specs eliminate adaptation needs
Fast Turnaround
7-15 days typical, express available
💰
Volume Savings
15-30% discount on bulk orders
🤝
Expert Support
Free engineering consultation included
📋
Submit
🔍
Review 2h
💵
Quote 24h
Production
📦
Deliver

Get Quote in 24h

Industries: Automotive • Medical • Food • Lab • Semiconductor

Free consultation → beeplastic@beeplastic.com

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