1–2pcs PEEK Plastic Hex Socket Cap Screws M4–M8 for Heat & Electrical Insulation
Expected Delivery on - .
Free Shipping & Return
Money back guarantee
Fast & reliable support
Secure payment
Free standard shipping provided, no shipping fee required. Contact customer service for expedited shipping. Return within 30 days, duties & taxes non-refundable.
- M4 (2pcs) / 2mm - $25.36
- M5 (2pcs) / 2mm - $25.98
- M6 (2pcs) / 2mm - $26.34
- M8 (1pc) / 2mm - $26.76
- M4 (2pcs) / 3mm - $27.08
- M5 (2pcs) / 3mm - $27.86
- M6 (2pcs) / 3mm - $28.34
- M8 (1pc) / 3mm - $28.76
- M4 (2pcs) / 4mm - $28.96
- M5 (2pcs) / 4mm - $29.96
- M6 (2pcs) / 4mm - $30.34
- M8 (1pc) / 4mm - $29.15
- M4 (2pcs) / 5mm - $31.19
- M5 (2pcs) / 5mm - $31.05
- M6 (2pcs) / 5mm - $30.39
- M8 (1pc) / 5mm - $29.45
- M4 (2pcs) / 6mm - $31.17
- M5 (2pcs) / 6mm - $31.05
- M6 (2pcs) / 6mm - $31.19
- M8 (1pc) / 6mm - $30.12
- M4 (2pcs) / 7mm - $31.28
- M5 (2pcs) / 7mm - $31.09
- M6 (2pcs) / 7mm - $31.89
- M8 (1pc) / 7mm - $30.70
- M4 (2pcs) / 8mm - $31.56
- M5 (2pcs) / 8mm - $30.08
- M6 (2pcs) / 8mm - $32.27
- M8 (1pc) / 8mm - $30.98
- M4 (2pcs) / 10mm - $31.89
- M5 (2pcs) / 10mm - $30.08
- M6 (2pcs) / 10mm - $32.85
- M8 (1pc) / 10mm - $31.12
- M4 (2pcs) / 12mm - $32.23
- M5 (2pcs) / 12mm - $30.12
- M6 (2pcs) / 12mm - $33.15
- M8 (1pc) / 12mm - $31.25
- M4 (2pcs) / 16mm - $32.35
- M5 (2pcs) / 16mm - $30.33
- M6 (2pcs) / 16mm - $33.45
- M8 (1pc) / 16mm - $32.58
- M4 (2pcs) / 20mm - $32.75
- M5 (2pcs) / 20mm - $30.32
- M6 (2pcs) / 20mm - $34.11
- M8 (1pc) / 20mm - $32.85
- M4 (2pcs) / 25mm - $33.05
- M5 (2pcs) / 25mm - $30.48
- M6 (2pcs) / 25mm - $34.58
- M8 (1pc) / 25mm - $33.12
- M4 (2pcs) / 30mm - $33.15
- M5 (2pcs) / 30mm - $31.58
- M6 (2pcs) / 30mm - $35.05
- M8 (1pc) / 30mm - $33.75
- M4 (2pcs) / 35mm - $33.45
- M5 (2pcs) / 35mm - $31.89
- M6 (2pcs) / 35mm - $35.08
- M8 (1pc) / 35mm - $33.99
- M4 (2pcs) / 40mm - $33.62
- M5 (2pcs) / 40mm - $32.47
- M6 (2pcs) / 40mm - $35.45
- M8 (1pc) / 40mm - $34.02
- M4 (2pcs) / 45mm - $33.98
- M5 (2pcs) / 45mm - $32.89
- M6 (2pcs) / 45mm - $35.98
- M8 (1pc) / 45mm - $34.13
- M4 (2pcs) / 50mm - $34.12
- M5 (2pcs) / 50mm - $33.05
- M6 (2pcs) / 50mm - $36.12
- M8 (1pc) / 50mm - $34.45
- M4 (2pcs) / 55mm - $34.45
- M5 (2pcs) / 55mm - $33.56
- M6 (2pcs) / 55mm - $36.45
- M8 (1pc) / 55mm - $34.58
- M4 (2pcs) / 60mm - $34.75
- M5 (2pcs) / 60mm - $34.01
- M6 (2pcs) / 60mm - $36.99
- M8 (1pc) / 60mm - $34.85
- M4 (2pcs) / 65mm - $34.89
- M5 (2pcs) / 65mm - $34.45
- M6 (2pcs) / 65mm - $37.18
- M8 (1pc) / 65mm - $35.08
- M4 (2pcs) / 70mm - $35.86
- M5 (2pcs) / 70mm - $35.12
- M6 (2pcs) / 70mm - $37.58
- M8 (1pc) / 70mm - $35.47
- M4 (2pcs) / 80mm - $35.96
- M5 (2pcs) / 80mm - $35.78
- M6 (2pcs) / 80mm - $37.99
- M8 (1pc) / 80mm - $35.78
- M4 (2pcs) / 85mm - $36.54
- M5 (2pcs) / 85mm - $36.78
- M6 (2pcs) / 85mm - $37.45
- M8 (1pc) / 85mm - $36.21
- M4 (2pcs) / 90mm - $37.45
- M5 (2pcs) / 90mm - $37.00
- M6 (2pcs) / 90mm - $38.97
- M8 (1pc) / 90mm - $37.33
- M4 (2pcs) / 100mm - $38.86
- M5 (2pcs) / 100mm - $38.15
- M6 (2pcs) / 100mm - $39.15
- M8 (1pc) / 100mm - $38.54
1–2pcs PEEK Plastic Hex Socket Cap Screws M4–M8 for Heat & Electrical Insulation
PRODUCT DETAILS
PEEK Hex Socket Head Cap Screws – Heat-Resistant & Non-Conductive Fasteners M4 to M8, 2–100mm
🔧 High-Temperature PEEK Plastic Screws for Electronics, Machinery & Industrial Insulation
Need precision fasteners that can withstand high heat and resist electricity? These PEEK (Polyether ether ketone) hex socket cap screws are engineered for thermal insulation, non-conductive performance, and chemical resistance in demanding environments.
Ideal for use in electronic circuit boards, electrical enclosures, high-voltage systems, lab equipment, and custom machinery, these plastic screws outperform traditional metal fasteners in insulation-critical applications.
Available in metric thread sizes M4 to M8 and lengths from 2mm to 100mm (0.08"–3.94"), with custom sizing supported.
⚙️ Product Features & Benefits
-
100% PEEK Material
Made from high-performance PEEK for excellent thermal and electrical insulation. -
Extreme Heat Resistance
Withstands temperatures up to 260°C (500°F) — perfect for high-temp assemblies. -
Non-Conductive
Protects sensitive components from short circuits and electrical interference. -
Corrosion & Chemical Resistant
Performs reliably in harsh environments where metal screws degrade. -
Hex Socket Head Cap Design
Enables efficient installation with precise torque and strong fastening. -
Available Sizes
-
Thread sizes:
M4 (≈ 0.157")
M5 (≈ 0.197")
M6 (≈ 0.236")
M8 (≈ 0.315") -
Lengths:
2mm to 100mm (≈ 0.08" to 3.94")
-
🛠 Recommended Applications
These heat-resistant plastic screws are the go-to choice for:
-
PCB and electronic assembly
-
Electrical insulation in high-voltage equipment
-
Medical and lab device manufacturing
-
Aerospace and automotive prototypes
-
Custom-built enclosures and 3D printer modules
PEEK screws offer unmatched balance between mechanical strength and non-metallic insulation, ideal for advanced engineering use.
📦 Product Details
-
Material: Pure PEEK (Polyether ether ketone)
-
Screw Type: Machine Screws
-
Head Style: Round Cap Head
-
Drive Style: Hex Socket
-
Available Threads: M4 / M5 / M6 / M8
-
Available Lengths: 2mm – 100mm
-
Package Quantity: 1 or 2pcs per set
-
Certification: CE Certified
-
Custom Orders: Supported – we can cut to any dimension or produce non-standard threads
✅ Why Choose BeePlastic?
At BeePlastic, we understand what engineers and manufacturers need:
-
✔️ A wide range of high-performance plastic materials
-
✔️ Support for custom CNC machining and fabrication
-
✔️ Fast turnaround and international shipping
-
✔️ Responsive service that helps you reduce procurement costs
-
✔️ Transparent pricing for both small and bulk orders
We don’t just sell fasteners. We help you get the right plastic solutions at the right price.
🛒 Ready to Buy or Customize?
Need durable, high-temperature screws today? Select your size and order now.
Looking for M2, M10, or special dimensions? We offer custom PEEK screw production tailored to your specs.
👉 [Buy Standard Sizes – M4 to M8, 2mm to 100mm]
👉 [Request Custom Screws or Bulk Pricing]
❓ Frequently Asked Questions
Q1: What makes PEEK better than other plastics for screws?
PEEK offers high tensile strength, heat resistance up to 260°C, and exceptional chemical resistance — ideal for demanding industrial and electronic applications.
Q2: Are these screws safe for PCB or power supply assembly?
Yes. PEEK screws are non-conductive and won’t short circuit your sensitive components.
Q3: Can I order other sizes like M2.5 or M10?
Absolutely. We support full customization — just contact us with your requirements.
Q4: Do you offer bulk pricing for manufacturers?
Yes, we offer OEM and volume discounts for industrial buyers.
Q5: How fast is shipping to the U.S. and Europe?
Standard orders ship in 3–5 business days. Custom orders typically ship in 5–10 days.
📏 Size Chart (Metric to Inch)
| Metric (mm) | Inch (approx.) |
|---|---|
| 2mm | 0.08" |
| 10mm | 0.39" |
| 25mm | 0.98" |
| 50mm | 1.97" |
| 100mm | 3.94" |
📌 Need a size not listed? We can machine it.
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.
RECOMMENDED PRODUCTS
Custom Plastic Fabrication
1pc to 10,000+ | ±0.03mm | No MOQ
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?
Get Quote in 24h
Industries: Automotive • Medical • Food • Lab • Semiconductor
Free consultation → beeplastic@beeplastic.com
RECENTLY VIEWED PRODUCTS
24H QUOTE DELIVERY
Upload CAD, get quote in 24 hours
FREE RETURNS
30-days free return policy.
SECURED PAYMENTS
We accept all credit cards.
24/7 HELP CENTER
Dedicated 24/7 support





















