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  • 50mm Polypropylene Insulation Fixing Washers
  • 50mm Polypropylene Insulation Fixing Washers
  • 50mm Polypropylene Insulation Fixing Washers
  • 50mm Polypropylene Insulation Fixing Washers
  • 50mm Polypropylene Insulation Fixing Washers
  • 50mm Polypropylene Insulation Fixing Washers
50mm Polypropylene Insulation Fixing Washers
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50mm Polypropylene Insulation Fixing Washers

  • 10000 - 99999 Pieces
    $0.03
  • >= 100000 Pieces
    $0.02

Customization:

Customized logo（Min.Order: 20000 pieces）
Customized packaging（Min.Order: 20000 pieces）
Graphic customization（Min.Order: 20000 pieces）
View product details

50mm Polypropylene Insulation Fixing Washers

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Insulation & Fixing: Designed to provide electrical insulation and secure components in mechanical assemblies, preventing short circuits and ensuring structural stability.
  • Customizable Thread Size: Adapts to diverse fastening requirements through tailored thread dimensions, enhancing compatibility with screws and bolts of varying specifications.

Key features

  • 1. Material Technology

    • With polypropylene material, ensure corrosion resistance and electrical insulation, outperforming metal washers in harsh environments*

  • 2. Interactive Design

    • With customizable thread size, adapt to various bolt specifications effortlessly, offering greater flexibility than standard washers*

  • 3. Performance Parameters

    • With a 50mm diameter and robust design, support heavy loads while maintaining structural integrity at temperatures up to 100°C, surpassing plastic washers in durability*

  • 4. Scenario Solutions

    • Ideal for electrical installations and mechanical assemblies, preventing current leakage and reducing vibration in both industrial machinery and home appliances*

  • 5. Certification Standards

    • Complies with ISO 9001 quality management standards, ensuring consistent reliability for commercial and industrial use*

Product details

50mm Polypropylene Insulation Fixing Washers

The 50mm Polypropylene Insulation Fixing Washers are versatile components designed for industrial and mechanical applications, offering customizable functionality through radial spoke or concentric hole patterns. Crafted from durable polypropylene, these washers provide electrical insulation and adaptability for precise mounting and fluid management.

Technical specifications

FeatureSpecificationApplication Scenario
MaterialPolypropyleneElectrical insulation in machinery
Size50mm diameterStandard mounting holes
FinishPlainSmooth surface for secure fastening
Thread SizeCustomizableAdapts to various bolt/thread systems
Hole PatternRadial spokes/concentric circlesFluid distribution or ventilation

Customization guide

Adjustable hole patterns (radial spokes or concentric circles) to meet specific functional needs like fluid distribution or ventilation. Thread size customization ensures compatibility with diverse bolt specifications.

Get inspired

These washers are ideal for applications requiring both insulation and structural support. For instance, radial-spoke designs can evenly distribute fluids in HVAC systems, while concentric-circle patterns enhance airflow in industrial filters.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Thread CustomizationStandard sizes+20% customization+40% full customization*
Material OptionsPolypropylene only+Nylon/steel+Stainless steel
Hole Pattern ComplexitySimpleModerateAdvanced (custom designs)
Insulation RatingBasic (IEC 60664)+15% enhanced+30% premium*

Supplier's note

  1. Technical Breakthroughs:

    • Polypropylene material delivers superior corrosion resistance and insulation (IEC 60664 compliance).
    • Customizable thread sizes enable precise fitment across industries like automotive and robotics.
    • Adaptable hole patterns allow tailored functionality (e.g., radial spokes for fluid distribution).

  2. Optimal Version Selection:

    • Base Model: Ideal for standard applications (e.g., basic machinery assembly).
    • Advanced Model: Suitable for moderate customization needs, such as HVAC systems requiring nylon compatibility.
    • Pro Model: Best for high-demand scenarios (e.g., corrosive environments using stainless steel) where advanced hole patterns and insulation are critical.

With the Pro Model’s +30% enhanced insulation, you can safely handle high-voltage equipment. Pair its stainless steel material with radial spokes to ensure durable fluid management in industrial pumps.

Frequently asked questions

  • Which washer size suits electrical installations requiring insulation?

  • How to clean and maintain polypropylene insulation washers?

  • Polypropylene vs Metal: Which is better for insulation in machinery?

  • Can thread size of 50mm polypropylene washers be customized?

  • Is polypropylene insulation washer material certified for electrical safety?

  • Why choose plain-finish washers over treated surfaces for insulation?

  • What applications are best for 50mm insulation fixing washers?

  • How does the design of 50mm polypropylene washers enhance durability?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Insulation WashersElectrical insulation, machineryMaterial: Polypropylene (ASTM D790 flexural modulus 1000 psi ▲)
Insulation Resistance: 10¹² Ω (ASTM D257)
Customizable Thread: ISO 2768 ▲
Surface Finish: Ra 0.8 µm (ISO 4287)		Excellent insulation, lightweight, customizable thread sizes, cost-effectiveLower load capacity (max 1500 N), limited to 100°C, not corrosion-resistant without coating
Flat WashersGeneral mechanical load distributionMaterial: Steel (ASTM A194)
Thickness: 2.0 mm (ASME B18.21.1)
Surface Finish: Zinc Plated (ASTM B695)		High load capacity (5000 N+), durable, widely availableNo insulation, heavier, may corrode without coating (salt spray test: 500 hours max)
Spring WashersVibration-resistant fasteningMaterial: Steel (ASTM A240)
Spring Force: 50 N/mm (ISO 7999)
Thickness: 1.5 mm		Effective against vibration, reusable, maintains tension (3000 N preload)May wear out over time, not insulating, limited to -40°C to 120°C
Lock Washers (Split)Secure fasteners in high-vibrationMaterial: Steel (ASTM A194)
Split Design: 15° angle (ISO 7089)		Prevents loosening (95% retention under 50 Hz vibration), durableNot insulating, may damage threads, limited to M6–M24 thread sizes
High-Temperature WashersHigh-temperature machineryMaterial: Ceramic (ASTM C314)
Temp Resistance: Up to 600°C (ISO 1371-1)
Chemical Resistance: ASTM C702		Withstands extreme temps, chemically inert (resists sulfuric acid @ 98%)Brittle (impact strength: 0.5 MPa), expensive, less customizable
Corrosion-Resistant WashersCorrosive environmentsMaterial: Stainless Steel 316 (ASTM A182)
Passivation: ASTM A967
Thickness: 3.0 mm (ASME B16.5)		Superior corrosion resistance (ASTM B117: 1000+ hours salt spray)Higher cost (2x steel), heavier, less flexible in customization

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