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  • M2 M3 M4 M5 M6 M8 Brass Nut Knurled Thread Inserts Insert Nuts
  • M2 M3 M4 M5 M6 M8 Brass Nut Knurled Thread Inserts Insert Nuts
  • M2 M3 M4 M5 M6 M8 Brass Nut Knurled Thread Inserts Insert Nuts
  • M2 M3 M4 M5 M6 M8 Brass Nut Knurled Thread Inserts Insert Nuts
  • M2 M3 M4 M5 M6 M8 Brass Nut Knurled Thread Inserts Insert Nuts
  • M2 M3 M4 M5 M6 M8 Brass Nut Knurled Thread Inserts Insert Nuts
M2 M3 M4 M5 M6 M8 Brass Nut Knurled Thread Inserts Insert Nuts

M2 M3 M4 M5 M6 M8 Brass Nut Knurled Thread Inserts Insert Nuts

  • 10 - 999 Pieces
    $1.28
  • >= 1000 Pieces
    $0.50

Customization:

CNC Milling machining（Min.Order: 1 pieces）
CNC Turning machining（Min.Order: 1 pieces）
Graphic customization（Min.Order: 1 pieces）
Customized logo（Min.Order: 1 pieces）
View product details

M2 M3 M4 M5 M6 M8 Brass Nut Knurled Thread Inserts Insert Nuts

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Secure Thread Creation: Designed to create durable threads in plastics and non-threaded materials, enabling reliable fastening with screws/bolts.
  • Versatile Thread Sizes: Available in M2 to M8 sizes, accommodating diverse application requirements.

Key features

  • 1. Corrosion-Resistant Brass Construction

    • With corrosion-resistant brass material, ensure long-lasting durability in moist or chemical environments*

  • 2. Knurled Surface Design

    • With a knurled surface, prevent rotation during installation for secure fastening in tight spaces*

  • 3. Comprehensive Thread Size Range

    • With M2 to M8 thread sizes, accommodate diverse material thicknesses and applications, from electronics to automotive*

Product details

M2 M3 M4 M5 M6 M8 Brass Nut Knurled Thread Inserts Insert Nuts

M2 to M8 Brass Threaded Inserts are precision-engineered fasteners designed to reinforce threaded connections in plastic and non-metallic materials. Crafted from brass, steel, or stainless steel, these knurled inserts offer corrosion resistance, mechanical strength, and customizable thread sizes to meet diverse industrial and consumer applications.

Technical specifications

FeatureSpecificationApplication Scenario
MaterialBrass, Steel, Stainless SteelElectrical components (brass), heavy-duty machinery (steel), corrosive environments (stainless steel)
Thread Size RangeM2, M3, M4, M5, M6, M8Miniature electronics (M2), automotive parts (M6/M8)
Surface TreatmentStainless Steel Coating (optional)Marine or chemical processing equipment
Body StyleCylindrical, Conical, HexagonalAerospace (hexagonal), household goods (cylindrical)
Thread TypeMetric ThreadsGlobal industrial standards compatibility

Customization guide

Adjustable parameters include material composition (brass/steel/stainless steel) for corrosion or conductivity needs, thread size (M2–M8) to fit component dimensions, and surface finish (knurled or smooth) to enhance grip or aesthetics.

Get inspired

With M2 brass inserts, you can secure delicate electronic components, while M8 stainless steel inserts ensure long-term durability in outdoor machinery. Their knurled surfaces prevent rotation, making them ideal for vibration-prone environments.

Choose your model

ParameterBase Model (Brass)Advanced Model (Steel)Pro Model (Stainless Steel)
MaterialBrassSteelStainless Steel
Corrosion ResistanceStandard+15%+30%*
Thread Load Capacity100 N120 N130 N
Temperature Range-20°C to 120°C-30°C to 150°C-40°C to 200°C

Supplier's note

  1. Technical Breakthroughs:

    • Material Diversity: Three material options (brass/steel/stainless steel) enable tailored performance for conductivity (brass), strength (steel), or corrosion resistance (stainless steel).
    • Enhanced Corrosion Resistance: The Pro Model’s stainless steel coating exceeds industry standards by 30%, ideal for marine or chemical environments.
    • Precision Threads: Metric thread tolerances ensure 20% tighter fits than traditional inserts, reducing slippage in dynamic machinery.

  2. Optimal Version Selection:

    • Base Model: Suitable for general-purpose applications (e.g., household appliances) where cost efficiency is prioritized.
    • Advanced Model: Recommended for heavy-duty machinery (e.g., automotive parts) needing 15% higher load capacity than standard brass.
    • Pro Model: Best for corrosive or extreme-temperature scenarios (e.g., offshore equipment) due to tripled corrosion resistance and heat tolerance.

*Compared to industry benchmarks (ASTM F544).

Frequently asked questions

  • Which brass threaded insert size (M2-M8) is best for lightweight electronics assemblies?

  • How to clean and store brass threaded inserts to prevent corrosion?

  • Brass vs Stainless Steel Inserts: Which is better for marine applications?

  • Can these brass inserts be customized for non-standard thread sizes or finishes?

  • Are these inserts RoHS compliant for electronics manufacturing use?

  • Do these inserts require special tools for installation in plastic parts?

  • Are brass threaded inserts suitable for high-vibration machinery parts?

  • What thread standards (metric/imperial) do your brass inserts support?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Material CompositionHigh-stress industrial applicationsBrass (ASTM B285) / Stainless Steel (ASTM A240) / Steel (ASTM A36)▲ Our Advanced: Stainless Steel resists corrosion 3x better (ASTM B117 salt spray test).
Base: Brass offers cost-effective durability.		Higher cost for stainless steel; steel may corrode in harsh environments.
Thread Size RangeCustomized fastening needsM2–M8 metric threads (ISO 23-1)Supports precise fitting for electronics (M2), automotive (M6–M8), and machinery (M5).Limited to metric sizes; non-metric applications require adapters.
Corrosion ResistanceMarine/aerospace environmentsBase: Brass (1000+ hours neutral salt spray)
Advanced: Stainless Steel (2000+ hours)		▲ Our Advanced: Stainless Steel withstands 50% more chemical exposure (ASTM D543).Base brass may corrode in acidic conditions without protective coatings.
Surface TreatmentHigh-vibration machineryKnurled finish (ISO 1309) / Passivated (ASTM A967)▲ Our Advanced: Passivated surface reduces wear by 40% in abrasive settings.Knurled surfaces may require additional lubrication for installation.
Electrical ConductivityElectrical enclosuresBase: Brass (1.5×10⁷ S/m)
Advanced: Stainless Steel (1.3×10⁷ S/m)		▲ Industry Standard: Plastic inserts are non-conductive. Our Base: Conductive for grounding.Stainless Steel offers lower conductivity than brass for critical circuits.
Installation EaseDIY/rapid assemblyTapped insertion (ISO 2768) / Self-tapping▲ Our Advanced: Self-tapping design reduces prep time by 30%.
Base: Requires pre-drilled holes.		Advanced versions may strip in soft materials like thin plastics.

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