Brass Self Locking Expansion Insert

Brass Self Locking Expansion Insert
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Brass Self Locking Expansion Insert

DBI-021

In order to provide safe and vibration-resistant fastening in soft materials including plastic, wood, fiberboard, and composite materials, Dutux Brass Self Locking Expansion Inserts (DBI-021) are specially engineered threaded inserts. In order to establish a robust mechanical lock inside the base material, these inserts include a self-locking expansion design with vanes that expand during installation.

These inserts provide outstanding corrosion resistance, durability, and dependable performance in demanding applications because they are made from premium free cutting brass. By ensuring a tight fit, the expansion mechanism maximizes pull-out resistance and prevents rotation.

Automotive assembly, electronics housings, furniture fittings, and plastic components all frequently employ Dutux Brass Self Locking Expansion Inserts. In accordance with client designs or samples, custom sizes and specifications can also be produced.

Product Future

  • Manufactured from high-quality forged brass for maximum strength
  • Leak-proof and secure connection for tubing systems
  • Excellent corrosion resistance for long service life
  • High dimensional accuracy for precise fitting
  • Deep groove design for maximum pull-out resistance
  • Threads manufactured according to international Go & No-Go gauge standards
  • Smooth internal and external surfaces for better performance
  • High heat transfer efficiency
  • Suitable for high pressure and vibration environments
  • Easy installation and assembly
  • Compatible with SAE, ASA, and ARI standards for tube fittings
  • Durable and reliable performance in industrial applications

OEM & Customization Capabilities

  • Custom thread sizes and dimensions
  • Manufacturing based on customer drawings and specifications
  • Private labeling with customer brand name
  • Custom material composition
  • Special surface finishing or coating
  • Flexible packaging options

Applications

  • Air Conditioning Systems
    Hydraulic Systems
    Marine Equipment
    Mechanical Systems
    Refrigeration Systems

Finishing & Coating

  • Natural Finish
    Golden Finish
    Silver Finish
    Nickel Plated
    Chrome Plated
    Tin Plated

Product Specifications

Thread Size Length (L) ØD Vane Count Pilot Hole
M2.5 4.8 mm 5.35 mm 1 4.5 – 4.7 mm
M3 4.8 mm 5.35 mm 1 4.5 – 4.7 mm
M3.5 4.8 mm 6.0 mm 1 5.2 – 5.4 mm
M4 9.5 mm 6.65 mm 2 5.8 – 6.0 mm
M5 9.5 mm 7.35 mm 2 6.5 – 6.7 mm
M6 9.5 mm 9.05 mm 2 8.2 – 8.4 mm
M8 14.3 mm 12.45 mm 3 11.8 – 12.0 mm

Material

  • Brass / Copper Alloy

    Free Cutting Brass IS 319 Type (I)
    Free Cutting Brass as per BS 249 Type (I)

    Other available grades:

    CZ121
    CZ131
    C3604
    CDA360
    DTD627

Packing Details

  • Poly Bag Packaging

  • Box Packing

  • Inner Plastic Packing

  • Carton Packaging

  • Wooden Carton Packing (Export Packaging)

Order Details

  • MOQ: 1000 Pieces

    Lead Time: 3 Working Days

    Available Price Terms:

    EX-Work
    FOB – Free On Board
    C&F – Cost and Freight
    CIF – Cost, Insurance and Freight