Hot Dip Galvanized Self-locking Bolts and Nuts

  • Brand: EB
  • Material Grade: 45Steel, 40Cr, A173, H7
  • Production Process: Forging
  • Surface Treatment: Blackening






    描述

    ZAlCu10 High precision Alu Cast Parts EB9090

    Hot-dip Galvanized Self-locking Bolts and Nuts

    1. Material Grade: 45 Steel, 40Cr, A173, H7, A3Steel, SS304, SS301S, SS316L, etc.
    2. Grade: 4.8, 6.8, 8.8, 10.9, 12.9
    3. Specification: M10, M12, M14, M16, M20, M22, M24, M27, M30, M33, M36, M42, M48, M52, M56, M60, M64, M68, M72, M76, M80, etc.
    4. Bolt-head Shape: Oval Head, Square Head, U-shaped bolt, etc.
    5. Application: Steel Frame Connections, Column Connections and Brake Systems

    Hot Dip Galvanized Self-locking Bolts and Nuts Chemical Composition:

    Composition (%)CSiMnCrNiCu
    45 steel0.42-0.500.17-0.370.50-0.80≤0.25≤0.30≤0.25

    Our Photos for Hot Dip Galvanized Self-locking Bolts and Nuts :

    Hot Dip Galvanized Self-locking Bolts and Nuts Hot Dip Galvanized Self-locking Bolts and Nuts Hot Dip Galvanized Self-locking Bolts and Nuts Hot Dip Galvanized Self-locking Bolts and Nuts

    • Hot dip galvanizing (HDG) is also a common surface coating for steel fasteners. It provides a very solid and durable corrosion protection.
    • The process of hot dip galvanizing is quite simple: the fasteners are dipped in a bath of molten zinc with normal temperatures around 455°C to 480°C and high temperatures between 530°C and 560°C).
    • Next, the fasteners are spun to remove the excess zinc, and then they are cooled in water to solidify the zinc.
    • What remains is a layer of zinc (40 to 70 microns) on the surface of the products that is relatively thick compared to zinc electroplating (3 to 20 microns).
    • Nuts are processed in the same way, except the nut thread is not yet formed. Nut threads must always be tapped after HDG.
    • The HDG process is commonly regarded as suitable for fasteners with diameters M8 or larger.

    Our Experience:

    • 13 Year Experience in Heat-resistant Steel Field
    • 18 Year Expertise in Wear-resistant Material Field
    • 20 Year Customer-made High Quality Castings & Forgings

    Trading Terms:

    1. The nearest seaport: Shanghai port
    2. The nearest airport: Shanghai Pudong airport
    3. Payment Terms:L/C,TT,West Union,Paypal
    4. Payment Condition:50% before production, 50% before delivery against complete set of inspection report
    5. Supply Capability:  10,000 tons per year
    6. Sample Availability: yes
    7. Sample Time:15-30 Days
    8. Packing: Plywood Cases or Steel Crates
    9. Delivery time: 45 working days per 20 tons regular castings & forgings
    10. Service: OEM, ODM or Customized

    ZAlCu10 High precision Alu Cast Parts EB9090

    1.  20-year Foundry Operation Experience.
    2. Friendly & High Efficient Technical & Commercial Communication
    3. Professional Export Practices: Exported to +60 Overseas Countries.