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Hexagon Head Steel Structure Bolt Steel Buildings Kits , Bolts And Fasteners

Categories Steel Buildings Kits
Place of Origin: Zhejiang, China
Brand Name: FAMOUS
Certification: ISO9001:2008, SGS,CE etc.
Model Number: OWN
MOQ: 1 pcs
Price: USD1500~USD2000 per ton
Packaging Details: Seaworthy packings into container or bulk vessel
Delivery Time: Based on client's needs
Payment Terms: L/C,T/T
Supply Ability: 100,00 tons per Year
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    Hexagon Head Steel Structure Bolt Steel Buildings Kits , Bolts And Fasteners


    Hexagon Head Steel Structure Bolt Steel Buildings Kits , Bolts And Fasteners


    High Tension Hex Bolts


    Our hot dip galvanized high tension hex bolts have been tested according to national building codes for corrosion resistance, mechanical performance, holding performance, delayed mechanical failure characteristics and actual performance, and have received general certification from the Land, Infrastructure and Transport Minister.

    High tension hex bolts (M12 – M30) used in steel frame building and bridge construction are also a key product.

    “Anti-rust treated high tension hex bolts” are treated with a primer coat prevent rust in corrosive coastal or at-sea applications.
    High tension hex bolts are thus suited for any environment and play an important role in supporting the construction industry of the future.

    Our hot dip galvanized high tension hex bolts have been tested according to national building codes for corrosion resistance, mechanical performance, holding performance, delayed mechanical failure characteristics and actual performance, and have received general certification from the Land, Infrastructure and Transport Minister.


    Features


    Plating adhesion for bolts, nuts and washers greater than 550g/m2.

    Plating adhesion is managed according to the same criteria as parts plating too deliver long life maintenance-free anti-corrosion performance.


    During the galvanization process, acid washing is avoided to the extent possible to prevent hydrogen intrusion and eliminate concern of delayed failure.
    Nuts undergo a special lubrication process to ensure stable axial force during tightening through the nut angle method.


    Specification of ASTM A325 Heavy Hex Structural Bolt:
    1. Types:

    TYPE 1

    Medium carbon, carbon boron, or medium carbon alloy steel.

    TYPE 2

    Withdrawn November 1991.

    TYPE 3

    Weathering steel.

    T

    Fully threaded A325. (Restricted to 4 times the diameter in length)

    M

    Metric A325.

    2. Connection Types:

    SC

    Slip critical connection.

    N

    Bearing type connection with threads included in the shear plane.

    X

    Bearing-type connection with threads excluded from the shear plane.


    Recommended Nuts and Washers:

    Nuts

    Washers

    Type 1

    Type 3

    Type 1

    Type 3

    Plain

    Galvanized

    Plain




    F436-1

    F436-3

    Note: Nuts conforming to A194 Grade 2H are a suitable substitute for use with A325heavy hex structural bolts. The ASTM A563 Nut Compatibility Chart has a complete list of specifications.



    Specification of ASTM A490 Heavy Hex Structural Bolt:
    1. Types:

    TYPE 1

    Medium carbon and alloy steel.

    TYPE 2

    Withdrawn in 2002.

    TYPE 3

    Weathering steel.

    M

    Metric A490.

    2. Connection Types:

    SC

    Slip critical connection.

    N

    Bearing type connection with threads included in the shear plane.

    X

    Bearing type connection with threads excluded from the shear plane.

    3. Mechanical Properties:

    Size

    Tensile, ksi

    Yield, ksi

    Elong. %, min

    RA %, min

    1/2 - 1-1/2

    150-173

    130

    14

    40


    Type 3 Bolts

    Element

    Sizes 1/2 to 3/4

    Size above 3/4

    Carbon

    0.20 - 0.53%

    0.30 - 0.53%

    Manganese, min

    0.40%

    0.40%

    Phosphorus, max

    0.035%

    0.035%

    Sulfur, max

    0.040%

    0.040%

    Copper

    0.20 - 0.60%

    0.20 - 0.60%

    Chromium, min

    0.45%

    0.45%

    Nickel, min

    0.20%

    0.20%

    or



    Molybdenum, min

    0.15%

    0.15%


    Recommended Nuts and Washers:

    Nuts

    Washers

    Type 1

    Type 3

    Type 1

    Type 3

    A563DH

    A563DH3

    F436-1

    F436-3


    various bolts for steel structure frames are available in storage. they are proofed high performance by our millions of structural projects. Welcome your trial order and visit.


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