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Hot Dip Galvanized Steel Buildings Kits Hexagon Socket Head Bolt , Metal Buildings Kits

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Hot Dip Galvanized Steel Buildings Kits Hexagon Socket Head Bolt , Metal Buildings Kits

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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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Hot Dip Galvanized Steel Buildings Kits Hexagon Socket Head Bolt , Metal Buildings Kits

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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