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High-Quality Foundation Anchor Bolts - L, J, and 9 Shape Bolts from China Suppliers & Factory

Discover our premium-quality products sourced directly from trusted manufacturers in China. We collaborate with leading suppliers to ensure that our offerings meet the highest standards of excellence and reliability. Our factory specializes in producing innovative solutions tailored to meet diverse needs, making us a preferred choice among businesses worldwide. Whether you are looking for unique designs or bulk orders, our commitment to quality and service sets us apart in the industry. Partner with us today and experience the best that Chinese manufacturing has to offer!
  • Sizes: Metric sizes range from M8-M64, inch sizes range from 1/4 '' to 2 1/2 ''.
  • Package Type: carton or bag and pallet.
  • Payment terms: T/T, L/C.
  • Delivery Time: 30 days for one container.
  • Trade Term: EXW, FOB, CIF, CFR.

Production Parameter

Foundation Anchor Bolt L Shape Bolt 9 Shape Bolt J Shape Bolt Hdg Bolt (5)dnc
Thread size d M8 M10 M12 M16 M20 M24 M30 M36 M42 M48 M56 M64 M72
P pitch 1.25 1.5 1.75 2 2.5 3 3.5 4 4.5 5 5.5 6 6
b Deviation value(+2P,0) 31 36 40 50 58 68 80 94 106 120 140 160 180
L1 46 65 82 93 127 139 192 244 261 302 343 385 430
D 10 15 20 20 30 30 45 60 60 70 80 90 100
x Max 3.2 3.8 4.3 5 6.3 7.5 9 10 11 12.5 14 15 15

Production Description

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Please let us know the specific sizes you need so that we could offer the best solutions.

When the mechanical member is installed on a concrete foundation, the J-shaped and L-shaped end of the bolt is embedded in the concrete for use.

The tensile capacity of the anchor bolt is the tensile capacity of the round steel itself, the size is equal to the section area multiplied by the allowable stress value (Q235B:140MPa, 16Mn or Q345:170MPA) is the allowable tensile capacity of the design.

Anchor bolts are generally made of Q235 steel, which is light round. Rebar (Q345) strength, do not make the nut of the wire buckle light round easy. For the optical anchor bolt, the burial depth is generally 25 times of its diameter, and then make a 90-degree bending hook about 120mm long. If the bolt diameter is very large (such as 45mm) and the buried depth is too deep, you can weld the square plate at the end of the bolt, that is, make a big head (but there are certain requirements). The buried depth and bent hook are to ensure the friction between the bolt and the foundation, so that the bolt will not be pulled out.

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Foundation bolts, also known as anchor bolts, are used for many industrial and civil engineering purposes. Typically, they secure structural elements to foundations, but they serve other significant functions, such as moving heavy objects and fastening heavy machines to foundations to ensure safe and effective operation. This range means selecting the right choice among the different foundation bolt types is crucial. Your chosen bolt should withstand the forces it will experience in action and work well with the structural elements and machinery.

Frequently Asked Questions (FAQ)

What are the primary uses of foundation anchor bolts?
Foundation bolts, also known as anchor bolts, are primarily used to secure structural elements to foundations. They also serve other critical functions, such as moving heavy objects and fastening heavy machinery to foundations to ensure safe and efficient operation.
How is the tensile capacity of an anchor bolt calculated?
The tensile capacity of an anchor bolt is determined by the tensile strength of the round steel itself. It is calculated by multiplying the section area of the bolt by the allowable stress value (such as 140MPa for Q235B steel, or 170MPa for 16Mn / Q345 steel).
What materials are typically used for manufacturing anchor bolts?
Anchor bolts are generally manufactured using Q235 light round steel. While rebar (Q345) offers higher strength, light round steel is typically preferred because it makes threading and securing the nut much easier.
What is the standard burial depth and hook design for anchor bolts?
For standard optical anchor bolts, the burial depth is generally 25 times the diameter of the bolt. Additionally, a 90-degree bending hook of approximately 120mm in length is created at the end. This depth and hook configuration ensure sufficient friction to prevent the bolt from pulling out of the concrete foundation.
How do you secure large-diameter anchor bolts when deep burial is not feasible?
If the bolt diameter is very large (e.g., 45mm) and the required burial depth is too deep, you can weld a square plate to the end of the bolt to create a larger anchoring head, provided it meets specific engineering requirements.
How are J-shaped and L-shaped anchor bolts installed?
When installing mechanical members on concrete foundations, the J-shaped or L-shaped hook end of the anchor bolt is directly embedded into the concrete during the pouring process to create a secure anchor.

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