J type Foundation bolt / Round hook bolt
J-type foundation bolts feature a round hook shape at one end, embedded into concrete to provide strong anchorage. Ideal for structural and mechanical applications, these bolts offer reliable pull-out resistance and are often used in pole bases, towers, and foundation plates.
Key Features
- Hook-shaped bend ensures enhanced grip in concrete
- Available with customized thread lengths and finishes
- Compatible with nuts, washers, and sleeves
- Suitable for light to heavy foundation work
- Manufactured as per IS, ASTM, and DIN standards
Technical Specifications
- Material: - Mild Steel, Carbon Steel, Stainless steel, Alloy steel, as per customer requirement
- Grade: - 4.6, 5.8, 8.8, 10.9, En8, Is2062, as per requirement
- Shape: - L, U, J, T, Eye, Y, Plate, Pipe Stiffener, Sag Rod, Custom
- Size: - Diameter: - M12 to M65 mm or ½” to 2.1/2”
- Length: - up to 3000 mm
- Thread type: - Metric, BSW, UNC as per customer requirement
- Thread Length: - up to 500mm
- Surface finish: - Black, Galvanized Zinc, Hot deep Galvanized, Paint, Red Oxidize, as per customer requirement
- Country of origin: - INDIA
- Usage: - Industrial, Construction, Automotive Parts
Manufacturing Method & Tolerances
Manufacturing Method:
These bolts are bent into a smooth J-shape using hydraulic machines after hot or cold forging. Threads are applied using precision CNC threading equipment. Additional components like nuts and sleeves can be assembled as per customer request.
Tolerances:
- Threading: As per IS/DIN/ASTM threading standards
- Dimensional: ±1mm unless otherwise specified
- Custom tolerances accepted with technical drawings
Applications & Usage
- Widely used in street light and traffic signal pole foundations
- Ideal for anchoring pipe supports, towers, and frames
- Used in precast panels, industrial buildings, and base plates
- Strong grip for vibration-sensitive foundations
- Versatile solution for medium to heavy foundation anchoring
Need reliable J-type foundation bolts for your next installation?
We manufacture hook-style anchor bolts with precision threads and fast turnaround.
Send InquiryFaq
J type foundation bolts are designed for anchoring and securing heavy equipment, steel structures, and machinery, especially in areas requiring high tensile strength.
J type foundation bolts are designed to withstand high tensile loads and offer exceptional strength, making them suitable for heavy-duty applications.
J type bolts are available in diameters ranging from 12mm to 40mm, with lengths that can be customized.
Yes, J type bolts are available with corrosion-resistant coatings such as galvanized or epoxy finishes for use in harsh environments.
Yes, J type bolts can be designed to meet seismic standards and ensure safety in earthquake-prone areas.
The length depends on the thickness of the foundation and the load-bearing requirements. Our team can help you with accurate specifications.
