J-type Anchor Bolt Specifications
Parameter | Details |
Product Name | J-type Foundation Anchor Bolt, J-hook Embedded Concrete Bolt |
Standard | GB/T 799-2020 National Standard |
Structure | Integrated J-hook + full thread adjustment section, one-piece forming |
Material | Q235B Carbon Steel, Grade 4.8 / Grade 8.8 High Strength Steel |
Surface Finish | Hot-dip Galvanized, Black Oxide, Electro-galvanized |
Size Range | M12-M42, Custom Length & Bending Size Available |
Feature | High anti-pulling force, anti-overturning, durable anti-corrosion |
Application | Factory foundation, tower crane base, solar bracket, equipment anchoring |
Inspection | Dimension test, thread gauge inspection, galvanized layer thickness test |
Package | Export carton + pallet, OEM neutral packaging acceptable |
Lead Time | 3-5 days for stock sizes, 7-10 days for custom sizes |
Product Core Advantages
One-piece J-hook design provides larger concrete contact area and powerful mechanical occlusion. Effectively prevents bolt pulling out and foundation displacement, ensuring long-term stability of steel structures and equipment bases. Ideal for permanent construction foundation embedding.
Excellent Outdoor Anti-corrosion Ability
Hot-dip galvanized treatment greatly improves salt spray resistance and oxidation resistance. It can withstand long-term outdoor sun, rain and harsh weather conditions, extending service life and reducing later maintenance frequency for infrastructure projects.
Adjustable Thread Design for Easy Installation
Extended standard thread section allows flexible height adjustment and on-site leveling. It perfectly adapts to installation errors of equipment base plates and steel columns, improving construction efficiency and installation accuracy.
Full-size Customization for All Projects
Complete specifications from small equipment embedding to heavy-duty infrastructure anchoring. Custom bending angles, lengths and diameters are available according to engineering drawings, fully matching various civil and new energy construction standards.
Grade Selection Guide
Grade 4.8 Standard Type
Cost-effective and stable, suitable for general factory buildings, billboard bases and light equipment foundation fixing, widely used in conventional civil engineering projects.
Grade 8.8 High-strength Type
High tensile strength and deformation resistance, specially used for tower crane foundations, large steel structure columns and heavy mechanical equipment base anchoring with high safety requirements.
Hot-dip Galvanized Weather-resistant Type
Superior anti-corrosion performance, perfect for seaside, rainy areas and outdoor solar power projects, solving rust and aging problems of outdoor embedded fasteners.
J-type Anchor Bolt VS Straight Anchor Bolt
J-type Anchor Bolt: Hook structure provides strong occlusion and ultra-high anti-pulling force, stable for long-term heavy load, the preferred solution for permanent foundation embedding of main engineering structures.
Straight Anchor Bolt: Simple structure relying only on friction force, poor anti-pulling performance, only suitable for light load and temporary fixing, cannot meet heavy infrastructure safety standards.
Production Process
High-quality Raw Material Selection: Adopt standard carbon steel round bar with stable toughness and tensile strength.
Precision Fixed-length Cutting: Strict size control to meet engineering drawing tolerance requirements.
Integrated Bending Forming: No welding joints, uniform stress and no structural cracks.
Precision Thread Rolling: Standard thread with full gauge inspection for smooth assembly.
Professional Anti-corrosion Treatment: Uniform galvanized layer for stable outdoor protection.
Strict Finished Product Inspection: Full dimensional and appearance inspection to guarantee project quality.
Application Industries
Steel Structure Factory Construction: Steel column and beam foundation embedding.
Mechanical Equipment Base: Fixing of generators, machine tools and heavy equipment.
Solar Power Project: Photovoltaic support foundation and civil construction embedding.
Municipal Infrastructure: Billboard, street light and guardrail base fixing.
Crane & Lifting Foundation: Tower crane and elevator base anchoring.
Overseas Engineering Projects: Foreign aid construction and steel structure supporting fasteners.
Why Choose Our J-type Anchor Bolts
We are a professional manufacturer of foundation anchor bolts and construction embedded fasteners. All J-type anchor bolts are manufactured in accordance with GB/T 799-2020 national standards, with stable quality, precise size and reliable anti-corrosion performance. Stock sizes are sufficient and customized processing is fast. We provide complete inspection certificates for engineering inspection and overseas project acceptance, supplying reliable anchoring solutions for global infrastructure projects.
For standard J-type anchor bolts, custom foundation embedded bolts and construction fastener supporting solutions, please contact us for accurate quotation and technical support.
