M4, M5, M6 J shaped stainless steel carbon steel galvanized J hook metal bolts

M4, M5, M6 J shaped stainless steel carbon steel galvanized J hook metal bolts

1,Description:

L BOLT (L-shaped bolt/L-shaped anchor bolt) is a fastener shaped like the letter ‘L’, also known as a right-angle anchor bolt, 7-shaped anchor bolt, or straight-hook anchor bolt. Its primary applications are as follows:
Main Applications
1. Building and Civil Engineering
Securing steel structures: Used to anchor steel columns, beams, and other structural components to concrete foundations
Connecting concrete structures: Serves as an anchoring element linking concrete foundations to other structural components
Fixing foundation beams and slabs: Secures foundation beams and slabs to concrete or masonry foundations
2. Mechanical Equipment Installation
Securing equipment bases: Fixing bases for various machinery, particularly equipment without significant vibration or impact
Anchoring heavy machinery: Securing large equipment and machinery in industries such as power generation and chemical processing
Connecting equipment foundations: Linking structural and non-structural components to transmit tensile and shear forces
3. Infrastructure
Streetlight pole fixing: Securing lampposts, utility poles, etc.
Traffic installations: Fixing car park barriers, guardrails, support columns, etc.
Bridge construction: Connecting and securing bridge structures
4. Industrial applications
Pipe supports: Securing pipework systems where required
Power pylons: Embedded components ensuring pylon stability under load and external forces

2,Applications:

Features and Advantages
High tensile strength, with the L-shaped right-angle design offering superior pull-out resistance and stability compared to J-bolts.
Excellent shear resistance, as the right-angle configuration provides greater stability against horizontal shear forces.
Installation typically employs the embedded method, incorporated during concrete pouring.
Common materials include Q235, Q345B, and 16Mn steel grades, with 40Cr available for high-strength applications.
Corrosion Protection Surface treatments such as galvanising or hot-dip galvanising are applicable for outdoor environments.

the comparison between German Standard (DIN) and American Standard (ANSI/ASME/ASTM) expressed in text format:

Unit of Measurement

The German Standard uses the metric system with measurements in millimeters (mm). The American Standard uses the imperial system with measurements in inches.

Thread Standard

The German Standard employs metric threads designated as M series (such as M8, M12, M16). The American Standard uses unified threads designated as UNC for coarse threads and UNF for fine threads (such as 1/4-20 UNC).

Thread Angle

Both standards share the same 60-degree thread angle.

Pressure Rating

The German Standard uses the PN series including PN6, PN10, PN16, PN25, and PN40. The American Standard uses the Class series including Class 150, 300, 600, 900, and higher ratings.

Primary Application Regions

The German Standard is primarily applied in Europe and most parts of Asia. The American Standard is primarily applied in North America including the United States and Canada, as well as Latin America.

Standard Organization

The German Standard is established by Deutsches Institut für Normung which translates to German Institute for Standardization. The American Standard is established by the American National Standards Institute (ANSI) and the American Society of Mechanical Engineers (ASME).

Detailed Differences
1. Dimension and Thread Designation
German Standard: M16-2×60 denotes a nominal diameter of 16mm, pitch of 2mm, and length of 60mm
American Standard: 1/4-20×3/4 denotes a nominal diameter of 1/4 inch (approximately 6.35mm), 20 threads per inch, and length of 3/4 inch
Key Differences:
The American standard 10-gauge bolt has a shank diameter of 4.826mm, whereas the equivalent German/Chinese standard M5 has a diameter of exactly 5mm – a difference of 0.174mm, rendering them non-interchangeable.
The American standard 1/2-13 UNC pitch is approximately 1.954mm, while the equivalent German standard M12×1.75 pitch is 1.75mm, indicating differing thread densities.

 

Packaging Options

Available in small packing, carton packing, or pallet configurations to meet your shipping and storage requirements.

Manufacturer Information

Manufactured by JIA SHAN Hardware Company with strict quality control measures and pre-shipment inspection.