China Galvanized U-Bolts & Double Headed Bolts from China Suppliers - Custom Irregular U-Bolts from Factory Manufacturers, Factory

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China Galvanized U-Bolts & Double Headed Bolts from China Suppliers - Custom Irregular U-Bolts from Factory Manufacturers, Factory

U-shaped bolts are essential components for connecting and securing various structures with U-shaped grooves. Their unique design enhances strength and stability, making them ideal for a wide range of applications including pipe supports, coordinate measuring instruments, and specialized equipment that needs secure fittings. As a leading manufacturer in China, our factory produces high-quality U-bolts that meet industry standards. We take pride in being a reliable supplier, ensuring that our U-shaped bolts offer exceptional durability and performance for all your connection needs

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DIN 3570 U-Bolt Dimensions and Specification

📏 Dimensions Table — Small to Medium Sizes

Nominal diameter (d)		30	38	46	52	64	82	94	120	148
d1		25~26.9	30~33.7	38~42.4	44.5~48.3	57~60.3	76.1	88.9	108~114.3	133~139.7
Pipe Size	Metric system	20	25	32	40	50	65	80	100	125
Pipe Size	English (Inch)	3/4"	1"	1 1/4"	1 1/2"	2"	2 1/2"	3"	4"	-
b		40	40	50	50	50	50	50	60	60
ds / d3		10 / M10	10 / M10	10 / M10	10 / M10	12 / M12	12 / M12	12 / M12	16 / M16	16 / M16
L1		28	31	37	40	49	57	66	171	191
Weight (100pcs/kg)	Type A	9.4	10.5	12	12.9	22.2	25.9	28.8	64	72.7
Weight (100pcs/kg)	Type B	6.8	7.7	9	9.7	16.8	19.8	22.4	-	-

📏 Dimensions Table — Large Sizes

Nominal diameter (d)		176	202	228	282	332	378	428	530
d1		159~168.3	191~193.7	216~219.1	267~273	318~323.9	355.6~368	406.4~419	508~521
ds / d3		16 / M16	16 / M16	20 / M20	20 / M20	20 / M20	24 / M24	24 / M24	24 / M24
L1		217	249	283	334	385	435	487	589
n		192	218	248	302	352	402	452	554
Weight (Type A)	kg / 100pcs	83.4	95.8	169.8	202.8	235	382	429	522

🛠️ Purpose, Shape & Application Areas

💧 Primary Usage Mainly used for water pipes and other fixed pipe fittings or plates, including construction, mechanical connections, and infrastructure.

📐 Main Shapes Available in semi-circular, right-angled square, triangle, and oblique triangle shapes to suit various industrial installation needs.

🚛 Automotive Use Commonly used in trucks to stabilize chassis and frames. Leaf springs are secured by U-bolts for reliable heavy-duty performance.

🏗️ Infrastructure Widely applied in vehicles, ships, bridges, tunnels, and railway systems for secure fastening of critical components.

U-bolts have been widely adopted in modern industrial fields due to their ease of installation, maintenance, and replacement. They also offer excellent seismic performance and anti-loosening functions.

When selecting U-bolts, key factors such as material density, tensile strength, and compressive resistance must be considered to ensure they adapt to specific environmental requirements.

❓ Frequently Asked Questions

Q1: What is the primary purpose of a DIN 3570 U-bolt?

DIN 3570 U-bolts are designed to secure piping systems, including water pipes and conduit. They provide stable fixation for plates and fittings in construction, marine, and mechanical industries.

Q2: How do I choose between Type A and Type B U-bolts?

Type A U-bolts feature a heavier construction for higher load requirements across the full size range. Type B is a lighter variant typically used for smaller pipe sizes where weight reduction is prioritized.

Q3: Can these U-bolts be used in automotive applications?

Yes, they are essential in the automotive industry, particularly for trucks and heavy vehicles, where they are used to connect leaf springs and stabilize the vehicle frame and chassis.

Q4: What materials are best for U-bolt durability?

Most U-bolts are manufactured from high-strength steel. For corrosive environments, stainless steel or galvanized coatings are recommended to maintain strength and prevent rust.

Q5: What shapes are available for specific installations?

Beyond the standard semi-circular shape, U-bolts come in right-angled square, triangular, and oblique triangular designs to accommodate different structural mounting surfaces.

Q6: Do U-bolts provide resistance against vibrations?

Yes, their design offers excellent seismic performance and an anti-loosening function, making them ideal for high-vibration environments like railways, bridges, and engine compartments.

Product Detail

China Galvanized U-Bolts & Double Headed Bolts from China Suppliers - Custom Irregular U-Bolts from Factory Manufacturers, Factory

Product Description

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China Galvanized U-Bolts & Double Headed Bolts from China Suppliers - Custom Irregular U-Bolts from Factory Manufacturers, Factory

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