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Stainless Steel U-Bolt Exhaust Clamp

YDCT U-bolt exhaust clamps are mechanical fastening components designed to secure exhaust pipes, mufflers, and related pipe sections without welding. The standard assembly consists of a U-bolt, two nuts, and a formed saddle, with an optional gasket available according to the connection requirement. Carbon steel and SS304 stainless steel versions can be selected to suit different corrosion resistance, installation, and replacement needs.

Different bolt and saddle configurations are available for regional markets and pipe applications. M8 and 5/16-inch versions normally use a 7 mm diameter U-bolt with a 2 mm thick saddle. The 3/8-16 version, commonly used for the North American market, is supplied with a 2.75 mm thick saddle, while the M10 version uses a 2.5 mm thick saddle. Standard quotations are based on the M8 configuration unless otherwise specified. You can provide the pipe outside diameter, bolt specification, material, saddle thickness, gasket requirement, and order quantity so that we can confirm the suitable clamp configuration.
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Product Description

U-bolt exhaust clamp dimensions and complete hardware components
Type Size Ø (mm) Height H (mm) Width W (mm) Thread Length L (mm) F (mm) M K (mm) S (mm)
A 36 63 63 25 28.5 M8 15 2
38 64 64 25 29 M8 15
42 65 70 25 31 M8 15
45 73 73 30 33 M8 15
48 77 76 30 34 M8 15
50 79 78 30 36 M8 15
54 83 82 30 37 M8 15
58 87 86 30 40 M8 15
63.5 75 92 30 43 M8 15
65 94 93 30 44 M8 15
70 95 100 40 43 M8 15
73 110 102 40 43 M8 15
B 54 89 87 40 32 M10 17 3
94 128 128 45 60 M10 21
106 150 138 45 65 M10 21

Concentrated Clamping to Reduce Movement

The U-bolt, formed saddle, and two nuts wrap around the pipe and apply stable clamping force after tightening. The saddle helps distribute pressure across the connection area, reducing the chance of pipe movement under normal operating vibration. For piping assemblies intended for continued use or final delivery, this structure helps maintain a stable installation and reduces the need for repeated adjustment or rework caused by insufficient fastening.

Compact Structure

The U-bolt clamp uses relatively little axial space, making it suitable for exhaust pipes, mufflers, and connections located close to pipe bends or other compact areas. Depending on the pipe outside diameter, the clamp can provide an approximate adjustment range of 1–2 mm to help you achieve a more suitable fit during installation. Standard flat washers or spring washers can also be selected according to the fastening requirement.

Material and Finish Options

Carbon steel versions are suitable for regular repair, replacement, and general operating conditions, while SS304 stainless steel provides improved corrosion resistance for damp or more corrosive environments. For agricultural machinery, outdoor equipment, or other applications requiring greater surface protection, a thicker zinc coating can also be specified. This allows you to select a configuration that better balances cost, operating conditions, and expected service life.

  1. Accessories are divided into nuts, bolts and base three parts, of which gaskets are optional, gaskets have spiral and conventional flat;

  2. The base can be pressed to increase strength if necessary;

  3. MOQ, 200 sets of carbon steel, 304 need 1000 sets;

  4. Size adjustment range: according to the outside diameter of the pipe, there is a 1-2mm adjustment range;

  5. Agricultural machinery products, galvanized layer thickness requirements of 13μm microns, conventional only 3-5μm microns;

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About YDCT

Since 1992, Yueding has focused on exhaust flexible connection parts, metal bellows, clamp fasteners, and related pipe components, supporting regular supply, mixed specifications, and drawing-based product review for global customers.

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Address: Hengqiankou Industrial Zone, Wenzhou, Zhejiang 325600, China
WhatsApp: +86-13757770601
Email: mike@yuedingexhaust.com

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