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T-Bolt V Band Clamp With Flange
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v BAND CLAMP SIZES
We offer diameter coverage from 1 1/4 inch up to 6 13/16 inch (32 mm to 173 mm). Both inch and metric size references are available, covering standard turbo exhaust, diesel engine exhaust outlet, industrial generator exhaust branch, and heavy-duty pipeline connection.
For band construction, we provide W2 and W4 material grades. Main structural parts such as band, bridge, trunnion, and cap can be supplied in AISI 301, 304 stainless steel combinations. Bolt and nut material options include zinc plated steel, 18-8 stainless steel, 316 stainless steel, A286 stainless steel, 410/420/431 heat treated stainless steel, and 4037 alloy heat treated high strength steel up to 160,000 psi.
| SAE No. | Inch Size | mm Range |
| — | 1 1/4–1 7/16 | 32–37 |
| — | 1 3/8–1 9/16 | 35–40 |
| — | 1 1/2–1 11/16 | 38–43 |
| — | 1 5/8–1 7/8 | 41–46 |
| 28 | 1 3/4–2 | 44–52 |
| 30 | 1 13/16–2 1/16 | 46–54 |
| 34 | 1 15/16–2 1/4 | 50–58 |
| 40 | 2 1/8–2 7/16 | 54–62 |
| 46 | 2 5/16–2 5/8 | 59–67 |
| 52 | 2 1/2–2 13/16 | 64–72 |
| 58 | 2 11/16–3 | 69–77 |
| 64 | 2 7/8–3 3/16 | 73–81 |
| 70 | 3 1/16–3 3/8 | 78–86 |
| 76 | 3 1/4–3 9/16 | 83–91 |
| 82 | 3 7/16–3 3/4 | 88–96 |
| 88 | 3 5/8–3 15/16 | 92–100 |
| 94 | 3 13/16–4 1/8 | 97–105 |
| 100 | 4–4 5/16 | 102–110 |
| 108 | 4 1/4–4 9/16 | 108–116 |
| 116 | 4 1/2–4 13/16 | 114–122 |
| 124 | 4 3/4–5 1/16 | 121–129 |
| 132 | 5–5 5/16 | 127–135 |
| 140 | 5 1/4–5 9/16 | 134–142 |
| 148 | 5 1/2–5 13/16 | 140–148 |
| 156 | 5 3/4–6 1/16 | 146–154 |
| 164 | 6–6 5/16 | 153–161 |
| 172 | 6 1/4–6 9/16 | 159–167 |
| 180 | 6 1/2–6 13/16 | 165–173 |
| Band Width | Material Grade | Band | Bridge | Trunnion | Cap | Spring | Bolt | Nut | Suggested Install Torque |
| 19 mm | W2 | AISI SS301 / SS304 | AISI SS301 / SS304 | AISI SS301 / SS304 | AISI SS304 | Zinc Plated Steel | Zinc Plated Steel | Zinc Plated Steel | 9 Nm |
| 19 mm | W4 | AISI SS301 / SS304 | AISI SS301 / SS304 | AISI SS301 / SS304 | AISI SS304 | — | AISI SS304 | AISI SS304 | 9 Nm |
custom sealing precision v-sections
The reliability core of V-Band connection lies in the physical engagement between the V-section profile and the flange. We provide six precision cross-section contours from YTV-01 to YTV-06, ensuring uniform axial clamping torque under 360-degree radial pressure.
Matched with our factory machined mating flanges, this structure can automatically compensate small displacement caused by thermal cycling, and prevent leakage under high turbo boost or severe exhaust pulse condition.
| Code | Thread Size | Bolt Description | Pictures |
| YDB1 | 10-32 / 1/4-28 / M6×1 / 5/16-24 / 3/8-16 / 1/2-13 | 4037 Alloy Heat Treated 125,000–145,000 psi, Zinc Plated |  |
| YDB2 | 10-32 / 1/4-20 / 1/4-28 / 5/16-18 / 5/16-24 / 3/8-16 / 10-32 | 18-8 Stainless Steel (302 or 305) | |
| YDB3 | 1/4-28 / 5/16-24 | 431 / 420 / 410 Stainless Steel, Heat Treated 140,000–160,000 psi | |
| YDB4 | 10-32 / 1/4-28 | A286 Stainless Steel, 130,000 psi minimum | |
| YDB5 | 1/4-28 / M6×1 / M8×1.25 | 316 Stainless Steel |
| Code | BoYD Description | Picture |
| YDK1 | Knob for hand tightening, plastic with brass insert, 1 in. long (25.4 mm) |  |
| YDK2 | Knob for hand tightening, plastic with brass insert, 1.75 in. long (44.5 mm) | |
| YDK3 | T-Handle for hand tightening, steel, cadmium or zinc plated, 3 in. long (76.2 mm) |
| Code | Nut Description | Temp Rating | Self-Locking | Picture |
| YDS1 | Steel, self-locking, nylon insert, cadmium or zinc plated | 250°F (120°C) | Yes |  |
| YDS2 | All metal, self-locking, collar or short beam design, cadmium or zinc plated | 550°F (290°C) | Yes | |
| YDS3 | All metal, 18-8 stainless steel, self-locking, collar or short beam design, silver plated | 800°F (425°C) | Yes | |
| YDS4 | All metal, 347 stainless steel, self-locking, collar or short beam design, silver plated | 1200°F (650°C) | Yes | |
| YDS5 | 18-8 Stainless Steel, self-locking, nylon insert, silver plated | 250°F (120°C) | Yes | |
| YDS6 | Stainless Steel Hex Nut, silver plated | 800°F (425°C) | No | |
| YDS7 | Steel Hex Nut, zinc plated | — | No |
Our T-type V-groove clamp system can be supplied in standard industrial version, high strength turbo exhaust version, high temperature diesel application version, stainless anti-corrosion version, manual quick-release version, and custom material combination version. All structural parts, bolt grade, locking system, and temperature class can be flexibly matched according to exhaust system working condition.More size and material can be supplied according to customers requirements. Above data just for reference.
v BAND CLAMP SIZES
We offer diameter coverage from 1 1/4 inch up to 6 13/16 inch (32 mm to 173 mm). Both inch and metric size references are available, covering standard turbo exhaust, diesel engine exhaust outlet, industrial generator exhaust branch, and heavy-duty pipeline connection.
For band construction, we provide W2 and W4 material grades. Main structural parts such as band, bridge, trunnion, and cap can be supplied in AISI 301, 304 stainless steel combinations. Bolt and nut material options include zinc plated steel, 18-8 stainless steel, 316 stainless steel, A286 stainless steel, 410/420/431 heat treated stainless steel, and 4037 alloy heat treated high strength steel up to 160,000 psi.
| SAE No. | Inch Size | mm Range |
| — | 1 1/4–1 7/16 | 32–37 |
| — | 1 3/8–1 9/16 | 35–40 |
| — | 1 1/2–1 11/16 | 38–43 |
| — | 1 5/8–1 7/8 | 41–46 |
| 28 | 1 3/4–2 | 44–52 |
| 30 | 1 13/16–2 1/16 | 46–54 |
| 34 | 1 15/16–2 1/4 | 50–58 |
| 40 | 2 1/8–2 7/16 | 54–62 |
| 46 | 2 5/16–2 5/8 | 59–67 |
| 52 | 2 1/2–2 13/16 | 64–72 |
| 58 | 2 11/16–3 | 69–77 |
| 64 | 2 7/8–3 3/16 | 73–81 |
| 70 | 3 1/16–3 3/8 | 78–86 |
| 76 | 3 1/4–3 9/16 | 83–91 |
| 82 | 3 7/16–3 3/4 | 88–96 |
| 88 | 3 5/8–3 15/16 | 92–100 |
| 94 | 3 13/16–4 1/8 | 97–105 |
| 100 | 4–4 5/16 | 102–110 |
| 108 | 4 1/4–4 9/16 | 108–116 |
| 116 | 4 1/2–4 13/16 | 114–122 |
| 124 | 4 3/4–5 1/16 | 121–129 |
| 132 | 5–5 5/16 | 127–135 |
| 140 | 5 1/4–5 9/16 | 134–142 |
| 148 | 5 1/2–5 13/16 | 140–148 |
| 156 | 5 3/4–6 1/16 | 146–154 |
| 164 | 6–6 5/16 | 153–161 |
| 172 | 6 1/4–6 9/16 | 159–167 |
| 180 | 6 1/2–6 13/16 | 165–173 |
| Band Width | Material Grade | Band | Bridge | Trunnion | Cap | Spring | Bolt | Nut | Suggested Install Torque |
| 19 mm | W2 | AISI SS301 / SS304 | AISI SS301 / SS304 | AISI SS301 / SS304 | AISI SS304 | Zinc Plated Steel | Zinc Plated Steel | Zinc Plated Steel | 9 Nm |
| 19 mm | W4 | AISI SS301 / SS304 | AISI SS301 / SS304 | AISI SS301 / SS304 | AISI SS304 | — | AISI SS304 | AISI SS304 | 9 Nm |
custom sealing precision v-sections
The reliability core of V-Band connection lies in the physical engagement between the V-section profile and the flange. We provide six precision cross-section contours from YTV-01 to YTV-06, ensuring uniform axial clamping torque under 360-degree radial pressure.
Matched with our factory machined mating flanges, this structure can automatically compensate small displacement caused by thermal cycling, and prevent leakage under high turbo boost or severe exhaust pulse condition.
| Code | Thread Size | Bolt Description | Pictures |
| YDB1 | 10-32 / 1/4-28 / M6×1 / 5/16-24 / 3/8-16 / 1/2-13 | 4037 Alloy Heat Treated 125,000–145,000 psi, Zinc Plated | |
| YDB2 | 10-32 / 1/4-20 / 1/4-28 / 5/16-18 / 5/16-24 / 3/8-16 / 10-32 | 18-8 Stainless Steel (302 or 305) | |
| YDB3 | 1/4-28 / 5/16-24 | 431 / 420 / 410 Stainless Steel, Heat Treated 140,000–160,000 psi | |
| YDB4 | 10-32 / 1/4-28 | A286 Stainless Steel, 130,000 psi minimum | |
| YDB5 | 1/4-28 / M6×1 / M8×1.25 | 316 Stainless Steel |
| Code | BoYD Description | Picture |
| YDK1 | Knob for hand tightening, plastic with brass insert, 1 in. long (25.4 mm) | |
| YDK2 | Knob for hand tightening, plastic with brass insert, 1.75 in. long (44.5 mm) | |
| YDK3 | T-Handle for hand tightening, steel, cadmium or zinc plated, 3 in. long (76.2 mm) |
| Code | Nut Description | Temp Rating | Self-Locking | Picture |
| YDS1 | Steel, self-locking, nylon insert, cadmium or zinc plated | 250°F (120°C) | Yes | |
| YDS2 | All metal, self-locking, collar or short beam design, cadmium or zinc plated | 550°F (290°C) | Yes | |
| YDS3 | All metal, 18-8 stainless steel, self-locking, collar or short beam design, silver plated | 800°F (425°C) | Yes | |
| YDS4 | All metal, 347 stainless steel, self-locking, collar or short beam design, silver plated | 1200°F (650°C) | Yes | |
| YDS5 | 18-8 Stainless Steel, self-locking, nylon insert, silver plated | 250°F (120°C) | Yes | |
| YDS6 | Stainless Steel Hex Nut, silver plated | 800°F (425°C) | No | |
| YDS7 | Steel Hex Nut, zinc plated | — | No |
Our T-type V-groove clamp system can be supplied in standard industrial version, high strength turbo exhaust version, high temperature diesel application version, stainless anti-corrosion version, manual quick-release version, and custom material combination version. All structural parts, bolt grade, locking system, and temperature class can be flexibly matched according to exhaust system working condition.More size and material can be supplied according to customers requirements. Above data just for reference.
YUEDING EXHAUST
YDCT specializes in exhaust connection and fastening components, offering stainless steel flex joints, expansion joints, and clamps for automotive and industrial applications. Most products are made in-house with strict quality control and customization options including material, OEM marking, color, and drawing-based production.
Reliable Delivery
Scheduled production and worldwide shipping ensure timely bulk deliveries.
Factory Direct
In-house manufacturing with partner quality control guarantees consistent performance.
Bulk OEM
OEM and drawing-based production support stable supply and project compliance.
