Our T-Bolt Spring Loaded Clamps consist of a stainless steel band, bolts, nuts, and a high-strength spring, with SS201 or SS304 steel as standard. The heavy duty version uses a zinc-plated spring with two washers for additional load capacity and stability. The band is typically 19mm wide and 0.6mm thick, polished to prevent hose surface damage. Bolts can be straight or bent, and nuts are available in metal lockplate or nylon options, with color choices including standard blue or white for nylon nuts.
These clamps provide improved torque and torsion resistance through the spiral spring design, and the T-bolt tongue can be flanged to protect hoses during installation. Standard torque is 12–15Nm, and large diameter clamps above 70mm use M8 nuts, while conventional sizes use M6. Our production line ensures consistent batch quality, with inspections on dimensions, spring load, and surface finishing to meet industrial and automotive requirements. Custom sizes, special materials, and OEM options are available for high-volume orders.
T-Bolt Hose Clamp | T-Bolt Spring Loaded Clamp Standard Duty With Small Spring | T-Bolt Spring Loaded Clamp Heavy Duty With Large Spring |
SAE No. | Size | SAE No. | Size | Size |
Inch | mm | Inch | mm | Inch | mm |
/ | 1 1/4-1 7/16 | 32-37 | / | / | / | 2 1/8-2 7/16 | 54-62 |
/ | 13/8-19/16 | 35-40 | / | / | / | 2 1/4-2 9/16 | 57-65 |
/ | 1 1/2-1 11/16 | 38-43 | / | / | / | 2 1/8-2 11/16 | 60-68 |
/ | 1 5/8-1 7/8 | 41-46 | / | / | / | 2 1/2-2 13/16 | 64-72 |
28 | 1 3/4 -2 | 44-52 | / | / | / | 2 5/8-2 15/16 | 67-75 |
30 | 1 13/16-2 1/16 | 46-54 | / | / | / | 2 3/4-3 1/16 | 70-78 |
34 | 1 15/16-2 1/4 | 50-58 | 34 | 1 15/16-2 1/4 | 50-58 | 2 7/8-3 3/16 | 73-81 |
40 | 2 1/8-2 7/16 | 54-62 | 40 | 2 1/8-2 7/16 | 54-62 | 3-3 5/16 | 76-84 |
46 | 2 5/16-2 5/8 | 59-67 | 46 | 2 5/16-2 5/8 | 59-67 | 3 1/16-3 3/8 | 78-86 |
52 | 2 1/2-2 13/16 | 64-72 | 52 | 2 1/2-2 13/16 | 64-72 | 3 1/8-3 7/16 | 80-87 |
58 | 2 11/16-3 | 69-77 | 58 | 2 11/16-3 | 69-77 | 3 1/4-3 9/16 | 83-91 |
64 | 2 7/8-3 3/16 | 73-81 | 64 | 2 7/8-3 3/16 | 73-81 | 3 3/8-3 11/16 | 86-94 |
70 | 3 1/16-3 3/8 | 78-86 | 70 | 3 1/16-3 3/8 | 78-86 | 3 1/2-3 13/16 | 89-97 |
76 | 3 1/4-3 9/16 | 83-91 | 76 | 3 1/4-3 9/16 | 83-91 | 3 9/16-3 7/8 | 91-98 |
82 | 3 7/16-3 3/4 | 88-96 | 82 | 3 7/16-3 3/4 | 88-96 | 3 5/8-3 15/16 | 92-100 |
88 | 3 5/8-3 15/16 | 92-100 | 88 | 3 5/8-3 15/16 | 92-100 | 3 3/4-4 1/16 | 95-103 |
94 | 3 13/16-4 1/8 | 97-105 | 94 | 3 13/16-4 1/8 | 97-105 | 4 1/16-4 3/8 | 103-111 |
100 | 4-4 5/16 | 102-110 | 100 | 4-4 5/16 | 102-110 | 4 1/8-4 7/16 | 105-122 |
108 | 4 1/4-4 9/16 | 108-116 | 108 | 4 1/4-4 9/16 | 108-116 | 4 1/2-4 9/16 | 108-116 |
116 | 4 1/2-413/16 | 114-122 | 116 | 4 1/2-4 13/16 | 114-122 | 4 1/2-4 13/16 | 114-122 |
124 | 4 3/4-5 1/16 | 121-129 | 124 | 4 3/4-5 1/16 | 121-129 | 4 9/16-4 7/8 | 116-124 |
132 | 5-5 5/16 | 127-135 | 132 | 5-5 5/16 | 127-135 | 5-5 5/16 | 127-135 |
140 | 5 1/4-5 9/16 | 134-142 | 140 | 5 1/4-5 9/16 | 134-142 | 5 1/4-5 9/16 | 133-141 |
148 | 5 1/2-5 13/16 | 140-148 | 148 | 5 1/2-5 13/16 | 140-148 | 5 1/2-5 13/16 | 140-148 |
156 | 5 3/4-6 1/16 | 146-154 | 156 | 5 3/4-6 1/16 | 146-154 | 5 3/4-61/16 | 146-154 |
164 | 6-6 5/16 | 153-161 | 164 | 6-6 5/16 | 153-161 | 6-6 5/16 | 152-160 |
172 | 6 1/4-6 9/16 | 159-167 | 172 | 6 1/4-6 9/16 | 159-167 | 6 1/4-6 9/16 | 159-167 |
180 | 6 1/2-6 13/16 | 165-173 | 180 | 6 1/2-6 13/16 | 165-173 | 6 1/2-6 13/16 | 165-173 |
Material | Band | Bridge | Trunnion | Cap | Spring | Bolt/Nut |
W2 | AISISS301/ SS304 | AISISS301/ SS304 | AISISS301/ SS304 | AISISS304 | Zinc Plated Steel | Zinc Plated Steel |
W4 | AISISS301/ SS304 | AISISS301/ SS304 | AISISS301/ SS304 | AISISS304 | / | AISISS304 |
More size and material can be supplied according to customers requirements. Above data just for reference.
FAQ
1. What materials are used for the heavy duty T-Bolt Spring Loaded Clamp?
We use stainless steel SS201 and SS304 for the bands, zinc-plated springs for heavy duty versions, and high-quality metal or nylon nuts. Custom materials are available for large-volume orders.
2. What hoses are compatible with these clamps?
Suitable for hydraulic hoses, coolant hoses, air hoses, chemical hoses, and suction hoses in trucks, machinery, marine, and industrial equipment.
4. Are custom sizes or OEM markings available?
Yes, we can produce according to your specifications, including diameter, width, spring type, nut style, and custom markings.
5. What torque should be applied during installation?
Standard torque is 12–15Nm. Large diameter clamps may require higher torque depending on hose and system requirements.
