German Style Hose Clamp (with Weldless Worm Housing)
The German style hose clamp falls under the category of worm gear hose clamps. Featuring a one-piece design that contains no welded parts, this style of screw clamp or band clamp delivers higher mechanical strength and a more secure connection between the hose and the fitting it is attached to. The weld-less screw housing (or worm housing) means no weld corrosion occurs.
Material, Mounting Torque
We offer different materials for choices, including W1, W2, W3, W4, and W5. Different designations offer different steel grades.
W1: Steel band, worm housing, and screw are all made of galvanized steel.
W2: Steel band and worm housing constructed of AISI 430ss stainless steel. Screw is galvanized steel.
W3: Steel band and worm housing are constructed of AISI 430ss stainless steel. Screw uses AISI 410ss stainless steel.
W4: Steel band, worm housing, and screw are built with AISI 301ss/304ss stainless steel.
W5: Steel band, worm housing and screw are built with AISI 316ss stainless steel.
| Material | Steel Band | Screw Housing | Screw | Recommended Mounting Torque |
| W1 | zinc plated steel | zinc plated steel | zinc plated steel | φx ≤ φ12 3.0Nm φ16 ≤ φx ≤ φ32 3.4Nm φx >φ32 4.5Nm |
| W2 | AISI 430ss | AISI 430ss | zinc plated steel | |
| W3 | AISI 430ss | AISI 430ss | AISI 410ss | φx ≤ φ12 3.0Nm φx ≥ φ16 3.4Nm |
| W4 | AISI 301ss/304ss | AISI 301ss/304ss | AISI 301ss/304ss | |
| W5 | AISI 316ss | AISI 316ss | AISI 316ss |
| Size | Item No | Pack | Pack | ||||
| mm | W1 | W2 | W3 | W4 | W5 | pcs /bag | pcs /carton |
| 8-12 | DS03A9812 | DS03B9812 | DS03C9812 | DS03D9812 | DS03E9812 | 100 | 1000 |
| 10-16 | DS03A91016 | DS03B91016 | DS03C91016 | DS03D91016 | DS03E91016 | 100 | 1000 |
| 12-22 | DS03A91222 | DS03B91222 | DS03C91222 | DS03D91222 | DS03E91222 | 100 | 1000 |
| 16-27 | DS03A91627 | DS03B91627 | DS03C91627 | DS03D91627 | DS03E91627 | 100 | 1000 |
| 20-32 | DS03A92032 | DS03B92032 | DS03C92032 | DS03D92032 | DS03E92032 | 50 | 1000 |
| 25-40 | DS03A92540 | DS03B92540 | DS03C92540 | DS03D92540 | DS03E92540 | 50 | 500 |
| 30-45 | DS03A93045 | DS03B93045 | DS03C93045 | DS03D93045 | DS03E93045 | 50 | 500 |
| 35-50 | DS03A93550 | DS03B93550 | DS03C93550 | DS03D93550 | DS03E93550 | 50 | 500 |
| 40-60 | DS03A94060 | DS03B94060 | DS03C94060 | DS03D94060 | DS03E94060 | 50 | 500 |
| 50-70 | DS03A95070 | DS03B95070 | DS03C95070 | DS03D95070 | DS03E95070 | 50 | 500 |
| 60-80 | DS03A96080 | DS03B96080 | DS03C96080 | DS03D96080 | DS03E96080 | 10 | 500 |
| 70-90 | DS03A97090 | DS03B97090 | DS03C97090 | DS03D97090 | DS03E97090 | 10 | 500 |
| 80-100 | DS03A980100 | DS03B980100 | DS03C980100 | DS03D980100 | DS03E980100 | 10 | 250 |
| 90-110 | DS03A990110 | DS03B990110 | DS03C990110 | DS03D990110 | DS03E990110 | 10 | 250 |
| 100-120 | DS03A9100120 | DS03B9100120 | DS03C9100120 | DS03D9100120 | DS03E9100120 | 10 | 250 |
| 110-130 | DS03A9110130 | DS03B9110130 | DS03C9110130 | DS03D9110130 | DS03E9110130 | 10 | 250 |
| 120-140 | DS03A9120140 | DS03B9120140 | DS03C9120140 | DS03D9120140 | DS03E9120140 | 10 | 250 |
| 130-150 | DS03A9130150 | DS03B9130150 | DS03C9130150 | DS03D9130150 | DS03E9130150 | 10 | 250 |
| 140-160 | DS03A9140160 | DS03B9140160 | DS03C9140160 | DS03D9140160 | DS03E9140160 | 10 | 200 |
German style 12mm W1 W2 W4Material, Mounting Torque
We offer different materials for choices, including W1, W2, W3, W4, and W5. Different designations offer different steel grades.
W1: Steel band, worm housing, and screw are all made of galvanized steel.
W2: Steel band and worm housing constructed of AISI 430ss stainless steel. Screw is galvanized steel.
W3: Steel band and worm housing are constructed of AISI 430ss stainless steel. Screw uses AISI 410ss stainless steel.
W4: Steel band, worm housing, and screw are built with AISI 301ss/304ss stainless steel.
W5: Steel band, worm housing and screw are built with AISI 316sss stainless steel.
| Material | Steel Band | Screw Housing | Screw | Recommended Mounting Torque |
| W1 | zinc plated steel | zinc plated steel | zinc plated steel | 7.5Nm |
| W2 | AISI 430ss | AISI 430ss | zinc plated steel | |
| W3 | AISI 430ss | AISI 430ss | AISI 410ss | φx ≤ φ32 6.0Nm φx ＞ φ32 6.4Nm |
| W4 | AISI 301ss/304ss | AISI 301ss/304ss | AISI 301ss/304ss | |
| W5 | AISI 316ss | AISI 316ss | AISI 316ss |
| Size | Item No | Pack | Pack | ||||
| mm | W1 | W2 | W3 | W4 | W5 | pcs /bag | pcs /carton |
| 16-27 | DS03A121627 | DS03B121627 | DS03C121627 | DS03D121627 | DS03E121627 | 50 | 1000 |
| 20-32 | DS03A122032 | DS03B122032 | DS03C122032 | DS03D122032 | DS03E122032 | 50 | 1000 |
| 25-40 | DS03A122540 | DS03B122540 | DS03C122540 | DS03D122540 | DS03E122540 | 50 | 500 |
| 30-45 | DS03A123045 | DS03B123045 | DS03C123045 | DS03D123045 | DS03E123045 | 50 | 500 |
| 35-50 | DS03A123550 | DS03B123550 | DS03C123550 | DS03D123550 | DS03E123550 | 25 | 500 |
| 40-60 | DS03A124060 | DS03B124060 | DS03C124060 | DS03D124060 | DS03E124060 | 10 | 500 |
| 50-70 | DS03A125070 | DS03B125070 | DS03C125070 | DS03D125070 | DS03E125070 | 10 | 500 |
| 60-80 | DS03A126080 | DS03B126080 | DS03C126080 | DS03D126080 | DS03E126080 | 10 | 250 |
| 70-90 | DS03A127090 | DS03B127090 | DS03C127090 | DS03D127090 | DS03E127090 | 10 | 250 |
| 80-100 | DS03A1280100 | DS03B1280100 | DS03C1280100 | DS03D1280100 | DS03E1280100 | 10 | 250 |
| 90-110 | DS03A1290110 | DS03B1290110 | DS03C1290110 | DS03D1290110 | DS03E1290110 | 10 | 250 |
| 100-120 | DS03A12100120 | DS03B12100120 | DS03C12100120 | DS03D12100120 | DS03E12100120 | 10 | 250 |
| 110-130 | DS03A12110130 | DS03B12110130 | DS03C12110130 | DS03D12110130 | DS03E12110130 | 10 | 200 |
| 120-140 | DS03A12120140 | DS03B12120140 | DS03C12120140 | DS03D12120140 | DS03E12120140 | 10 | 200 |
| 130-150 | DS03A12130150 | DS03B12130150 | DS03C12130150 | DS03D12130150 | DS03E12130150 | 10 | 200 |
| 140-160 | DS03A12140160 | DS03B12140160 | DS03C12140160 | DS03D12140160 | DS03E12140160 | 10 | 200 |
| 150-170 | DS03A12150170 | DS03B12150170 | DS03C12150170 | DS03D12150170 | DS03E12150170 | 10 | 200 |
| 160-180 | DS03A12160180 | DS03B12160180 | DS03C12160180 | DS03D12160180 | DS03E12160180 | 10 | 200 |
| 170-190 | DS03A12170190 | DS03B12170190 | DS03C12170190 | DS03D12170190 | DS03E12170190 | 10 | 200 |
| 180-200 | DS03A12180200 | DS03B12180200 | DS03C12180200 | DS03D12180200 | DS03E12180200 | 10 | 200 |
| 190-210 | DS03A12190210 | DS03B12190210 | DS03C12190210 | DS03D12190210 | DS03E12190210 | 10 | 200 |
Other specs and materials are available upon request. The above information are used for reference only.
Why Choose Kainuo
1. Kainuo offers different series of hose clamps and fasteners. Over our 30 year history, we've gained a wealth of experience in this business.
2. We produce 130 million screw hose clamps every year, so we can take care of your order large or small.
3. We are proud of our expansive manufacturing complex, with ample production space.
4. Certificates we've obtained include ISO9001：2000 quality management system certificate, ISO/TS16949:2002 automobile industry quality management system certificate, UPC certificate, and NF certificate.
5. Kainuo, your peace of mind.
