Description：
The W4 SS germay type hose clamp, is also know as stainless steel worm drive hose clips, refers to a specific design standard that originated in Germany and is widely used across Europe. These clamps are engineered to meet DIN3017 standards, ensuring high quality and reliability for industrial applications.
Material:
W4 - All parts stainless steel 201/301/304. (screw, hosing and band)
Stainless Steel 201: It offers higher hardness properties, making it well-suited for applications in dry environments.
Stainless Steel 304: It exhibits excellent corrosion and acid resistance, making it ideal for outdoor or high-humidity applications. With its higher chromium (18-20%) and nickel (8-10.5%) content, 304 stainless steel maintains strong rust resistance even in harsh environments.
Features:
The stainless steel worm drive hose clips band is permanently stamped with material grade and tightening range.
The continuous non-perforated stainless steel band Eliminates traditional screw holes for enhanced structural integrity. The Non-perforated tooth engagement system prevents thread stripping and uneven pressure distribution.
FAQ:
- Why is Stainless Steel Sometimes Magnetic?
304 stainless steel is an austenitic grade that is typically non-magnetic in its annealed state. However, during cold working processes (such as bending, cutting, or stamping), partial transformation from austenite to martensite occurs at the microstructure level. Since martensite is a ferromagnetic phase, this explains why 304 stainless steel may exhibit slight magnetic properties after mechanical processing.
- How to Identify Genuine 304 Stainless Steel Products?
A. Apply specialized chemical testing solution for 304 stainless steel. Authentic 304 will show no color change reaction.
B. Chemical composition analysis. SS 304 are verifying Cr 18-20% and Ni 8-10.5%.
C. Standard salt spray test (ASTM B117). 500+ hours exposure without rust formation.
Dimension chart:
| 9mm/12mm stainless steel worm drive hose clips | ||||
| Part No | Dimension range |
Part No | Dimension range |
|
| GM9W412 | 8-12 | GM9/12W445 | 30-45 | |
| GM9W416 | 10-16 | GM9/12W450 | 32-50 | |
| GM9W420 | 12-20 | GM9/12W460 | 40-60 | |
| GM9W422 | 12-22 | GM9/12W470 | 50-70 | |
| GM9/12W425 | 16-25 | GM9/12W480 | 60-80 | |
| GM9/12W427 | 16-27 | GM9/12W490 | 70-90 | |
| GM9/12W432 | 20-32 | GM9/12W4100 | 80-100 | |
| GM9/12W435 | 23-35 | ... | ... | |
| GM9/12W440 | 25-40 | GM9/12W4200 | 180-200 | |
Package：small bag/box + outer carton + pallet
