Free shipping on all orders over $50
7-15 days international
11 people viewing this product right now!
30-day free returns
Secure checkout
93709686
Features Convenient and Versatile:The 3/8-inch bandwidth is ideal for tight installation spaces, while the 7mm slotted hex head ensures effortless installation with a standard screwdriver.The worm drive clamp is essential for securely connecting various rubber hose interfaces, preventing leakage of gas, water, air, oil, liquids, etc.Precise Engineering:The crafted screw facilitates easy turning, ensuring a smooth construction process.The structure of the hose clamp efficiently resolves issues encountered when connecting small-diameter soft tubes to hard tubes.Smooth & Burr-Free Band:Detailed rolled edges provide protection, preventing scratches on the hose surface during installation.The robust tenon design prevents housing loosening, and torque is enhanced after spot welding. To extend durability, it is recommended to install the clamp with a torque of 4 Nm. CHUN YUNG DA Hose Clamps Various Uses The DIN 3017 German Type Worm Drive Hose Clamp is commonly utilized in automotive, industrial, mining, marine, plumbing pipe, and general hardware applications.It is ideal for high-pressure applications such as fuel lines, emission controls, vacuum hoses, engine machinery, and ship hose fittings. Applications for Worm Drive Hose Clamps: Automotive, Lawn & Garden, Irrigation, Marine, Heavy Truck, Agriculture, Heavy Equipment, Power Generation, and Fluid Storage. Note: Hose clamps offer excellent anti-loosening properties, but these may weaken with repeated disassembly. To maintain performance, minimize frequent removal.For safety and durability, please use a wrench or screwdriver to install the hose clamp. Avoid using pneumatic tools.The product is made entirely of 304 stainless steel, which retains slight magnetic properties. To ensure you choose the correct size, it’s important to measure the hose's outer diameter accurately. When the hose is connected to a fitting, it may expand slightly. Therefore, we recommend measuring the outer diameter of the hose while it is connected and swollen to select the appropriate hose clamp size.If a sleeve is added to the hose, include the sleeve's thickness when determining the correct clamp size. The formula is: Hose clamp size = hose outer diameter + (sleeve thickness * 2).For example, if the hose's outer diameter is 32 mm and the sleeve thickness is 2 mm, the calculation would be:32 mm + (2 mm * 2) = 36 mm. In this case, a hose clamp with a size of 25-40 mm would be appropriate. Worm Gear Hose Clamp TT Heavy Duty Hose Clamp TT Extra Wide Heavy Duty Hose Clamp Universal Exhaust Band Clamp TT Heavy Duty Small Hose Clamp Assortment Kit Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Customer Reviews 4.3 out of 5 stars 40 4.6 out of 5 stars 345 4.0 out of 5 stars 24 4.8 out of 5 stars 6 4.5 out of 5 stars 2 Price $12.99$12.99 $11.99$11.99 $23.99$23.99 $13.99$13.99 $29.99$29.99 Material Stainless Steel Stainless Steel Stainless Steel Stainless Steel Stainless Steel Durable ✓ ✓ ✓ ✓ ✓ Precise Measurements ✓ ✓ ✓ ✓ ✓ Easy to Install ✓ ✓ ✓ ✓ ✓
【Strong Design】The buckle housing features a unique tenon design and utilizes spot welding to enhance breaking torque. With a width of 3/8" tailored for automotive engines, it is suitable for radiator, heater, fuel line repair, providing the best work efficiency.
【Plain & Thickness Band】The non-perforated band prevents soft silicone hoses from shearing or extruding during installation and final torquing, maintaining the integrity of the connection and providing a stable seal
【Rust-Free Assurance】We guarantee every component—band, screw, and housing—is crafted from premium 304 stainless steel, known for its superior corrosion resistance performance designed for high-temperature and high-vibration automotive industry applications.
【Responsibilities & Mission】Our metal clamps are manufactured according to engineering specifications in DIN 3017. All parts have undergone RoHS and REACH inspections, ensuring compliance with environmental sustainability standards
【Versatile Performance】Perfect for garden, automotive, marine, and various mechanical tools. Better yet, worm gear clamps fit into restricted spaces and hold tightly over time.
So you probably got here looking for a European or German style narrow “NORMA” style clamp. Likely after realizing the genuine ones are now over $3-4 each and after weeding out the non stainless imitations, and needing a narrow 9mm instead of 12mm in this somewhat larger size. Which from what I can tell, brings you here. So these are similar to “NORMA” made 10 or 15+ years ago. They have a proper asymmetric profile to the serrations. They do not have the serrations off center as a current generation brand name clamp. Does that matter? Who knows? They are smooth in operation, take a 7 mm hex, and are nice and tight with no slop or slack in the screw to band.. They have reasonably rolled edges.I actually have never liked this style clamp in 35 years of working on German automobiles as I tended to always find them stripping perhaps because I’ve always over tightened them vs a US style clamp. I needed a narrow 40 mm clamp for a generator project and wasn’t about to pay four dollars each and have to buy 10 when I needed 2. These have ended up perfect for the application, but I am only clamping intake, vacuum, not against pressure. The big question for me is are they truly fully stainless? The band is labeled 304. The screw and band are non-magnetic. The bail the screw passes through however, is magnetic and the welding on it isn’t exactly beautiful. Indeed it may very well be 304 that has become magnetic from the welding.Anyway, I’ll post an update if necessary after about six months in service as the cabinet for this is very humid and prior clamps have rusted quickly.I do wish the seller would sell a full assortment of these from say 8 to about 50mm as I would’ve paid even 60 or $70 for an assortment to have on hand instead of $13 for just the one size. You can find imitation assortments (zinc plated screws) but not in fully stainless that I see.