German 304 Stainless Steel Hose Clamps

Quick Answer

German-style hose clamps use a worm drive screw and stainless steel band to close evenly around a hose, giving a strong, adjustable seal. Ours are 304 grade stainless, stocked from 6mm x 12mm up to 110mm x 130mm.

What Makes a German-Style Clamp Different

The German or worm-drive style clamp tightens with a screw turning against a perforated band, distributing pressure evenly around the full circumference of the hose rather than at a single point. That even pressure is what stops a hose slipping or leaking under vibration, which matters most in fuel, coolant and hydraulic lines where a poor seal isn't just an inconvenience.

304 Grade Stainless Steel

304 stainless resists corrosion well across most conditions, including exposure to fuel, oil, coolant and general moisture, which is why it's the standard grade for automotive and general industrial hose clamping rather than a specialty upgrade.

Sizes We Stock

6mm x 12mm, 10mm x 16mm, 12mm x 20mm, 13mm x 27mm, 20mm x 35mm, 19mm x 44mm, 34mm x 57mm, 40mm x 60mm, 50mm x 70mm, 60mm x 80mm, 70mm x 90mm, 80mm x 100mm, 100mm x 120mm and 110mm x 130mm, sold in packs of 10 or 30. Size refers to the clamping range, so measure the hose diameter at the point you're clamping and choose a clamp that sits within that range with room to tighten, not right at either end of it.

Automotive and EFI Use

These clamps are a regular fixture in automotive and mechanical workshop work, including fuel injection (EFI) systems where a secure, leak-proof connection matters under pressure and vibration. They're also used across mining, hydraulics and truck repair work wherever a hose needs a reliable, adjustable seal rather than a fixed fitting.

Installation Notes

Tighten evenly and avoid overtightening past the point the band and screw are rated for, since that can deform the hose or strip the screw thread rather than improve the seal. If a hose sees regular vibration, it's worth checking clamp tension periodically rather than assuming a single install will hold indefinitely.

Common Questions

What are German 304 stainless steel hose clamps used for?

Securing hoses in automotive, plumbing and industrial applications, particularly where corrosion resistance and a strong, even seal matter.

What sizes do you stock?

6mm x 12mm through to 110mm x 130mm, sold in packs of 10 or 30.

Are these suitable for EFI and fuel system use?

Yes, they're commonly used in fuel injection systems where a secure, leak-proof connection is needed.

How do I choose the right clamp size?

Measure the hose diameter at the clamping point and choose a clamp whose range covers that measurement with some room to tighten, rather than one sitting at either extreme of its range.

Do you stock other hose clamp styles?

Yes, alongside German-style 304 clamps we also stock other stainless hose clamp styles for different fitting requirements.