High-Torque German Style Hose Clamps (DIN 3017 Standard)

Description：

RockClamp’s German Style Hose Clamps are engineered for high-sealing efficiency and maximum durability. Characterized by their non-perforated (smooth) band and flared edges, these clamps provide superior protection for soft hoses while ensuring a high tension distribution. Manufactured according to DIN 3017 standards, they are the preferred choice for automotive, industrial, and agricultural applications.

The German style hose clamp is also know as worm screw hose clamp. It is a high-performance clamping solution designed for secure and durable hose connections in demanding applications. Featuring a solid, non-perforated stainless steel band, it ensures even pressure distribution and superior corrosion resistance, making it ideal for automotive, industrial, and marine environments. 

German style hose clamp Material:

W1 - All parts carbon steel with zinc plated. (screw, hosing and band)

The zinc coating forms a dense protective layer on the steel band surface, effectively resisting moisture, acids, and other corrosive environments, significantly extending service life - making it ideal for harsh conditions. Compared to stainless steel, galvanized hose clamps maintain excellent rust resistance while offering lower costs, representing an economical and practical choice for standard industrial applications. 

Both yellow zinc and white are available.

Features:

The worm screw hose clamp features the non-perforated band, which utilizes a continuous solid metal strap without screw perforations, delivering exceptional sealing integrity and uniform radial pressure distribution to ensure leak-proof performance in high-pressure or high-vibration applications. This robust design proves particularly advantageous for mission-critical systems handling fuels, hydraulic fluids, or corrosive media where maximum operational reliability is paramount.

Drawing: 

Dimension chart: 

Versatile Clamping Solutions for Every Industry:

• Automotive: Cooling systems, fuel lines, and turbocharger hoses.

• General Industry: Machinery manufacturing and fluid delivery systems.

• Agriculture: Irrigation pipes and farm equipment maintenance.

• Marine: Saltwater-resistant clamping for boats and offshore equipment.

Why Choose Our German Type Hose Clamps?

• Smooth Non-Perforated Band: The embossed thread design prevents hose shearing and damage during installation and high-pressure use.

• High Clamping Force: Engineered for high breaking torque, ensuring a leak-proof seal even in heavy-duty environments.

• Corrosion Resistance: Available in multiple material grades, including W1 (Galvanized Steel), W2 (SS201/304), and W4/W5 (Full Stainless Steel 304/316).

• Precision Engineering: Features a short housing for better pressure distribution and a compact profile for tight-space installations.

Package：small bag/box + outer carton + pallet 

FAQ About German Style Hose Clamps:

Q: What is the difference between German and American style hose clamps?

A: Unlike American clamps which have perforated slots, German style clamps feature an embossed, non-perforated band. This prevents the hose from being cut or extruded through the band, making German clamps safer for silicone and soft rubber hoses.

Q: What torque should be used for DIN 3017 clamps?

A: Recommended torque depends on the band width. Generally, 9mm bands support 3-4 Nm, while 12mm bands support 5-6 Nm. Always refer to our specific size chart for precise data.