3/4 Inch (19mm) Adjustable Hose Clamp

Description:

3 4 hose clamp, diameter 3/4” or 19mm, is a kind of steel worm clamps. The worm hose clamp is a specialized fastener designed to securely attach fittings to hoses. This steel worm clamps feature a perforated steel band construction with an integrated worm gear mechanism - the screw utilizes a combination hex head with either Phillips or slotted drive options for versatile tightening. The unique design employs a worm screw that engages with precisely spaced grooves in the steel band, allowing uniform radial compression when tightened. As the screw is rotated, it draws the band through the housing, progressively reducing the clamp diameter to create a strong, leak-proof seal around the hose connection. The dual-drive screw head accommodates both wrench and screwdriver operation for convenient installation in various working conditions.

Precision-Engineered 3/4" Hose Clamps

Our 3/4" (Size 12) Hose Clamps provide a reliable, leak-proof seal for a wide variety of small-diameter applications. Manufactured from premium 304/316 Stainless Steel, these clamps are built to withstand high pressure and harsh environmental conditions without backing off.

Material:

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

W2 - Hosing and band stainless steel 201 or 301, screw carbon steel with zinc/nickel plated

W4 - All parts stainless steel 201 or 304. (screw, hosing and band)

Technical Specifications

• Size Range: Adjustable from 8-12mm to 18-32mm.

• Band Width: 8mm for even pressure distribution.

• Material: Corrosion-resistant Stainless Steel (W2/W4/W5 options available).

• Drive Type: Philip/Slotted hex head for easy installation with a screwdriver or socket wrench.

Feature:

This steel worm clamps are specifically designed for small-diameter hoses (3/4") in tight spaces, featuring a narrow 5/16" band width for optimal fit and secure fastening. The worm hose clamp miniature size ensures easy installation even in confined areas where standard clamps may not fit.

3 4 hose clamp unique perforated steel band design allows the worm gear screw to fully engage with the band's grooves, creating a stronger, more reliable grip compared to traditional clamps. As the screw tightens, it interlocks with the precisely spaced slots, ensuring even pressure distribution around the hose circumference for a leak-proof seal.

Available in multiple configurations, the worm hose clamp provides versatility while maintaining consistent clamping force, making them ideal for small hose applications requiring precision and durability.

Application:

3 4 hose clamp is essential component in numerous air and fluid transfer systems. Their precision engineering makes them ideal for creating secure, leak-proof connections in applications where space constraints and reliability are paramount concerns.

- Industrial Applications. In industrial settings, these clamps are extensively used in hydraulic systems, compressed air lines, and coolant circulation networks. Their robust construction ensures long-term performance even in high-vibration environments. Manufacturers particularly value them for assembly lines and heavy machinery where consistent pressure maintenance is crucial.

- Automotive Systems. The automotive industry relies on these clamps for fuel lines, vacuum hoses, and cooling systems. Their corrosion-resistant materials and secure grip prevent fluid leaks in engine compartments where temperatures fluctuate dramatically. Many OEMs specify these clamps for their ability to maintain seal integrity throughout a vehicle's service life.

- Electronics and Precision Equipment. For sensitive electronic cooling systems and laboratory instruments, these miniature clamps provide the perfect balance of secure fastening and gentle pressure distribution. Their non-marring design protects delicate tubing in medical devices, semiconductor manufacturing equipment, and precision analytical instruments.

The broad adoption across these industries demonstrates how this simple yet ingeniously designed fastener solves critical connection challenges in both everyday and highly specialized applications. Proper selection based on hose material, diameter, and operating conditions ensures optimal performance in any installation.

Package: small bag/box + outer carton + pallet 

Frequently Asked Questions (FAQ)

Q: Is a 3/4" hose clamp the same as an SAE Size 12? A: Yes, in the industry standard sizing, a 3/4" clamp typically corresponds to an SAE #12, though the adjustable range allows it to fit slightly smaller or larger diameters.

Q: Can these 3/4" clamps be used for marine applications? A: For marine or saltwater environments, we recommend our 316 Stainless Steel (W5) version to ensure maximum resistance to salt corrosion.

Q: Do you offer bulk discounts for 3/4" hose clamps? A: As a direct manufacturer, RockClamp offers tiered wholesale pricing for bulk orders. Contact us for a custom quote based on your volume.

Why Partner with RockClamp?

RockClamp is a specialized Professional R&D Manufacturer with decades of experience in high-performance fastening solutions. We don't just resell; we design and test our clamps to ensure they exceed industry standards.

By sourcing Direct from the Factory, you receive:

• Consistent Quality: Every 3/4" clamp is inspected for thread precision and band strength.

• Expert Support: Our engineers can provide technical data sheets and material certifications for your project.

• Rapid Fulfillment: High-volume stock and optimized logistics for global distribution.