Ultra 316SS High-Torque Worm-Drive Hose Clamp (Marine Grade, Various Sizes)

• Fully 316 Stainless (W5):  Manufactured entirely from marine-grade AISI 316 stainless steel (band, screw, and housing) for ultimate corrosion resistance. Suitable for use in saltwater, chemical, and outdoor environments without rusting.
• Extreme Clamping Power: High-torque worm-drive mechanism generates twice the tightening force of standard clamps. Securely seals against stubborn leaks and withstands heavy vibration where ordinary hose clips would loosen.
• Smooth Rolled-Edge Band: The non-perforated band with rolled edges protects hoses from being cut or damaged. Ensures an even, leak-free seal on all hose types (ideal for reinforced or silicone hoses) while preventing hose bulge through band slots.Professional Grade Design: Features a reinforced 8mm hex-head screw and one-piece housing for reliable high-torque tightening. Conforms to SAE J1508 HD clamp standards for heavy-duty performance. Lighter and easier to install than bulky T-bolt clamps, yet it offers comparable strength.
• Multiple Sizes (22–232mm): Wide range of sizes available, from 22–32mm small hoses up to 194–232mm large pipes. This broad clamping range reduces inventory needs. Each clamp is sold singly, so you can purchase just the sizes required for your project.

Technical Product Specifications:

• Material: AISI 316 stainless steel (W5 classification – all parts corrosion-proof
• Band Width: 12 mm (0.47″); Band Thickness: ~0.8 mm
• Adjustment Sizes: 22–32 mm, 32–44 mm, 38–64 mm, 57–83 mm, 70–95 mm, 89–114 mm, 102–140 mm, 140–178 mm, 165–203 mm, 194–232 mm diameter ranges
• Screw Type: 8 mm A/F slotted hex-head worm gear drive
• Torque Ratings: 11.9 Nm recommended tightening; ~17 Nm breaking torque (comparable to T-bolt clamps)
• Standards: Meets SAE J1508 Type HD (Heavy Duty Hose Clamp standard)
• Usage: Marine, industrial, automotive (turbo/exhaust), chemical processing – high-vibration or high-pressure connections

The Boltza Ultra 316SS High-Torque Hose Clamp is a marine-grade, heavy-duty worm-drive hose clip designed for professional use. Made entirely from AISI 316 stainless steel, it offers outstanding protection against rust and corrosion in even the harshest environments. Its advanced worm-drive mechanism and robust 8mm hex-head screw allow this clamp to be tightened to a high torque, delivering exceptional clamping force for sealing stubborn leaks. Boltza Ultra clamps achieve over twice the tension of standard hose clamps, making them a superior choice when dealing with high-vibration machinery or high-pressure hoses.

Unlike ordinary jubilee clips, the Boltza Ultra features a non-perforated band with rolled edges that safeguards your hoses. There are no perforation holes along the band, which means the hose material won’t extrude or get cut as you tighten. The smooth inner band and rounded edges provide even pressure distribution for a leak-proof seal without damage to the hose structure. This design is especially beneficial for reinforced rubber or silicone hoses that require a gentle yet firm grip.

Engineered to SAE J1508 Type HD standards, this high-torque clamp is built to perform in critical applications. It’s a reliable alternative to bulkier T-bolt clamps – offering comparable ultimate torque (~17 Nm break torque) and holding power in a more convenient, compact form. Each clamp has a 12 mm wide band and a heavy-duty housing that fully supports the screw, ensuring that the full thread depth engages for maximum tightening efficiency. Professional marine engineers, mechanics, and industrial technicians trust Boltza Ultra clamps for securing fuel lines, coolant hoses, turbocharger piping, exhaust connections, and chemical hoses. Even under constant vibration or thermal cycling, these clamps hold firm where lesser clamps would shake loose.

Available in sizes 22 mm through 232 mm, Boltza Ultra clamps cover a broad range of hose diameters with just a few variants. This wide adjustment range means you can stock fewer different clamp sizes while still covering all your needs. Select the size that fits your hose (each clamp is sold individually), and enjoy a straightforward installation with a flat-head screwdriver or 8 mm spanner. Whether you’re outfitting a marine engine, an industrial pump, or a performance vehicle, Boltza Ultra 316SS High-Torque Hose Clamps provide a secure, long-lasting hold you can count on in any environment.

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