Hollow Bolt Clamp Single Bolt Hose Clamp

A Single Bolt Hose Clamp hollow bolt clamp is a specialized type of high-performance clamping device, easily identified by its distinctive hollow or "hollowed-out" housing and single bolt tightening mechanism. It is renowned for its ability to generate extremely high clamping forces, making it a superior choice for demanding industrial, automotive, and marine applications.

Material of single bolt hose clamp

W1 - All parts carbon steel with zinc plated. 

W2 - Band and bridge stainless steel 201 or 304, bolt, sleeve and shaft carbon steel with zinc/nickel plated

W4 - All parts SS301/304

W5 - All parts SS316

Key Features of hollow single bolt hose clamp

Hollow/Slotted Housing:

This is the defining feature. The housing that contains the tightening mechanism is not solid but has large openings or slots.

Primary Function: These slots allow for visual inspection of the worm gear and band engagement even after installation. This helps in verifying that the clamp is properly seated and engaged.

Secondary Benefit: The openings allow water, dust, and other debris to easily wash out, preventing clogging and corrosion of the internal mechanism. This is often referred to as a "self-draining" or "self-cleaning" feature.

Single Bolt (Worm Gear) Mechanism:

Unlike standard hose clamps with a small Phillips/slot screw, this clamp uses a single, robust hex bolt or hex head screw (e.g., 6mm or 7mm).

This design allows for the application of high torque using a socket wrench or a hex key, resulting in a much more powerful and uniform clamping force compared to clamps with smaller screws.

Heavy-Duty Band:

The band is typically made from high-grade, corrosion-resistant stainless steel (AISI 304 or 316).

It is thicker and wider than bands on standard clamps, providing the structural strength needed to handle the high tension without stretching or deforming.

Common Applications of hollow single bolt hose clamp

This clamp is used wherever a secure, heavy-duty connection is paramount:

Marine Engines: Cooling systems, exhaust manifolds, raw water intake hoses.

Heavy-Duty Trucks & Automotive: Boost pipes, charge air coolers, silicone hose connections in performance engines.

Industrial Equipment: Hydraulic systems, high-pressure air and water lines, chemical processing equipment.

Agricultural Machinery: For coolant, fuel, and hydraulic hoses on tractors and combines.