Midland Industries 620040 Worm Gear Clamp 2-1/16 in Ss

Product Description

The MIDLAND INDUSTRIES 620040 is a worm gear clamp from the 620 Series, designed for secure hose and tube connections in plumbing, HVAC, and general industrial applications. The clamp features a stainless steel band and housing with a stainless steel screw, providing corrosion resistance in wet or chemically active environments. It accepts a nominal diameter of 2-1/16 inches with a maximum clamp diameter of 3 inches, giving installers a workable range for variable hose outside diameters. A single 5/16-inch bolt drives the worm gear mechanism for reliable, even clamping force. Rated at SAE 40, this clamp meets established automotive and industrial standards for hose retention.

The 620040 is suited for residential and light commercial installations where a durable, general-purpose worm-drive clamp is required. Typical applications include hose connections on HVAC equipment, plumbing drain and supply lines, pool and spa equipment plumbing, and general fluid transfer systems. The 1/2-inch band width distributes clamping load evenly across the hose surface, reducing the risk of hose damage during tightening. Plumbers, HVAC technicians, and pool service professionals commonly use this clamp when connecting flexible hose to rigid fittings or barbed adapters.

Key Features

• Stainless steel band, housing, and screw for corrosion resistance in wet environments
• Worm-drive mechanism with a single 5/16-inch bolt for controlled, even clamping force
• Nominal diameter of 2-1/16 inches with a maximum clamp diameter of 3 inches for flexible fitment
• 1/2-inch band width reduces stress concentration on hose surface
• SAE 40 rated, meeting established industry standards for hose clamp performance
• Lightweight at 0.06 pounds, suitable for installations where component weight is a consideration

Compatibility

Designed as a general-purpose worm-drive hose clamp for use with flexible hose and tubing in the 2-1/16-inch to 3-inch outside diameter range across HVAC, plumbing, pool, and industrial fluid systems.

Installation Notes

Installation is performed by plumbers, HVAC technicians, or pool service professionals using a standard nut driver or screwdriver. Depressurize and shut off fluid flow to the system before removing or installing any hose clamp. Position the clamp over the hose before sliding the hose onto the fitting, then advance the worm screw until firm clamping pressure is achieved without over-tightening, which can cut or distort the hose. Verify no leakage before returning the system to service.