Midland Industries 3000004 Miniature Worm Gear Clamp

Product Description

The MIDLAND INDUSTRIES 3000004 is a 300 Series miniature worm gear clamp designed for small-diameter hose and tubing connections in a wide range of trade applications. The clamp adjusts from a minimum diameter of 7/32 inches to a maximum of 5/8 inches, making it suitable for tight-space installations where standard-size clamps will not fit. Constructed from carbon steel, it delivers reliable clamping force through a 1/4-inch bolt drive and a 5/16-inch wide band. Licensed technicians and installers working in HVAC, plumbing, or fluid-handling systems will find this clamp straightforward to install with common hand tools.

This miniature worm gear clamp is used in residential and light commercial applications wherever small-bore hose connections require a secure, adjustable seal. Typical install scenarios include low-pressure tubing fittings, drain line connections, and condensate line assemblies. Its compact footprint - approximately 0.3 inches in height and 0.65 inches in width - allows use in confined spaces where accessibility is limited. The 300 Series designation identifies it within MIDLAND INDUSTRIES' worm-drive clamp line, specifically the 5/16-inch band mini series.

Key Features

• Clamping range: 7/32 inches minimum to 5/8 inches maximum diameter
• Carbon steel construction for consistent clamping force under vibration
• 5/16-inch wide band distributes load evenly on small hose ODs
• 1/4-inch bolt drive compatible with standard nut drivers and hex tools
• Compact dimensions suit confined or restricted installation spaces
• Size 4 classification within the 300 Series mini worm-drive line

Compatibility

Designed as an OEM-style replacement or new-install worm gear clamp for small-diameter hose and tubing connections in HVAC, plumbing, and fluid-handling systems.

Installation Notes

Installation is performed by licensed HVAC technicians, plumbers, or qualified service professionals depending on the application. De-energize or shut off fluid flow to the system before removing or installing clamps. Use an appropriate nut driver or hex-head screwdriver to tighten the worm drive - do not overtighten, as excess torque on small-band clamps can damage soft tubing. Follow applicable codes including the International Mechanical Code or IFGC as relevant to the connected piping system.