Parker 97HC-8 Worm Gear Clamp 1 Inch Stainless Steel

Product Description

The PARKER 97HC-8 is a worm drive hose clamp designed for secure, leak-free connections on hoses and fittings in plumbing, HVAC, and general mechanical applications. The clamp features a stainless steel band paired with a brass housing, combining corrosion resistance with reliable clamping force. It accommodates hose outside diameters from 0.44 inches up to 1.0 inch, making it suitable for a range of hose sizes within that range. The 0.5-inch-wide band distributes clamping load evenly across the hose surface to prevent deformation. Tightening is performed with a standard hex driver at a 0.31-inch hex size. At 0.04 pounds, it is a lightweight fastener suitable for both new installations and service work.

This clamp is used in residential and light commercial installations where plumbers, HVAC technicians, and mechanical contractors need a dependable worm drive clamp for hose-to-barb or hose-to-fitting connections. Typical applications include condensate drain lines, fuel lines, radiator hoses, and water supply connections. The stainless steel band resists rust and oxidation in wet or humid environments, making it a practical choice for installations subject to moisture exposure.

Key Features

• Worm drive design with hex drive tightening — 0.31-inch hex size for standard nut drivers or hex keys
• Stainless steel band resists corrosion in wet and humid service environments
• Brass housing provides durable thread engagement and reliable torque retention
• 0.5-inch band width distributes clamping force evenly to protect hose integrity
• Fits hose outside diameters from 0.44 inches to 1.0 inch
• RoHS compliant construction

Compatibility

Designed as an OEM-style worm gear clamp for use with rubber or silicone hoses in the 0.44-inch to 1.0-inch outside diameter range across plumbing, HVAC condensate, and general mechanical piping applications.

Installation Notes

Installation is performed by licensed plumbers or HVAC technicians using a nut driver or hex key matching the 0.31-inch hex drive. Ensure the hose is fully seated on the barb or fitting before positioning the clamp and tightening. Do not overtighten — excessive force can cut into softer hose materials. Follow applicable IPC or IFGC guidelines for the specific piping system being serviced.