t-bolt clamp A T-bolt hose clamp is a high-strength, heavy-duty clamp designed for applications requiring a secure, reliable connection under high pressure or vibration. Here's a breakdown of what it is and where it's used: 🔧 What is a T-Bolt Hose Clamp? Construction: Made of a T-shaped bolt, a band (usually stainless steel), and a nylon insert lock nut or metal nut. The bolt tightens the clamp to create a uniform seal. Design: Provides 360° clamping force, making it superior to standard worm-drive clamps in terms of strength and reliability. Sizes: Available in various diameters to fit different hose sizes.