All 5/16″ hex head for handy socket wrench/nut driver tightening.2. Welded worm housing increases the strength of the hose clamp by 60%.3. Special band design to protect your hoses. Safe sealing and last longer.5.

All 5/16″ hex head for handy socket wrench/nut driver tightening.2. Welded worm housing increases the strength of the hose clamp by 60%.3. Special band design to protect your hoses. Safe sealing and last longer.5.