Breeze TB150SS Stainless Steel T-Bolt Clamp Effective Diameter Range: 1.5" - 1.64" (38.1mm - 42.9mm) 3/4" (19mm) wide, 300 Series Stainless Steel Band Stainless Steel Bolt Meets or exceeds SAE Spec. J1508 for T-Bolt clamps Superior welded construction, Floating bridge liner Reliable, heavy duty method of assembling hose ducting connections and tubing.