Breeze TB650 Standard T-Bolt Clamp Effective Diameter Range: 6.5" - 6.81" (165.1mm - 173mm) 3/4" (19mm) wide, 300 Series Stainless Steel Band Plated Carbon Steel Bolt, High Strength, One-Piece Stainless Steel Trunnion 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.