Breeze TB338 Standard T-Bolt Clamp Effective Diameter Range: 3.38" - 3.69" (85.7mm - 93.7mm) 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.