Walker 36528 Walker Band Clamp

Diameter (in): 3-1/2 Inch | Diameter (mm): 60mm. Walker band-style exhaust clamps give you a 360 degree seal that won't leak. This particular style was created to "butt-joint" two pipes of the same diameter together--without the need to fit one pipe inside of the other. The clamps come with pre-attached hardware and Grade 8 bolts for high-strength and temperature durability.