Marine Engine Hose Clamp Upgrade; #1 First up is the Perforated 316 Stainless-Steel hose clamp. As respected as the original design may be, it isn’t without its flaws.
Primary among these is the fact many hose clamps rely on a series of perforations. that are cut into the band, to form the screw threads. these perforations eliminate a significant portion of the bands cross section, weakening it and allowing it to elongate when tensioned.
the elongation leads to micro-cracking, which in turn provides a toe hold for crevasse corrosion, a form of metal decay that is peculiar to stainless steel alloy. when hose clamp’s part they nearly always do so along these perforations.
either as a result of overstress or corrosion or a combination of both. Additionally, the typical band itself is comparatively thin, which makes it relatively easy to strip the thread if the screw is over tightened.
T-Bolt stainless steel hose clamp: #3
Double Bolt Hose Clamp: #4
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