FLANGE MOUNTING SEACOCKS

A WORD ON THREAD FORMS
The American standard for tapered or parallel threads have a thread flank angle of 60°. The British standard for tapered or parallel threads have a thread flank angle of 55°. Identification can also be made by inspecting the root and crest of the threads. The truncation of the root and crest of American standard threads are flat. The truncation of the root and crest of British standard threads are round.

Forespar® offers a wider selection of extremely strong and reliable marine grade plumbing fittings. You will find each product to be carefully designed for ease of installation, versatility in application as well as unsurpassed durability.

Note: If a thru-hull is to be installed less than 6” (125.39mm) above waterline, a ball-valve or seacock must also be used.

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