Understanding Underwater Hardware Packaging & Pipe Thread Styles
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These durable little tags have everything a retailer needs to showcase products and ring up sales. On each tag you will find the Perko name colorfully printed in blue, our figure number, a product description and the bar code for your scanner. There is even a California Proposition 65 statement (where applicable) on the back. These tags are designed to securely hold on to the product and hang from your standard peg hooks. And since the tags are small, you can also simply toss them into a bulk bin if you prefer. Either way, the tags will stay attached, unlike stickers that fall off bronze parts. These tags are available on thru hulls, adapters and several types of strainers. Look for the "DP" designation. Our “DP” Dealer Package for small items (like the smaller thru hull fittings and tailpieces) will be a 5 or 10 piece bulk box with a bar code label on each individual unit.
THESE 5 OR 10 PIECE CARTONS CANNOT BE BROKEN. Larger items (like valves & strainers) will be available individually boxed as a single unit standard package with a barcode label on the outside of the box.
To be sure the parts you receive are barcoded for Retail Sale, order either a "DP" version or a single unit standard package.
All of our small repair/replacement strainer parts are now barcoded. Top Castings (99A), Bottom Castings (99B), Transparent Cylinders (99C), Strainer Baskets (99D) and Covers (99E) are available individually boxed as barcoded single unit standard packages. Smaller items or kits including Cover Hardware Kits (99L), Gasket Kits (99M & 99R) and Tie Rod Kits (99P) are individually packaged as "DP" items in bags with a barcode label.
Pipe Thread Styles
Straight Pipe Threads
Straight pipe threads are used where connections are purely mechanical and/or bedding compounds are generally used. The intake side of all seacocks, thru-hulls and scuppers with hose barbs, and all flanged lock nuts use straight threads.
Tapered Pipe Threads
Tapered pipe threads are used where connections must also be watertight. The output side of seacocks, in-line valves, hose adapters, drain plugs, raw water and pump strainers use tapered threads.
Combination Tapered/Straight Pipe Threads
On all other thru-hulls, scuppers and intake strainers we use a unique combination pipe thread. The first few threads are tapered. The rest remain straight threads. This approach allows the same thru-hull to seal when coupled with an in-line valve or to engage at various depths when connected to a seacock.