SIOUX CHIEF 508-3PK PIPE HANGER 3/4" CTS

I am using these with 3/4 in. copper (cold) potable water supply which runs parallel with the 3/4 in and 1/2 in.hot water which is clamped tight to the joists such that branches can be pass over/under each other. The mounting screws are copper-plated the rest of the assembly is copper and I found I had to pre-drill pilot hoes in old old growth fir lest they snap off. I would call them super if the machine screws were a tad longer since it is hard to rotate the clamping strap once in place with 3/4 in pipe. All in all a quality product. I dont think it was included in the Prime but came from an outfit called TheSaleBox thru Amazon.OCTOBER 2014 UPDATE:I used a magnetic Phillips bit on these and discovered that additional parts of this assembly are copper plated:the bell shaped set-off seems to be copper, while the straps are plated but they seem well enough covered to avoid the reaction between ferrous metal and copper which can eat-up the copper and cause all kinds of electrical issues and water leakage. so I am remaining with 4 stars but think the consumer should be aware.I also began dipping the screws in bee's wax and therefore avoiding drilling pilot holes in my old growth D. Fir joists. hint:buy a wax toilet ring at the HomeBox store equals cheap bee's wax.

Received one (1) pipe hanger in a plastic bag | description states a box of 25 | Product picture shows box. Don't know if its an error or an attempted rip off. Very disappointing.