DX engineering makes em in both 2 inch and also 3 inch. These are both
just cast aluminum irrigation pipe clamps, but both using SS carriage bolt and
mating SS hardware....+ SS nylock.
They both work superb. I have been using both the 2 inch and 3 inch
versions since 1980. I live close to the ocean.
The SS carriage bolt is slick, as is has a square under the domed head... which
fits the square hole in the clamp. IE: only one wrench required to tighten.
There is no way in hell these will ever slip on the boom, cant. They are aprx
3/16 to 1/4 thick al. Just use a thimble, and also some never seize goop
on the SS threads.
https://www.dxengineering.com/search/part-type/antenna-boom-support-brackets?tw=boom&sw=Antenna%20Boom%20Support%20Brackets
Shows both versions, 2 inch + 3 inch.
https://www.dxengineering.com/search/part-type/antenna-boom-support-brackets/product-line/dx-engineering-atbb-2-boom-brackets?autoview=SKU&sortby=Default&sortorder=Ascending
2 inch
https://www.dxengineering.com/search/part-type/antenna-boom-support-brackets/product-line/dx-engineering-atbb-3-boom-brackets?autoview=SKU&sortby=Default&sortorder=Ascending
3 inch
ONLY trick to using either sized clamp is that it HAS to be slid over that part
of the boom ..1st ! It can not be added..after the fact... like say a 2
piece clamp assy.
Jim VE7RF
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