I have for sale a mounting plate for mounting the boom to a mast. Comes with all 4 U bolts. Would work good for mounting a cross boom for stacking yagis or for satellite antennas also. Asking $15 plus a few bucks for shipping. 73s John NE0P __________________________________________________ Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now. http://mailplus.yahoo.com