WTB Giant Trinity Vector Seatpost clamp

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Help! The bolt that clamps my saddle to the seat post sheered off during Masters Nationals Time Trial last week. I lost the whole clamp
I am looking for this:
http://i1326.photobucket.com/albums/u660/jimthies/image_zpsa855a86b.png

https://ci4.googleusercontent.com/proxy/RbjGeIJDKfMtZ5t32SBed_lowDZ1Cc5YiskZJy0_xrQKswf-4MNOzIlgxTk2qLnqTbvYSiO_rWgVDsupc8_jYYvaIlLD=s0-d-e1-ft#https://pbs.twimg.com/media/BwoD-ArCcAElTwt.jpg