Gilbert, Busca's t-bolts were a dead ringer for the ones in the West catalog; her tops are not that large, just 1/4". That diameter works pretty well because then the gap between the clevis ears isn't excessively larger than the thickness of the chainplates. Sounds like you have oddball t-bolts. Are your chainplates really heavy too? When setting Busca up one of the first times, I found (the hard way) that the t-bolts can bend if the shrouds are allowed to flop over to the sides out of position while the mast is being raised. Now, I always check them prior to hoisting. Tod -----Original Message----- From: montgomery_boats-bounces+htmills=bright.net@mailman.xmission.com [mailto:montgomery_boats-bounces+htmills=bright.net@mailman.xmission.com] On Behalf Of Gilbert Landin Sent: Wednesday, December 22, 2004 7:47 PM To: For and about Montgomery Sailboats Subject: Re: M_Boats: turnbuckles I am replacing my t-bolts on my shrouds, it looks like all of them have some bend to them, some more then others. Anyway Im trying to figure the specs. I went to west marine, they sell the whole turnbuckle. I was able to size mine with one of theirs. It looks like a 1/4" bolt . My question is the t-top of my bolt measures 1/2" in diameter, thats twice the size as anything they have in the same bolt size. Looking thru internet vendors they list a "pin/jaw width" size of 1/4" which is kind of standard on the different sites. Has anyone that has changed t-bolts on a M-17 remeber having to downgrade to 1/4" pins? gilbert _______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats